WO2023156482A1 - Thermostabile photopolymere im sichtbaren spektralbereich und photopolymer-zusammensetzungen damit - Google Patents
Thermostabile photopolymere im sichtbaren spektralbereich und photopolymer-zusammensetzungen damit Download PDFInfo
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- WO2023156482A1 WO2023156482A1 PCT/EP2023/053804 EP2023053804W WO2023156482A1 WO 2023156482 A1 WO2023156482 A1 WO 2023156482A1 EP 2023053804 W EP2023053804 W EP 2023053804W WO 2023156482 A1 WO2023156482 A1 WO 2023156482A1
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- WIPO (PCT)
- Prior art keywords
- ylene
- alkyl
- photopolymer
- substituted
- coinitiator
- Prior art date
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- 239000000203 mixture Substances 0.000 title claims abstract description 99
- 230000003595 spectral effect Effects 0.000 title description 5
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims abstract description 84
- 239000000178 monomer Substances 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 19
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000002904 solvent Substances 0.000 claims abstract description 17
- 229920000642 polymer Polymers 0.000 claims abstract description 14
- 239000011159 matrix material Substances 0.000 claims abstract description 13
- 230000003647 oxidation Effects 0.000 claims abstract description 12
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 12
- 239000000654 additive Substances 0.000 claims abstract description 10
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 10
- 238000004364 calculation method Methods 0.000 claims abstract description 9
- ZOMNIUBKTOKEHS-UHFFFAOYSA-L dimercury dichloride Chemical group Cl[Hg][Hg]Cl ZOMNIUBKTOKEHS-UHFFFAOYSA-L 0.000 claims abstract description 6
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- 238000012937 correction Methods 0.000 claims abstract description 3
- 239000003381 stabilizer Substances 0.000 claims abstract description 3
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- 239000000975 dye Substances 0.000 claims description 56
- 150000003254 radicals Chemical class 0.000 claims description 43
- 150000001642 boronic acid derivatives Chemical class 0.000 claims description 39
- 150000001768 cations Chemical class 0.000 claims description 28
- 239000001257 hydrogen Substances 0.000 claims description 25
- 229910052739 hydrogen Inorganic materials 0.000 claims description 25
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- 238000004519 manufacturing process Methods 0.000 claims description 23
- 150000002367 halogens Chemical class 0.000 claims description 19
- 150000002431 hydrogen Chemical group 0.000 claims description 17
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 16
- 150000001450 anions Chemical class 0.000 claims description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 13
- 230000003287 optical effect Effects 0.000 claims description 13
- 229910052736 halogen Inorganic materials 0.000 claims description 12
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 11
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 10
- 125000003118 aryl group Chemical group 0.000 claims description 9
- 125000004432 carbon atom Chemical group C* 0.000 claims description 9
- 229910052717 sulfur Inorganic materials 0.000 claims description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 8
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 8
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 8
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 claims description 8
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- 238000012546 transfer Methods 0.000 claims description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 5
- 230000005283 ground state Effects 0.000 claims description 5
- 239000011593 sulfur Substances 0.000 claims description 5
- 125000000094 2-phenylethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])C([H])([H])* 0.000 claims description 4
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 4
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 4
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- 125000003944 tolyl group Chemical group 0.000 claims description 4
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims description 4
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- 229910019142 PO4 Inorganic materials 0.000 claims description 3
- JHRWWRDRBPCWTF-OLQVQODUSA-N captafol Chemical compound C1C=CC[C@H]2C(=O)N(SC(Cl)(Cl)C(Cl)Cl)C(=O)[C@H]21 JHRWWRDRBPCWTF-OLQVQODUSA-N 0.000 claims description 3
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims description 3
- 229910052740 iodine Inorganic materials 0.000 claims description 3
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- 125000003107 substituted aryl group Chemical group 0.000 claims description 3
- 125000003866 trichloromethyl group Chemical group ClC(Cl)(Cl)* 0.000 claims description 3
- 125000000008 (C1-C10) alkyl group Chemical group 0.000 claims description 2
- 125000004105 2-pyridyl group Chemical group N1=C([*])C([H])=C([H])C([H])=C1[H] 0.000 claims description 2
- 125000003349 3-pyridyl group Chemical group N1=C([H])C([*])=C([H])C([H])=C1[H] 0.000 claims description 2
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- 229910002651 NO3 Inorganic materials 0.000 claims description 2
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- 125000004423 acyloxy group Chemical group 0.000 claims description 2
- 125000003545 alkoxy group Chemical group 0.000 claims description 2
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- 125000000068 chlorophenyl group Chemical group 0.000 claims description 2
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- 125000004772 dichloromethyl group Chemical group [H]C(Cl)(Cl)* 0.000 claims description 2
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- 125000001028 difluoromethyl group Chemical group [H]C(F)(F)* 0.000 claims description 2
- 125000001072 heteroaryl group Chemical group 0.000 claims description 2
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- UCFFGYASXIPWPD-UHFFFAOYSA-N methyl hypochlorite Chemical compound COCl UCFFGYASXIPWPD-UHFFFAOYSA-N 0.000 claims description 2
- 125000004573 morpholin-4-yl group Chemical group N1(CCOCC1)* 0.000 claims description 2
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 2
- 238000005457 optimization Methods 0.000 claims description 2
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Inorganic materials [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 claims description 2
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 claims description 2
- 125000000587 piperidin-1-yl group Chemical group [H]C1([H])N(*)C([H])([H])C([H])([H])C([H])([H])C1([H])[H] 0.000 claims description 2
- 125000001424 substituent group Chemical group 0.000 claims description 2
- 150000003871 sulfonates Chemical class 0.000 claims description 2
- 125000004784 trichloromethoxy group Chemical group ClC(O*)(Cl)Cl 0.000 claims description 2
- ITMCEJHCFYSIIV-UHFFFAOYSA-N triflic acid Chemical compound OS(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-N 0.000 claims description 2
- 125000000876 trifluoromethoxy group Chemical group FC(F)(F)O* 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-L Phosphate ion(2-) Chemical compound OP([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-L 0.000 claims 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims 1
- 150000007942 carboxylates Chemical class 0.000 claims 1
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- 125000005843 halogen group Chemical group 0.000 claims 1
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- 125000005497 tetraalkylphosphonium group Chemical group 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- UFDHBDMSHIXOKF-UHFFFAOYSA-N tetrahydrophthalic acid Natural products OC(=O)C1=C(C(O)=O)CCCC1 UFDHBDMSHIXOKF-UHFFFAOYSA-N 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- IUTCEZPPWBHGIX-UHFFFAOYSA-N tin(2+) Chemical compound [Sn+2] IUTCEZPPWBHGIX-UHFFFAOYSA-N 0.000 description 1
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 1
- 239000001003 triarylmethane dye Substances 0.000 description 1
- 150000003918 triazines Chemical class 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- SRPWOOOHEPICQU-UHFFFAOYSA-N trimellitic anhydride Chemical compound OC(=O)C1=CC=C2C(=O)OC(=O)C2=C1 SRPWOOOHEPICQU-UHFFFAOYSA-N 0.000 description 1
- QXJQHYBHAIHNGG-UHFFFAOYSA-N trimethylolethane Chemical compound OCC(C)(CO)CO QXJQHYBHAIHNGG-UHFFFAOYSA-N 0.000 description 1
- 150000004072 triols Chemical class 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- PSDQQCXQSWHCRN-UHFFFAOYSA-N vanadium(4+) Chemical compound [V+4] PSDQQCXQSWHCRN-UHFFFAOYSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 235000012431 wafers Nutrition 0.000 description 1
- 239000001018 xanthene dye Substances 0.000 description 1
- GBNDTYKAOXLLID-UHFFFAOYSA-N zirconium(4+) ion Chemical compound [Zr+4] GBNDTYKAOXLLID-UHFFFAOYSA-N 0.000 description 1
- 150000007934 α,β-unsaturated carboxylic acids Chemical class 0.000 description 1
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/44—Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/46—Polymerisation initiated by wave energy or particle radiation
- C08F2/48—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
- C08F2/50—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light with sensitising agents
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/0005—Production of optical devices or components in so far as characterised by the lithographic processes or materials used therefor
- G03F7/001—Phase modulating patterns, e.g. refractive index patterns
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/027—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
- G03F7/028—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with photosensitivity-increasing substances, e.g. photoinitiators
- G03F7/029—Inorganic compounds; Onium compounds; Organic compounds having hetero atoms other than oxygen, nitrogen or sulfur
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/027—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
- G03F7/028—Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with photosensitivity-increasing substances, e.g. photoinitiators
- G03F7/031—Organic compounds not covered by group G03F7/029
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/09—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers
- G03F7/105—Photosensitive materials characterised by structural details, e.g. supports, auxiliary layers having substances, e.g. indicators, for forming visible images
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2403—Layers; Shape, structure or physical properties thereof
- G11B7/24035—Recording layers
- G11B7/24044—Recording layers for storing optical interference patterns, e.g. holograms; for storing data in three dimensions, e.g. volume storage
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
- G11B7/245—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing a polymeric component
Definitions
- the invention relates to photopolymer compositions using selected coinitiators, in particular triarylalkyl borate salts as coinitiators with a selected oxidation potential, and holographic media and holograms produced therefrom.
- the invention also relates to a process for producing the special coinitiators and the coinitiators obtainable by this process, a process for producing a holographic medium using the special photopolymer composition including the special coinitiators and a holographic medium obtainable using the photopolymer composition according to the invention.
- the invention relates to a layer structure comprising a holographic medium according to the invention and also special triarylalkyl borate salts suitable as coinitiators.
- a method for calculating the oxidation potential against the saturated calomel electrode in acetonitrile of the special coinitiators is presented.
- Photopolymer compositions incorporating general forms of triarylalkyl borate salts are known in the art.
- WO 2008/125229 describes a photopolymer composition and a photopolymer obtainable therefrom, which comprise polyurethane matrix polymers, one or more writing monomers based on acrylate and photoinitiators containing a coinitiator and a dye.
- the refractive index modulation An generated by the holographic exposure plays the decisive role.
- the interference field from the signal and reference light beam (in the simplest case, that of two plane waves) is mapped into a refractive index grating by the local photopolymerization of writing monomers such as high-index acrylates at locations of high intensity in the interference field.
- the refractive index grating in the photopolymer contains all the information of the signal light beam.
- the signal can then be reconstructed again by illuminating the hologram only with the reference light beam.
- the strength of the signal reconstructed in this way in relation to the strength of the incident reference light is called the diffraction efficiency, hereinafter DE for diffraction efficiency.
- the DE results from the quotient of the intensity of the light diffracted during the reconstruction and the sum of the intensities from the non-diffracted and diffracted light.
- the matrix polymers and the writing monomers of a photopolymer composition should always be chosen so that their refractive indices differ as much as possible differentiate.
- One way of realizing this is to use matrix polymers with as low a refractive index as possible and writing monomers with as high a refractive index as possible.
- Suitable matrix polymers with a low refractive index are, for example, polyurethanes obtainable by reacting a polyol component with a polyisocyanate component.
- holographic media made from photopolymer compositions that the matrix polymers are highly crosslinked in the finished medium. If the degree of crosslinking is too low, the medium does not have sufficient stability. This can result in the quality of holograms written in the media degrading significantly and changing over time, which is undesirable. In the worst case, the holograms can even be destroyed afterwards.
- the photopolymer films containing the photopolymer composition have a large processing window and can be exposed without loss of index modulation.
- the choice of a suitable photoinitiator is of crucial importance for the properties of the photopolymer.
- Very suitable photoinitiators for photopolymer films of the type mentioned at the outset can consist of type II photoinitiators.
- triarylalkyl borate salts can be combined as coinitiators together with suitable sensitizers, such as cationic, anionic, or neutral dyes, as a photoinitiating system (PIS), so that radical photopolymerization of suitable monomers can be triggered by UV, visible, or near-infrared light.
- PIS photoinitiating system
- the preparation of such PIS is widely described in the prior art, and selected tetraalkylammonium triarylalkyl borates are commercially available as coinitiators and dyes.
- PIS have already been used in photopolymers and holographic media and their advantages have been described.
- cationic dyes such as the dye of formula (I) described, which together with the tris (3-chloro-4-methylphenyl) hexylborate anion a PIS for photocurable materials can be used.
- EP 3058423 describes a broad selection of triarylalkyl borate salts suitable for photopolymers in combination with dyes of the formula (I).
- anions with electron-rich aromatics such as the tris-(4-tert-butylphenyl)hexylborate anion
- very electron-poor aromatics such as the tris-(4-trifluoromethylphenyl)hexylborate anion.
- a first object of the invention is a photopolymer composition
- a photopolymer composition comprising: a) matrix polymers, b) writing monomers, c) at least one photoinitiator system, d) optionally at least one non-photopolymerizable component, e) optionally catalysts, radical stabilizers, solvents, additives and other auxiliaries and/or Additives, where the at least one photoinitiator system c) consists of at least one dye and at least one coinitiator, where at least one of the dyes has a structure according to formula (I), wherein
- R 201 is optional; when present is hydrogen, C 1 to C 16 alkyl, C 3 to C 6 alkenyl, C 5 to C 7 cycloalkyl or C 7 to C 16 aralkyl or C 6 to C 10 aryl ,
- R 203 is C 1 - to C 16 -alkyl, C 3 - to C 6 -alkenyl, C 5 - to C 7 -cycloalkyl or C 7 - to C 16 -aralkyl or C 6 - to C 10 -aryl,
- R 202 is hydrogen, C 1 - to C 16 -alkyl, C 3 - to C 6 -alkenyl, C 5 - to C 7 -cycloalkyl or C 7 - to C 16 -aralkyl, C 6 - to C 10 -aryl or hetaryl stands,
- R 204 is hydrogen, C 1 - to C 4 -alkyl, C 1 - to C 4 -alkoxy, halogen, cyano, nitro or C 1 - to C 4 -alkoxycarbonyl,
- a together with X 1 and X 2 and the carbon atom bonded between X 1 and X 2 represents a five- or six-membered aromatic or quasi-aromatic or partially hydrogenated heterocyclic ring which contains 1 to 4 heteroatoms and/or is benz- or naphthanellated and/or or may be substituted by nonionic radicals,
- X 2 is N, O or S, preferably N, and
- the matrix polymer a) can be any matrix polymer a) that the person skilled in the art for the invention
- Photopolymer composition would select. Suitable matrix polymers a) for the
- photopolymer compositions can be crosslinked and particularly preferably three-dimensionally crosslinked.
- the matrix polymers a) are polyurethanes, it being possible for the polyurethanes to be obtainable in particular by reacting at least one polyisocyanate component a1) with at least one isocyanate-reactive component all).
- the polyisocyanate component a1) preferably comprises at least one organic compound having at least two NCO groups. These organic compounds can be, in particular, monomeric di- and triisocyanates, polyisocyanates and/or NCO-functional prepolymers.
- the polyisocyanate component a1) can also contain or consist of mixtures of monomeric di- and triisocyanates, polyisocyanates and/or NCO-functional prepolymers.
- monomeric di- and triisocyanates All compounds well known per se to the person skilled in the art or mixtures thereof can be used as monomeric di- and triisocyanates. These compounds can have aromatic, araliphatic, aliphatic or cycloaliphatic structures.
- the monomeric di- and triisocyanates can also include monoisocyanates, i.e. organic compounds with an NCO group, in minor amounts.
- Suitable monomeric di- and triisocyanates are 1,4-butane diisocyanate, 1,5-pentane diisocyanate, 1,6-hexane diisocyanate (hexamethylene diisocyanate, HDI), 2,2,4-trimethylhexamethylene diisocyanate and/or 2,4, 4-trimethylhexamethylene diisocyanate (TMDI), isophorone diisocyanate (IPDI), 1,8-diisocyanato-4-(isocyanatomethyl)octane, bis-(4,4'-isocyanatocyclohexyl)methane and/or bis-(2',4-isocyanatocyclohexyl) methane and/or mixtures thereof with any isomer content, 1,4-cyclohexane diisocyanate, the isomeric bis(isocyanatomethyl)cyclohexanes, 2,4- and/or 2,6-diisocyanato-1-
- Suitable polyisocyanates are compounds with urethane, urea, carbodiimide, acylurea, amide, isocyanurate, allophanate, biuret, oxadiazinetrione, uretdione and/or iminooxadiazinedione structures obtainable from the aforementioned di- or triisocyanates are.
- the polyisocyanates are particularly preferably oligomerized aliphatic and/or cycloaliphatic di- or triisocyanates, it being possible in particular to use the above aliphatic and/or cycloaliphatic di- or triisocyanates. Very particular preference is given to polyisocyanates with isocyanurate, uretdione and/or iminooxadiazinedione structures and biurets based on HDI or mixtures thereof.
- Suitable prepolymers contain urethane and/or urea groups and, if appropriate, other structures, as mentioned above, resulting from modification of NCO groups.
- Such prepolymers can be obtained, for example, by reacting the abovementioned monomeric di- and triisocyanates and/or polyisocyanates all) with isocyanate-reactive compounds b1).
- Alcohols, amino or mercapto compounds, preferably alcohols, can be used as isocyanate-reactive compounds alll).
- these can be polyols.
- Polyester, polyether, polycarbonate, poly(meth)acrylate and/or polyurethane polyols can very particularly preferably be used as isocyanate-reactive compound alll).
- Suitable polyester polyols are, for example, linear polyester diols or branched polyester polyols, which can be obtained in a known manner by reacting aliphatic, cycloaliphatic or aromatic dicarboxylic or polycarboxylic acids or their anhydrides with polyhydric alcohols having an OH functionality of ⁇ 2.
- suitable di- or polycarboxylic acids are polybasic carboxylic acids such as succinic, adipic, suberic, sebacic, decanedicarboxylic, phthalic, terephthalic, isophthalic, tetrahydrophthalic or trimellitic acid and acid anhydrides such as phthalic, trimellitic or succinic anhydride or any mixtures thereof with one another.
- the polyester polyols can also be based on natural raw materials such as castor oil. It is also possible for the polyester polyols to be based on homopolymers or copolymers of lactones, which are preferably formed by addition of lactones or lactone mixtures such as butyrolactone, ⁇ -caprolactone and/or methyl- ⁇ -caprolactone onto hydroxy-functional compounds such as polyhydric alcohols with an OH functionality ⁇ 2 can be obtained, for example, of the type mentioned below.
- suitable alcohols are all polyhydric alcohols such as the C 2 -C 12 diols, the isomeric cyclohexanediols, glycerol or any mixtures thereof with one another.
- Suitable polycarbonate polyols can be obtained in a manner known per se by reacting organic carbonates or phosgene with diols or diol mixtures.
- Suitable organic carbonates are dimethyl, diethyl and diphenyl carbonate.
- Suitable diols or mixtures include the polyhydric alcohols mentioned per se in the context of the polyester segments with an OH functionality ⁇ 2, preferably 1,4-butanediol, 1,6-hexanediol and/or 3-methylpentanediol. Polyester polyols can also be converted into polycarbonate polyols.
- Suitable polyether polyols are, if appropriate, block-wise polyaddition products of cyclic ethers onto OH- or NH-functional starter molecules.
- Suitable cyclic ethers are styrene oxide, ethylene oxide, propylene oxide, tetrahydrofuran, butylene oxide, epichlorohydrin and any mixtures thereof.
- the polyhydric alcohols mentioned per se in the context of the polyester polyols with an OH functionality ⁇ 2 and primary or secondary amines and amino alcohols can be used as starters.
- Preferred polyether polyols are those of the aforementioned type based exclusively on propylene oxide or random or block copolymers based on propylene oxide with other 1-alkylene oxides.
- Propylene oxide homopolymers and random or block copolymers which have oxyethylene, oxypropylene and/or oxybutylene units are particularly preferred, with the proportion of oxypropylene units based on the total amount of all oxyethylene, oxypropylene and oxybutylene units being at least 20% by weight at least 45% by weight.
- oxypropylene and oxybutylene include all the respective linear and branched C 3 and C 4 isomers.
- low molecular weight i.e. with molecular weights ⁇ 500 g/mol
- short-chain i.e. containing 2 to 20 carbon atoms, aliphatic, araliphatic or cycloaliphatic di-, tri- or polyfunctional alcohols are also suitable as components of the polyol component alll) as polyfunctional, isocyanate-reactive compounds.
- neopentyl glycol 2-ethyl-2-butylpropanediol, trimethylpentanediol, position-isomeric diethyloctanediols, cyclohexanediol, 1,4-cyclohexanedimethanol, 1,6-hexanediol, 1,2- and 1,4- cyclohexanediol, hydrogenated bisphenol A, 2,2-bis(4-hydroxycyclohexyl)propane or 2,2-dimethyl-3-hydroxypropionic acid, 2,2-dimethyl-3-hydroxypropyl ester.
- triols examples include trimethylolethane, trimethylolpropane or glycerol.
- Suitable higher-functional alcohols are di-(trimethylolpropane), pentaerythritol, dipentaerythritol or sorbitol.
- the polyol component is a difunctional polyether, polyester or a polyether-polyester-block-copolyester or a polyether-polyester-block copolymer with primary OH functions.
- amines are ethylenediamine, propylenediamine, diaminocyclohexane, 4,4'-dicyclohexylmethanediamine, isophoronediamine (IPDA), difunctional polyamines such as Jeffamine®, amine-terminated polymers, in particular with number-average molar masses ⁇ 10,000 g/mol. Mixtures of the above amines can also be used.
- alll) amino alcohols as isocyanate-reactive compounds.
- suitable amino alcohols are the isomeric aminoethanols, the isomeric aminopropanols, the isomeric aminobutanols and the isomeric aminohexanoie or any mixtures thereof.
- the isocyanate-reactive compounds alll have a number-average molar mass of ⁇ 200 and ⁇ 10,000 g/mol, more preferably ⁇ 500 and ⁇ 8,000 g/mol and very particularly preferred ⁇ 800 and ⁇ 5,000 g/mol.
- the OH functionality of the polyols is preferably from 1.5 to 6.0, particularly preferably from 1.8 to 4.0.
- the prepolymers of the polyisocyanate component a1) can in particular have a residual content of free monomeric di- and triisocyanates of ⁇ 1% by weight, particularly preferably ⁇ 0.5% by weight and very particularly preferably ⁇ 0.3% by weight.
- the polyisocyanate component a1) may contain all or part of an organic compound whose NCO groups have been reacted in whole or in part with blocking agents known from coating technology.
- blocking agents are alcohols, lactams, oximes, malonic esters, pyrazoles and amines, such as butanone oxime, diisopropylamine, diethyl malonate, acetoacetic ester, 3,5-dimethylpyrazole, ⁇ -caprolactam or mixtures thereof.
- the polyisocyanate component a1) comprises compounds with aliphatically bonded NCO groups, aliphatically bonded NCO groups being understood as meaning groups which are bonded to a primary carbon atom.
- the isocyanate-reactive component all) preferably comprises at least one organic compound which has on average at least 1.5 and preferably 2 to 3 isocyanate-reactive groups. In the context of the present invention, hydroxy, amino or mercapto groups are preferred as isocyanate-reactive groups.
- the isocyanate-reactive component can in particular comprise compounds which have on average at least 1.5 and preferably 2 to 3 isocyanate-reactive groups.
- Suitable polyfunctional, isocyanate-reactive compounds of component all) are the compounds alll) described above.
- the substance catalyzing the polyurethane formation comes from the group of tin-based organyls, or one based on iron(II), iron(III), gallium(III), bismuth(III), vanadium (III), vanadium(IV), terbium(III), tin(II), zinc(II), zirconium(IV) complex with suitable mono- or bidentate ligands.
- the writing monomer b) can be any writing monomer that one skilled in the art would select for the photopolymer composition of the present invention.
- the writing monomer b) preferably comprises or consists of at least one monofunctional and/or one multifunctional writing monomer. More preferably, the writing monomer b) can comprise or consist of at least one monofunctional and/or one multifunctional (meth)acrylate writing monomer. Very particularly preferably, the writing monomer can comprise or consist of at least one monofunctional and/or one multifunctional urethane (meth)acrylate.
- Suitable acrylate writing monomers are, in particular, compounds of the general formula (III) where m ⁇ 1 and m ⁇ 4 and R 5 is a linear, branched, cyclic or heterocyclic unsubstituted or optionally substituted with heteroatoms organic radical and / or R 6 is hydrogen, a linear, branched, cyclic or heterocyclic unsubstituted or optionally also with Heteroatom-substituted organic radical.
- R 6 8 is particularly preferably hydrogen or methyl and/or R 5 is a linear, branched, cyclic or heterocyclic organic radical which is unsubstituted or optionally also substituted with heteroatoms.
- esters of acrylic acid or methacrylic acid are referred to as acrylates or methacrylates.
- acrylates and methacrylates that can preferably be used are phenyl acrylate, phenyl methacrylate, phenoxyethyl acrylate, phenoxyethyl methacrylate, phenoxyethoxyethyl acrylate, phenoxyethoxyethyl methacrylate, phenylthioethyl acrylate, phenylthioethyl methacrylate, 2-naphthyl acrylate, 2-naphthyl methacrylate, 1,4-bis-(2-thionaphthyl)-2-butyl acrylate, l ,4-bis-(2-thionaphthyl)-2-butyl methacrylate, bisphenol A diacrylate, bisphenol A dimethacrylate, and their ethoxylated analogues or N-
- urethane acrylates are understood as meaning compounds having at least one acrylic acid ester group and at least one urethane bond. Such compounds can be obtained, for example, by reacting a hydroxy-functional acrylate or methacrylate with an isocyanate-functional compound.
- isocyanate-functional compounds that can be used for this purpose are monoisocyanates and the monomeric diisocyanates, triisocyanates and/or polyisocyanates mentioned under a1).
- suitable monoisocyanates are phenyl isocyanate, the isomeric methylthiophenyl isocyanates.
- Di-, tri- or polyisocyanates are mentioned above, as well as triphenylmethane-4,4',4"-triisocyanate and tris(p-isocyanatophenyl)thiophosphate or their derivatives with urethane, urea, carbodiimide, acylurea, isocyanurate , allophanate, biuret, oxadiazinetrione, uretdione, iminooxadiazine dione structure, and mixtures thereof.
- Aromatic di-, tri- or polyisocyanates are preferred.
- hydroxy-functional acrylates or methacrylates for the production of urethane acrylates are compounds such as 2-hydroxyethyl (meth)acrylate, polyethylene oxide mono(meth)acrylates, polypropylene oxide mono(meth)acrylates, polyalkylene oxide mono(meth)acrylates, poly( ⁇ -caprolactone)- mono(meth)acrylates, such as Tone® M100 (Dow, Schwalbach, DE), 2-hydroxypropyl (meth)acrylate, 4-hydroxybutyl (meth)acrylate, 3-hydroxy-2,2-dimethylpropyl (meth)acrylate, Hydroxypropyl (meth)acrylate, acrylic acid (2-hydroxy-3-phenoxypropyl ester), the hydroxy-functional mono-, di- or tetraacrylates of polyhydric alcohols such as trimethylolpropane, glycerol, pentaerythritol, dipentaerythritol, ethoxylated, propoxylated or al
- the known hydroxyl-containing epoxy (meth)acrylates with OH contents of 20 to 300 mg KOH/g or hydroxyl-containing polyurethane (meth)acrylates with OH contents of 20 to 300 mg KOH/g or acrylated polyacrylates can also be used with OH contents of 20 to 300 mg KOH/g and mixtures thereof with one another and mixtures with hydroxyl-containing unsaturated polyesters and mixtures with polyester (meth)acrylates or mixtures of hydroxyl-containing unsaturated polyesters with polyester (meth)acrylates.
- urethane acrylates obtainable from the reaction of tris(p-isocyanatophenyl)thiophosphate and/or m-methylthiophenyl isocyanate with alcohol-functional acrylates such as hydroxyethyl (meth)acrylate, hydroxypropyl (meth)acrylate and/or hydroxybutyl (meth)acrylate or reaction Products of 2-isocyanatoethyl acrylate and/or 2-isocyanatoethyl methacrylate and/or 1,1-(bisacryloyloxymethyl)ethyl isocyanate with optionally substituted naphthols.
- alcohol-functional acrylates such as hydroxyethyl (meth)acrylate, hydroxypropyl (meth)acrylate and/or hydroxybutyl (meth)acrylate or reaction Products of 2-isocyanatoethyl acrylate and/or 2-isocyanatoethyl methacrylate and/or 1,1-(bisacrylo
- the writing monomer may contain other unsaturated compounds such as ⁇ , ⁇ -unsaturated carboxylic acid derivatives such as maleates, fumarates, maleimides, acrylamides, vinyl ethers, propenyl ethers, allyl ethers and compounds containing dicyclopentadienyl units, and olefinically unsaturated compounds such as e.g. styrene, ⁇ -methyl styrene, vinyl toluene and / or olefins, comprises or consists of.
- unsaturated carboxylic acid derivatives such as maleates, fumarates, maleimides, acrylamides, vinyl ethers, propenyl ethers, allyl ethers and compounds containing dicyclopentadienyl units
- olefinically unsaturated compounds such as e.g. styrene, ⁇ -methyl styrene, vinyl toluene and / or olef
- the at least one photoinitiator system c) can be any photoinitiator system that a person skilled in the art would select for the photopolymer composition according to the invention.
- Photoinitiators of component c) are usually compounds which can be activated by actinic radiation and can trigger polymerization of the writing monomers.
- Photoinitiators can be divided into unimolecular (type I) and bimolecular (type II) initiators. Furthermore, depending on their chemical nature, they are divided into photoinitiators for free-radical, anionic, cationic or mixed types of polymerization.
- Type I photoinitiators for radical photopolymerization generate free radicals by unimolecular bond cleavage upon irradiation.
- type I photoinitiators are triazines, oximes, benzoin ethers, benzil ketals, bis-imidazoles, aroylphosphine oxides, sulfonium and iodonium salts.
- Type II photoinitiators for radical polymerization consist of a dye as a sensitizer and a coinitiator and undergo a bimolecular reaction when irradiated with light adapted to the dye. First, the dye absorbs a photon and transfers energy to the coinitiator from an excited state. This releases the polymerization-initiating radicals by electron or proton transfer or direct hydrogen abstraction.
- Type II photoinitiators are preferably used for the purposes of this invention. Such photoinitiator systems are described in principle in EP 0 223 587 A and preferably consist of a mixture of one or more dyes.
- Suitable dyes of component c1) which form a type II photoinitiator together with a compound of the formula (II), are the cationic dyes described in WO 2012062655 in combination with the anions just described there.
- Cationic dyes are preferably understood as meaning those of the following classes: acridine dyes, xanthene dyes, thioxanthene dyes, phenazine dyes, phenoxazine dyes, phenothiazine dyes, tri(het)arylmethane dyes--especially diamino and triamino(het )- arylnethane dyes, mono-, di-, tri- and pentamethine cyanine dyes, hemicyanine dyes, externally cationic merocyanine dyes, externally cationic neutrocyanine dyes, nulhnethyne dyes - especially naphtholactam dyes, streptocyanine dyes.
- Such dyes are, for example, in H. Bemeth in Ulhnann's Encyclopedia of Industrial Chemistry, Azine Dyes, Wiley-VCH Verlag, 2008, H. Bemeth in Ulhnann's Encyclopedia of Industrial Chemistry, Methine Dyes and Pigments, Wiley-VCH Verlag, 2008, T. Gessner , U. Mayer in Ulhnann's Encyclopedia of Industrial Chemistry, Triarylmethane and Diarylmethane Dyes, Wiley-VCH Verlag, 2,000.
- phenazine dyes particularly preferred are phenazine dyes, phenoxazine dyes, phenothiazine dyes, tri-(het)arylmethane dyes - especially diamino- and triamino(het)arylmethane dyes, mono-, di-, tri- and pentamethine cyanine dyes, hemicyanine - Dyes, null methine dyes - in particular naphtholactam dyes, streptocyanine dyes.
- cationic dyes are Astrazon Orange G, Basic Blue 3, Basic Orange 22, Basic Red 13, Basic Violet 7, Methylene Blue, New Methylene Blue, Azure A, 2,4-diphenyl-6-(4-methoxyphenyl)pyrylium, safianine O, Astraphloxine, Brilliant Green, Crystal Violet, Ethyl Violet and Thionine.
- Preferred anions (an) of the cationic dyes are in particular C 8 - to C 25 -alkanesulfonate, preferably C 13 - to C 25 -alkanesulfonate, C 3 - to C 18 -perfluoroalkanesulfonate, C 4 - to C 18 - perfluoroalkanesulfonate, the in the alkyl chain carries at least 3 hydrogen atoms, C 9 - to C 25 -alkanoate, C 9 - to C 25 -alkenoate, C 8 - to C 25 -alkyl sulfate, preferably C 13 - to C 25 -alkyl sulfate, C 8 - to C 25 - Alkenyl sulfate, preferably C 13 - to C 25 -alkenyl sulfate, C 3 - to C 18 -perfluoroalkyl sulfate, C 4 - to C 18 - per
- the anion An- of the dye has an AClogP in the range from 1 to 30, particularly preferably in the range from 1 to 12 and particularly preferably in the range from 1 to 6.5.
- the AClogP is based on J. Comput. help Mol. Des. 2005, 19, 453; Virtual Computational Chemistry Laboratory, http://www.vcclab.org.
- Suitable coinitiators of component cll) for a type II photoinitiator system are borate salts, especially triarylalkyl borate salts, which are described in WO 2015/055576.
- Other coinitiators can be pentacoordinate silicates or tertiary aromatic amines.
- the at least one non-photopolymerizable component d) can be any component d) that one skilled in the art would select for the photopolymer composition of the present invention. It is preferably provided that the photopolymer composition additionally contains urethanes as additives of component d), it being possible in particular for the urethanes to be substituted with at least one fluorine atom.
- the urethanes can preferably have the general formula (XVI) have in which o ⁇ land o ⁇ 8 and R 7 , R 8 and R 9 are linear, branched, cyclic or heterocyclic unsubstituted or optionally substituted with heteroatoms organic radicals and / or R 8 , R 9 are independently hydrogen, where preferably at least one of the radicals R 7 , R 8 , R 9 is substituted with at least one fluorine atom and particularly preferably R 7 is an organic radical with at least one fluorine atom.
- R 9 is particularly preferably a linear, branched, cyclic or heterocyclic organic radical which is unsubstituted or optionally also substituted by heteroatoms such as, for example, fluorine.
- R 201 is optional; when present is hydrogen, methyl, ethyl, propyl, butyl, benzyl or phenethyl,
- R 203 is methyl, ethyl, propyl, butyl, benzyl or phenethyl,
- R 202 is hydrogen, methyl or phenyl
- R 204 is hydrogen, methyl, ethyl, cyclohexyl, phenyl, tolyl, anisyl or chlorophenyl,
- a together with X 1 and X 2 and the carbon atom bonded in between is pyridin-2-ylene or pyridin-4-ylene, quinolin-2-ylene or quinolin-4-ylene, l,3-thiazol-2-ylene, l,3-thiazolin-2-ylene, benzothiazol-2-ylene, l,3,4-thiadizol-2-ylene, l,3-oxazolin-2-ylene, benzoxazol-2-ylene, imidazol-2-ylene, imidazolin-2-ylene, benzimidazol-2-ylene, pyrrolin-2-ylene, 1,3,4-triazol-2-ylene, 3-H-indol-2-ylene or quinoxalin-2-ylene, which is replaced by methyl , Ethyl, benzyl, methoxy, chlorine, cyano, nitro or methoxycarbonyl are substituted, in the case of imidazol-2
- the at least one dye has a structure of the formula (XVII), wherein R 201 and R 203 are each independently methyl, ethyl or benzyl, preferably
- R 202 is hydrogen, methyl or phenyl, preferably phenyl.
- the at least one dye present according to formula (I) or formula (XVII) has an organically substituted sulfonate as anion (An-).
- the at least one coinitiator is a triarylalkyl borate salt.
- the coinitiator contains a triarylalkyl borate of the formula (II), the triarylalkyl borates preferably having a calculated oxidation potential of between 1.16 V vs. SCE and 1.37 V vs. SCE in acetonitrile and wherein
- A is a methylene group or an arbitrarily substituted methine group which can optionally form a ring with up to 10 members with R 100 , preferably a methylene group,
- R 100 is hydrogen or a C 1 - to C 20 -alkyl, C 3 - to C 12 -alkyl, C 3 - to C 20 -alkenyl radical optionally substituted by hydroxy and/or alkoxy and/or acyloxy and/or halogen , C 3 - to C 20 -alkynyl, C 5 - to C 7 -cycloalkyl or C 7 - to C 13 -aralkyl radical,
- R 101 , R 102 , and R 103 each represent up to five independently selected radicals from C 1 - to C 10 -alkyl-, C 3 - to C 5 -alkenyl-, C 3 - to C 5 -alkynyl-, C C 5 - to C 7 -cycloalkyl or C 7 - to C 13 -aralkyl radical, halogen, cyano, trifluoromethyl, trichloromethyl, difluoromethyl, dichloromethyl, trifluoromethylthioyl, trichloromethylthioyl, C 1 -to C 4 -alkoxy, Trifluoromethoxy, trichloromethoxy, C 1 - to C 4 -alkylthioyl, thioyl, difluoromethoxy, difluoromethylthioyl, carboxyl, carbonyl, 2-, 3-, or 4-pyridyl, or aryl radicals substituted in any way, or hydrogen
- K + is any substituted organocation of valency n based on nitrogen, phosphorus, oxygen, sulfur, and/or iodine and n is 1, 2 or 3.
- A preferably represents a methylene group.
- R 100 is a C 1 - to C 20 -alkyl, C 3 - to C 12 -alkyl, C 5 - to C 7 - cycloalkyl or C 7 - to C 13 aralkyl radical and R 101 , R 102 and R 103 each represent one to two independently selected radicals from C 1 - to C 4 -alkyl, halogen, cyano, trifluoromethyl, C 1 -to C 4 - Alkoxy or any substituted aryl radicals or hydrogen. At least one radical selected from the radicals R 101 , R 102 and R 103 is preferably not hydrogen.
- At least one of the at least two radicals R 101 , two radicals R 102 and two radicals R 103 is preferably arranged in the meta position or para position to the B atom, particularly preferably in the para position.
- the two radicals are preferably in the meta position and para position to the B atom.
- A is preferably a methylene group.
- R 100 is C 3 - to C 5 -alkyl, where A is preferably a methylene group and at least one of R 101 , R 102 , and R 103 is one to two each , in the meta and/or para position, radicals selected independently from C 1 - to C 4 -alkyl radicals and halogen substituents, preferably at least R 102 and/or R 103 for halogen substituents selected independently from one another, halogen substituents in addition to halogen radicals such as Cl- Radical or F radical also trihaloalkyl radicals, especially trihalomethyl radicals and trihaloethyl radicals, especially trifluoromethyl radicals and trichloromethyl radicals fall.
- A is preferably a methylene group and at least one of R 101 , R 102 , and R 103 is one to two each , in the meta and/or para position, radicals selected independently from C 1 - to C 4 -alkyl radicals and halogen substitu
- R 100 is C 3 to C 12 alkyl and R 101 , R 102 , and R 103 are each independently one to two, in meta or radicals in the para position selected from the group consisting of C 1 - to C 4 -alkyl radicals and halogen substituents, preferably at least R 102 and/or R 103 for a halogen substituent.
- R 101 , two R 102 , and two R 103 each, the two radicals are preferably in the meta position and para position to the B atom.
- at least R 102 and/or R 103 is a halogen substituent.
- A is preferably a methylene group.
- R 100 is C 3 - to C 5 -alkyl, where A is preferably a methylene group and R 101 , R 102 , and R 103 are each one to two, in meta- and/or para position, independently selected radicals from C 1 - to C 4 -alkyl radicals and halogen substituents, preferably at least R 102 and/or R 103 halogen substituent.
- each K + is any organocation based on nitrogen, phosphorus, oxygen, sulfur, or iodine:
- the organocation K + of the triarylalkyl borate salt is a nitrogen- or phosphorus-based mono- or divalent cation, preferably a nitrogen-based mono- or divalent cation, most preferably a monovalent ammonium cation.
- the at least one coinitiator has an oxidation potential in a range between 1.20 V vs. SCE and 1.36 V vs. SCE in acetonitrile, preferably between 1.25 V vs. SCE and 1.35 V vs. SCE SCE and more preferably between 1.28 V vs. SCE and 1.34 V vs. SCE.
- K + is preferably an organocation of valency n based on nitrogen, such as ammonium ions, pyridinium ions, pyridazinium ions, pyrimidinium ions, pyrazinium ions, imidazolium ions, pyrrolidinium ions, which may contain further functional groups such as ethers, esters, amides in one or more side chains and/or carry carbamates and which can also be present in oligomeric or polymeric or bridging form.
- nitrogen such as ammonium ions, pyridinium ions, pyridazinium ions, pyrimidinium ions, pyrazinium ions, imidazolium ions, pyrrolidinium ions, which may contain further functional groups such as ethers, esters, amides in one or more side chains and/or carry carbamates and which can also be present in oligomeric or polymeric or bridging form.
- K + is preferably an organocation of valence n based on phosphorus, such as an optionally substituted tetraalkyl phosphonium, trialkyl aryl phosphonium, dialkyl diaryl phosphonium, alkyl triaryl phosphonium, or Tetraaryl phosphonium cation, which optionally has other functional groups such as carbonyls, amides in one or more side chains and/or carry carbamates and which can also be present in oligomeric or polymeric or bridging form.
- organocation of valence n based on phosphorus such as an optionally substituted tetraalkyl phosphonium, trialkyl aryl phosphonium, dialkyl diaryl phosphonium, alkyl triaryl phosphonium, or Tetraaryl phosphonium cation, which optionally has other functional groups such as carbonyls, amides in one or more side chains and/or carry carbamates and which can also be
- K + is also preferably an organocation of valence n based on oxygen, such as an substituted pyrylium cation, which can also be present in fused form, such as in the benzopyrylium, flavylium, or naphthoxanthenium cation, or a polymeric cation with the mentioned substitution patterns.
- an organocation of valence n based on oxygen such as an substituted pyrylium cation, which can also be present in fused form, such as in the benzopyrylium, flavylium, or naphthoxanthenium cation, or a polymeric cation with the mentioned substitution patterns.
- K + is also preferably an organocation of valence n based on sulfur, such as an onium compound of sulfur, the same or different optionally substituted C 4 - to C 14 -alkyl, C 6 - to C 10 - aryl, C 7 to C 12 arylalkyl or C 5 to C 6 cycloalkyl radicals and/or oligomeric or polymeric recurring connecting units to form sulfonium salts with 1 ⁇ n ⁇ 3, or such as thiopyrylium cations or polymeric cations with the mentioned substitution patterns.
- sulfur such as an onium compound of sulfur
- K + is furthermore preferably an organocation of valency n based on iodine, such as an onium compound of iodine, the same or different optionally substituted C 1 - to C 22 -alkyl, C 6 - to C 14 - Carry aryl, C 7 - to C 15 -arylalkyl or C 5 - to C 7 -cycloalkyl radicals and/or oligomeric or polymeric recurring connecting units to form iodonium salts with 1 ⁇ n ⁇ 3, or other polymeric cations with those mentioned substitution pattern.
- iodine such as an onium compound of iodine, the same or different optionally substituted C 1 - to C 22 -alkyl, C 6 - to C 14 - Carry aryl, C 7 - to C 15 -arylalkyl or C 5 - to C 7 -cycloalkyl radicals and/or oligomeric or polymeric recurring connecting units to form i
- the photoinitiator system c) can also contain a further coinitiator till), such as trichloromethyl initiators, iodonium salts, sulfonium salts, aryl oxide initiators, bisimidazole initiators, ferrocene initiators, oxime initiators, thiol initiators or peroxide initiators.
- a further coinitiator till such as trichloromethyl initiators, iodonium salts, sulfonium salts, aryl oxide initiators, bisimidazole initiators, ferrocene initiators, oxime initiators, thiol initiators or peroxide initiators.
- the type and concentration of the PIS must be adapted in a manner known to those skilled in the art. For example, see P.K.T. Oldring (Ed.), Chemistry & Technology of UV & EB Formulations For Coatings, Inks & Paints, Vol. 3, 1991, SITA Technology, London, pp. 61-328. It is very particularly preferred if the PIS comprises a combination of dyes whose absorption spectra at least partially cover the spectral range from 400 to 1200 nm, with at least one coinitiator tailored to the dyes.
- the photopolymer composition contains a suitable photoinitiator for at least two laser light colors selected from the wavelength range of 400-1200 nm. Finally, it is very particularly preferred if the photopolymer composition contains a suitable photoinitiator for each of the laser light colors.
- a further object of the present invention is a photopolymer containing a photopolymer composition, in particular comprising matrix polymers, a writing monomer and a photoinitiator system which additionally contains a compound of the formula (XVI).
- a photopolymer composition in particular comprising matrix polymers, a writing monomer and a photoinitiator system which additionally contains a compound of the formula (XVI).
- Another subject of the present invention relates to a layered structure containing at least the layers:
- a substrate layer A which may be part of a further layer structure
- a cover layer C which is optionally part of the further layer structure.
- Another subject of the present invention relates to a layered structure containing at least the layers:
- a substrate layer A which may be part of a further layer structure
- a cover layer C which is optionally part of the further layer structure.
- the photopolymer compositions can be used to produce holographic media in the form of a film.
- carrier A a layer of a material or material composite that is transparent to light in the visible and NIR spectral range (transmission greater than 85% in the wavelength range from 400 to 1200 nm) is coated in the dark on one or both sides with the photopolymer composition B and, if necessary, a cover layer C applied to the photopolymer layer or layers B.
- Preferred materials or material composites of the carrier are based on polycarbonate (PC), polyethylene terephthalate (PET), polybutylene terephthalate, polyethylene, polypropylene, cellulose acetate, cellulose hydrate, cellulose nitrate, cycloolefin polymers, polystyrene, polyepoxides, polysulfone, cellulose triacetate (CTA), polyamide, polymethyl methacrylate, polyvinyl chloride, polyvinyl butyral or polydicyclopentadiene or mixtures thereof. They are particularly preferably based on PC, PET and CTA. Material composites can be film laminates or coextrudates.
- Preferred composite materials are duplex and triplex films constructed according to one of the schemes A/B, A/B/A or A/B/C.
- PC/PET, PET/PC/PET and PC/TPU are particularly preferred.
- the materials or composite materials of the carrier can be made anti-adhesive, antistatic, hydrophobic or hydrophilic on one or both sides.
- the modifications mentioned serve the purpose that the photopolymer layer B can be detached from the carrier A without being destroyed.
- a modification of the side of the carrier facing away from the photopolymer layer B serves to make the media according to the invention specific meet mechanical requirements that are required, for example, when processing in roll laminators, especially in roll-to-roll processes.
- the carrier A is a layer of a material or material composite that is transparent to light in the visible and NIR spectral range (transmission greater than 85% in the wavelength range from 400 to 1200 nm) in the dark with the photopolymer composition B on one side by means of 2D printing and, if necessary, a Cover layer C on the photopolymer layers B or applied. All common inkjet technologies can be used. If appropriate, only the areas required for the function can be specifically printed with the photopolymer composition B.
- Preferred materials or material composites of the carrier are based on glass, silicon (in the form of the highly polished wafers known from semiconductor technology), polycarbonate (PC), polyethylene terephthalate (PET), polybutylene terephthalate, polyethylene, polypropylene, cellulose acetate, cellulose hydrate, cellulose nitrate, cycloolefin polymers, polystyrene, polyepoxides , polysulfone, cellulose triacetate (CTA), polyamide, polymethyl methacrylate, polyvinyl chloride, polyvinyl butyral or polydicyclopentadiene or mixtures thereof. They are particularly preferably based on PC, PET and CTA.
- Material composites can be film laminates or coextrudates.
- Preferred composite materials are duplex and triplex films constructed according to one of the schemes A/B, A/B/A or A/B/C.
- PC/PET, PET/PC/PET and PC/TPU are particularly preferred.
- the materials or composite materials of the carrier can be made anti-adhesive, antistatic, hydrophobic or hydrophilic on one or both sides.
- the modifications mentioned serve the purpose that the photopolymer layer B can be detached from the carrier A without being destroyed.
- a modification of the side of the carrier facing away from the photopolymer layer B serves to ensure that the media according to the invention meet special mechanical requirements which are required, for example, when processing in roll laminators, in particular in roll-to-roll processes.
- material composites of the type described above containing a photoexposed, preferably light-cured photopolymer layer B', so that duplex and triplex films are formed according to a scheme A/B', A/B'/A or A/B'/C comes.
- Holographic information can be imprinted in such holographic media.
- Holographic media can be processed into holograms by appropriate exposure processes for optical applications in the NIR and in the entire visible and near UV range (350-1500 nm).
- Holograms include all holograms that can be recorded using methods known to those skilled in the art. These include in-line (Gabor) holograms, off-axis holograms, Full-aperture transfer holograms, white-light transmission holograms ("rainbow holograms"), denisyuk holograms, off-axis reflection holograms, edge-lit holograms and holographic stereograms. Reflection holograms, denisyuk holograms, transmission holograms are preferred.
- Another object of the invention relates to a holographic medium that has been converted into a hologram, wherein the hologram is selected from the group consisting of a reflection, transmission, in-line, off-axis, full aperture, transfer , White light transmission, Denisyuk, off-axis reflection or edge-lit hologram and a holographic stereogram, preferably reflection, transmission or edge-lit hologram or a combination of at least two thereof, combinations of these hologram types or several holograms of the same type can be independently combined in the same volume of the holographic medium (multiplexing).
- the hologram is selected from the group consisting of a reflection, transmission, in-line, off-axis, full aperture, transfer , White light transmission, Denisyuk, off-axis reflection or edge-lit hologram and a holographic stereogram, preferably reflection, transmission or edge-lit hologram or a combination of at least two thereof, combinations of these hologram types or several holograms of the same type can be
- Possible optical Ffuunnkkttiioonneenn ddeerr holograms that can be produced with photopolymer compositions according to the invention correspond to the optical functions of light elements such as lenses, mirrors, deflecting mirrors, filters, diffusers, diffraction elements, diffusers, light guides (waveguides), light guides, projection screens and / or masks. Combinations of these optical functions can also be combined independently of one another in a hologram. These optical elements often exhibit frequency selectivity, depending on how the holograms were exposed and the dimensions of the hologram.
- Another subject matter of the invention relates to an optical display comprising a holographic medium according to the invention.
- holographic images or representations can also be produced using holographic media, such as for personal portraits, biometric representations in security documents, or generally of images or image structures for advertising, security labels, brand protection, branding, labels, design elements, decorations, illustrations, trading cards , images and the like, as well as images that can represent digital data, including in combination with the products presented above.
- Holographic images can have the impression of a three-dimensional image, but they can also represent image sequences, short films or a number of different objects, depending on the angle, the (also moving) light source etc. used to illuminate them. Due to these diverse design options, holograms, especially volume holograms, represent an attractive technical solution for the above application.
- Another subject of the invention relates to the use of a holographic medium according to the invention for the production of chip cards, ID documents, 3D images, product protection tags, labels, banknotes or holographic optical elements, in particular for optical displays or in media for the implementation of methods selected from the group consisting from eye tracking, sensing, LIDAR, augmented reality, head-mounted display and virtual reality applications, especially in the near infrared range and a combination of at least two of these.
- the holographic media can be used to record in-line, off-axis, full-aperture transfer, white-light transmissions, Denisyuk, off-axis reflections or edge-lit holograms and holographic stereograms, in particular for the production of optical elements, images or image representations become.
- Holograms are accessible from holographic media according to the invention by appropriate exposure.
- NCO value The specified NCO values (isocyanate content) were determined in accordance with DIN EN ISO 11909.
- the beam of a blue DPSS laser with the emission wavelength ⁇ in vacuum of 457 nm was converted into a parallel homogeneous beam with the help of the spatial filter (SF) and together with the collimation lens (CL).
- the final cross-sections of the signal and reference beam are determined by the iris diaphragms (I).
- the diameter of the iris aperture is 0.4 cm.
- the polarization dependent beam splitters (PBS) split the laser beam into two coherent beams with the same polarization.
- the power of the reference beam was set to 0.5 mW and the power of the signal beam to 0.65 mW via the ⁇ /2 plates.
- the performances were determined with the semiconductor detectors (D) with the sample removed.
- the angle of incidence ( ⁇ 0 ) of the reference beam is -22.0°
- the angle of incidence ( ⁇ 0 ) of the signal beam is 42.0°.
- the angles are measured from the sample normal to the beam direction. According to FIG. 1, therefore, ⁇ 0 has a negative sign and ⁇ 0 has a positive sign.
- the interference field of the two overlapping beams produced a lattice of light and dark fringes perpendicular to the bisector of the two beams incident on the sample (reflection hologram).
- the fringe spacing ⁇ also called the grating period, in the medium is ⁇ 225 nm (the refractive index of the medium is assumed to be ⁇ 1.504).
- HMT holographic media tester
- ⁇ 457 nm
- DPSS laser holographic media tester
- M mirror
- S shutter
- SF spatial filter
- CL collimator lens
- ⁇ /2 ⁇ /2 .latte
- PBS polarization-sensitive beam splitter
- D detector
- I iris diaphragm
- the written holograms were now read out in the following way.
- the shutter of the signal beam remained closed.
- the reference beam shutter was open.
- the iris diaphragm of the reference beam was closed to a diameter ⁇ 1 mm. This meant that for all angles of rotation ( ⁇ ) of the medium, the beam was always completely within the previously written hologram.
- the rotary table now covered the angle range from ⁇ min to ⁇ max with an angular increment of 0.05° under computer control.
- ⁇ is measured from the sample normal to the turntable reference direction.
- ⁇ recording is therefore 10°.
- the following applies to the interference field when writing (“recording”) the hologram: ⁇ 0 ⁇ 0 + ⁇ recording .
- ⁇ 0 is the semi-angle in the laboratory frame outside the medium and when writing the hologram:
- ⁇ 0 -32°.
- the powers of the beam transmitted in the zeroth order were measured by means of the corresponding detector D and the powers of the beam diffracted to the first order by means of the detector D.
- the diffraction efficiency resulted at each approached angle ⁇ as the quotient of:
- P D is the power in the diffracted beam detector and P T is the power in the transmitted beam detector.
- the Bragg curve which describes the diffraction efficiency ⁇ as a function of the rotation angle ⁇ , of the written hologram was measured using the method described above and stored in a computer. In addition, the intensity transmitted to the zeroth order versus the rotation angle ⁇ was also recorded and stored in a computer.
- the maximum diffraction efficiency (DE ⁇ max) of the hologram, i.e. its peak value, was determined at ⁇ reconstruction . It may have been necessary to change the position of the diffracted beam detector to determine this maximum value.
- the refractive index contrast ⁇ n and the thickness d of the photopolymer layer was now using the coupled wave theory (see; H. Kogelnik, The Bell System Technical Journal, Volume 48, November 1969, Number 9 page 2909 - page 2947) to the measured Bragg curve and the angle profile determined from the transmitted intensity. It should be noted that because of the shrinkage in thickness that occurs as a result of the photopolymerization, the stripe spacing ⁇ ' of the hologram and the orientation of the strips (slant) can deviate from the stripe spacing ⁇ of the interference pattern and its orientation.
- Hologram can be determined under the assumption that only thickness shrinkage takes place. Then follows: v is the lattice strength e, ⁇ is the detuning parameter and ⁇ ' the orientation (slant) of the refractive index grating that was written, ⁇ ' and ⁇ ' correspond to the angles ⁇ 0 and ⁇ 0 of the interference field when writing the hologram, but measured in the medium and for the grating of the Hologram valid (after thickness shrinkage), n is the mean refractive index of the photopolymer and was set to 1.504. ⁇ is the wavelength of the laser light in a vacuum.
- FIG. Figure 2 shows the measured transmitted power P T (right y-axis) as a solid line (here of example 27b) plotted against the angle detuning ⁇ , the measured diffraction efficiency ⁇ (left y-axis) plotted as filled circles against the angle detuning ⁇ (so far the finite size of the detector allowed) and the fitting of the Kogelnik theory as a dashed line (left y-axis).
- the Bragg curve of wide holograms (small d' ) is not fully captured by a ⁇ -scan , but only the central area, with suitable detector positioning. Therefore, the form of the transmitted intensity, which is complementary to the Bragg curve, is also used to adjust the layer thickness d'.
- FIG. 2 shows the Bragg curve ⁇ according to the coupled wave theory (dashed line), the measured diffraction efficiency (filled circles) and the transmitted power (solid black line) versus the angle detuning ⁇ .
- this procedure may have been repeated several times for different exposure times t on different media, in order to determine at which mean energy dose of the incident laser beam when writing the hologram DE goes into the saturation value.
- the powers of the partial beams were adjusted in such a way that the same power density is achieved in the medium at the angles ⁇ 0 and ⁇ 0 used.
- the Gibbs energies at 298 K of the ground state and the oxidized state were calculated as follows: First, the three-dimensional molecular geometry of the coinitiator, in particular the triarylalkyl borate, was generated with ChemDraw 3D and subjected to a conformer analysis. The conformers found were energetically minimized using the AMI force field and the obtained coordinates of the molecular geometries (usually only one conformer was obtained) were used to calculate the electronic energy.
- the electronic ground state was geometry-optimized in a suitable solvent (PCM approach for acetonitrile) and the absolute electronic energies of the optimized structures were determined and corrected for the influence of the solvent field (G 298 ). The optimized molecular geometry was then reduced by one electron and the absolute electronic energy - also calculated in acetonitrile (PCM method) - of the oxidized molecule was determined again (G 298 (oxidized)).
- the solvents and reagents used, as well as all bromine aromatics, were obtained from chemical retailers.
- the bromo aromatics may have been freshly distilled.
- Anhydrous solvents contain ⁇ 50 ppm water.
- Polyol 1 was prepared as described in WO2015091427 with an OH number of 56.8.
- Urethane acrylate 1 (phosphorothioyltris(oxybenzene-4,1-diylcarbamoyloxyethane-2,1-diyl)trisacrylate, [1072454-85-3]) was prepared as described in WO2015091427.
- Urethane acrylate 2 (2-( ⁇ [3-(methylsulfanyl)phenyl]carbamoyl ⁇ oxy)-ethylprop-2-enoate, [1207339-61-4]) was prepared as described in WO2015091427.
- Dye 1 (1,3,3-trimethyl-2-[2-(1-methyl-2-phenyl-1H-indol-3-yl)ethenyl]-3H-indoliumbis(2-ethylhexyl)sulfosuccinic acid ester)) was as described in WO 2012062655.
- Additive 1 (Bis(2,2,3,3,4,4,5,5,6,6,7,7-dodecafluoroheptyl)-(2,2,4-trimethylhexane-1,6-diyl)biscarbamate, [ 1799437-41-4]) was prepared as described in WO2015091427.
- Ferric trifluoroacetylacetonate [14526-22-8] is available from ABCR GmbH & Co. KG, Düsseldorf, Germany.
- Tinuvin® 400 UV absorber product of BASF SE, Ludwigshafen, Germany.
- cation 2 (N 1 ,N 22 -dihexadecyl-N 1 ,N 1 ,N 22 ,N 22 , 10, 10, 13-heptamethyl-7, 16-dioxo-3,6,17,20-tetraoxa-8, 15 -diazadocosan-1,22-diaminium dibromide) was prepared as described in WO 2018087064.
- the remainder of the bromoaromatic was added dropwise to the reaction solution in a solvent mixture consisting of dry toluene and dry THF (1:1, dilution of the total molarity to 0.4 M) in such a way that the reaction temperature did not exceed 45.degree.
- the reaction solution was refluxed until the magnesium had completely dissolved or for 1 hour.
- the reaction solution was cooled to room temperature and poured onto a mixture consisting of ice water and tetrabutylammonium bromide (1 eq.). The mixture was stirred for 1 hour and then the organic phase was separated off.
- the remainder of the bromoaromatic was added dropwise to the reaction solution in a solvent mixture consisting of dry toluene and dry THF (1.1:1, dilution of the total molarity to 0.7 M) in such a way that the reaction temperature did not exceed 45.degree.
- the reaction solution was stirred at RT for 1 h.
- the corresponding second bromoaromatic was then added dropwise to the mixture, initially undiluted, until the onset of exothermic signaled the start of the reaction, but a maximum of 10% of the undiluted bromoaromatic was used for this purpose.
- the remainder of the bromoaromatic was again added dropwise to the reaction solution in the remaining solvent mixture consisting of dry toluene and dry THF (1.1:1, dilution of the total molarity to 0.4 M) in such a way that the reaction temperature did not exceed 45.degree.
- the reaction solution was refluxed until the magnesium had completely dissolved or for 1 hour.
- the reaction solution was cooled to room temperature and poured onto a mixture consisting of ice water and tetrabutylammonium bromide (1 eq.). The mixture was stirred for 1 hour and the organic phase separated.
- the organic phase was washed with water until a halide test (HNO 3 (aq., 10%)+AgNO 3 ) was negative.
- the solvents were removed in vacuo on a rotary evaporator and the crude product was recrystallized from methanol.
- This solution was applied to a 60 ⁇ m thick TAC film in a roll-to-roll coating system in the dark and applied using a doctor blade in such a way that a wet film thickness range of 12-14 ⁇ m was achieved.
- the coated film was dried at a drying temperature of 120° C. and a drying time of 4 minutes and then protected with a 40 ⁇ m thick polyethylene film. This film was then packaged in a light-tight manner.
- 3-Fluorobromobenzene was reacted with diisopropylhexyl borate in accordance with the general preparation instructions for tetrabutylammonium triarylhexyl borates with R 101 ⁇ R 102 ⁇ R 103 .
- a photopolymer with 7V-benzyl-N,N-dimethylhexadecylammonium tri-(3-fluorophenyl)hexylborate as coinitiator was produced in accordance with the general production instructions for photopolymer films.
- a photopolymer with N-benzyl-N,N-dimethylhexadecylammonium-3-chlorophenyldi-(3-fluorophenyl)hexylborate as a coinitiator was produced in accordance with the general production instructions for photopolymer films.
- a photopolymer with tetrabutylammonium tri-(3-chlorophenyl)hexylborate as a coinitiator was produced in accordance with the general production instructions for photopolymer films.
- a photopolymer with N-benzyl-A,N-dimethylhexadecylammonium tri-(3-chlorophenyl)hexylborate as a coinitiator was prepared in accordance with the general manufacturing instructions for photopolymer films.
- a photopolymer with N,N-dimethyl-N-(3-phenylpropyl)hexadecylammonium tri-(3-chlorophenyl)hexylborate as a coinitiator was produced in accordance with the general production instructions for photopolymer films.
- a photopolymer with tributyltetradecylphosphonium tri-(3-chlorophenyl)hexylborate as a coinitiator was prepared in accordance with the general manufacturing instructions for photopolymer films.
- 3-Chlorobromobenzene was reacted with diisopropylbutyl borate according to the general preparation instructions for tetrabutylammonium triarylbutyl borates with R 101 ⁇ R 102 ⁇ R 103 .
- a photopolymer with N-benzyl-N,N-dimethylhexadecylammonium tri-(3-chlorophenyl)butylborate as a coinitiator was produced in accordance with the general production instructions for photopolymer films.
- a photopolymer with N-benzyl-N,N-dimethylhexadecylammonium di-(3-chlorophenyl)-3-fluorophenylhexylborate as a coinitiator was prepared in accordance with the general manufacturing instructions for photopolymer films.
- a photopolymer with N-benzyl-N,N-dimethylhexadecylammonium tri-(3-chloro-4-methylphenyl)hexylborate as a coinitiator was produced in accordance with the general production instructions for photopolymer films.
- a photopolymer with N-benzyl-N,N-dimethylhexadecylammonium tri-(4-trifluoromethoxy-phenyl)dodecylborate as a coinitiator was produced in accordance with the general production instructions for photopolymer films.
- a photopolymer with N,N-dimethyl-N-(3-phenylpropyl)hexadecylammonium tri-(4-trifluoromethylphenyl)hexylborate as a coinitiator was prepared in accordance with the general manufacturing instructions for photopolymer films.
- the oxidation potential of various trialkylaryl borates according to the invention and not according to the invention was calculated using the above-mentioned method for calculating the oxidation potential of triarylalkyl borates using the software package GAMESS (G. MJ. Barca, C. Bertoni, L. Carrington, Datta D, De Silva N, Deustua JE, Fedorov DG, Gour JR, Gunina AO, Guidez E, Harville T.
- GAMESS G. MJ. Barca, C. Bertoni, L. Carrington, Datta D, De Silva N, Deustua JE, Fedorov DG, Gour JR, Gunina AO, Guidez E, Harville T.
- the radical designations R 100 from Table 1 correspond to the radical AR 100 in formula (II)
- the radicals R 101 , R 102 and R 103 on the aromatic compound from Table 1 each correspond to the radical or radicals R 101 , R 102 and R 103 from formula (II), as listed in the following table la.
- the requirements for the photopolymer films created here are both a low loss of performance in photoactivity after a tempering step and complete bleachability of the
- Photopolymer film after holographic exposure This has been verified as follows: First, two samples were prepared identically for each example. The preparation involves first removing the liner of the photopolymer laminate and consequently laminating the resulting unprotected side of the photopolymer to a sheet of glass such that there is a glass-photopolymer substrate-lamina respectively. A transmission spectrum (T 1,RT ) was recorded directly from one of these samples, later referred to as a room temperature sample (RT ), without temperature control. The second sample, later referred to as the tempering sample (Temp), was tempered in a drying cabinet at 140° C. for 30 min. After the tempering step, a transmission spectrum (T 1,Temp ) was also recorded from the sample.
- T 1,RT room temperature sample
- Temp tempering sample
- Thermostability evaluated according to transmission loss TS(T) The ratio of the transmission at the absorption maximum of the dye used (here 510 nm) after the tempering step of the Temp sample T 1, Temp, 510 to the transmission of the RT sample at the same wavelength T 1,RT,510 must be greater than 50%.
- the transmission values must be corrected for the background absorption caused by turbidity or similar (here the transmission at 730 nm is used as a reference value) (T 2, Temp, 730 ):
- TI.RT.510 Transmission of the RT sample at 510 nm
- Ti,Temp,5io Transmission of the Temp sample at 510 nm
- T2.Temp.730 background transmission determined at 730 nm
- TS(T) evaluation of thermal stability after loss of transmission
- TS(An) Evaluation of the thermostability according to An
- B(T) Evaluation of the bleachability after residual transmission.
- the non-inventive examples NEB1, NEB2 and NEB3 fail in at least one required property and are therefore unsuitable for providing the required properties.
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2023
- 2023-02-15 CN CN202380022998.2A patent/CN118742959A/zh active Pending
- 2023-02-15 WO PCT/EP2023/053804 patent/WO2023156482A1/de active Application Filing
- 2023-02-15 KR KR1020247027485A patent/KR20240153984A/ko unknown
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