EP3710511A1 - Copolymere a blocs presentant des resistances ameliorees a l'abrasion et a la dechirure - Google Patents
Copolymere a blocs presentant des resistances ameliorees a l'abrasion et a la dechirureInfo
- Publication number
- EP3710511A1 EP3710511A1 EP18827158.9A EP18827158A EP3710511A1 EP 3710511 A1 EP3710511 A1 EP 3710511A1 EP 18827158 A EP18827158 A EP 18827158A EP 3710511 A1 EP3710511 A1 EP 3710511A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- copolymer
- block
- polycarbodiimide
- blocks
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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- 230000001747 exhibiting effect Effects 0.000 title 1
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- 239000004952 Polyamide Substances 0.000 claims abstract description 55
- 229920002647 polyamide Polymers 0.000 claims abstract description 55
- 150000001732 carboxylic acid derivatives Chemical group 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- -1 polydimethylsiloxane Polymers 0.000 claims description 62
- 239000000203 mixture Substances 0.000 claims description 29
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- BJZYYSAMLOBSDY-QMMMGPOBSA-N (2s)-2-butoxybutan-1-ol Chemical compound CCCCO[C@@H](CC)CO BJZYYSAMLOBSDY-QMMMGPOBSA-N 0.000 claims description 11
- 229920000098 polyolefin Polymers 0.000 claims description 11
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- 239000000654 additive Substances 0.000 claims description 8
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- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
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- 241000288673 Chiroptera Species 0.000 claims description 2
- 241000909536 Gobiesocidae Species 0.000 claims description 2
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- 229920002614 Polyether block amide Polymers 0.000 description 57
- VPRUMANMDWQMNF-UHFFFAOYSA-N phenylethane boronic acid Chemical compound OB(O)CCC1=CC=CC=C1 VPRUMANMDWQMNF-UHFFFAOYSA-N 0.000 description 42
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- 238000009833 condensation Methods 0.000 description 10
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- 125000001931 aliphatic group Chemical group 0.000 description 8
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- 238000005259 measurement Methods 0.000 description 7
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- 229920000299 Nylon 12 Polymers 0.000 description 6
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 6
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 6
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 description 6
- 239000002994 raw material Substances 0.000 description 6
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- 239000002202 Polyethylene glycol Substances 0.000 description 5
- 230000009477 glass transition Effects 0.000 description 5
- 229920001519 homopolymer Polymers 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 150000003254 radicals Chemical class 0.000 description 5
- RNLHGQLZWXBQNY-UHFFFAOYSA-N 3-(aminomethyl)-3,5,5-trimethylcyclohexan-1-amine Chemical compound CC1(C)CC(N)CC(C)(CN)C1 RNLHGQLZWXBQNY-UHFFFAOYSA-N 0.000 description 4
- DZIHTWJGPDVSGE-UHFFFAOYSA-N 4-[(4-aminocyclohexyl)methyl]cyclohexan-1-amine Chemical compound C1CC(N)CCC1CC1CCC(N)CC1 DZIHTWJGPDVSGE-UHFFFAOYSA-N 0.000 description 4
- GLUUGHFHXGJENI-UHFFFAOYSA-N Piperazine Chemical compound C1CNCCN1 GLUUGHFHXGJENI-UHFFFAOYSA-N 0.000 description 4
- 125000003118 aryl group Chemical group 0.000 description 4
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 4
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 4
- 239000002243 precursor Substances 0.000 description 4
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 3
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- 235000011037 adipic acid Nutrition 0.000 description 3
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- 125000004427 diamine group Chemical group 0.000 description 3
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- 239000004094 surface-active agent Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 3
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- 230000007704 transition Effects 0.000 description 3
- HILAULICMJUOLK-UHFFFAOYSA-N 1,3-diethyl-5-methylbenzene Chemical compound CCC1=CC(C)=CC(CC)=C1 HILAULICMJUOLK-UHFFFAOYSA-N 0.000 description 2
- AFFLGGQVNFXPEV-UHFFFAOYSA-N 1-decene Chemical compound CCCCCCCCC=C AFFLGGQVNFXPEV-UHFFFAOYSA-N 0.000 description 2
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- GQEZCXVZFLOKMC-UHFFFAOYSA-N 1-hexadecene Chemical compound CCCCCCCCCCCCCCC=C GQEZCXVZFLOKMC-UHFFFAOYSA-N 0.000 description 2
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 2
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- HFDVRLIODXPAHB-UHFFFAOYSA-N 1-tetradecene Chemical compound CCCCCCCCCCCCC=C HFDVRLIODXPAHB-UHFFFAOYSA-N 0.000 description 2
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- PFEOZHBOMNWTJB-UHFFFAOYSA-N 3-methylpentane Chemical compound CCC(C)CC PFEOZHBOMNWTJB-UHFFFAOYSA-N 0.000 description 2
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- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- 229920010126 Linear Low Density Polyethylene (LLDPE) Polymers 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229920002367 Polyisobutene Polymers 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- 229910002808 Si–O–Si Inorganic materials 0.000 description 1
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical class OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 description 1
- 229920010346 Very Low Density Polyethylene (VLDPE) Polymers 0.000 description 1
- 229920006099 Vestamid® Polymers 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 125000004423 acyloxy group Chemical group 0.000 description 1
- 150000001279 adipic acids Chemical class 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- OFHCOWSQAMBJIW-AVJTYSNKSA-N alfacalcidol Chemical compound C1(/[C@@H]2CC[C@@H]([C@]2(CCC1)C)[C@H](C)CCCC(C)C)=C\C=C1\C[C@@H](O)C[C@H](O)C1=C OFHCOWSQAMBJIW-AVJTYSNKSA-N 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 125000003342 alkenyl group Chemical group 0.000 description 1
- 229920005603 alternating copolymer Polymers 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 229920013640 amorphous poly alpha olefin Polymers 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 229920006318 anionic polymer Polymers 0.000 description 1
- 150000004984 aromatic diamines Chemical class 0.000 description 1
- 150000005840 aryl radicals Chemical class 0.000 description 1
- 150000001536 azelaic acids Chemical class 0.000 description 1
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- WXCZUWHSJWOTRV-UHFFFAOYSA-N but-1-ene;ethene Chemical compound C=C.CCC=C WXCZUWHSJWOTRV-UHFFFAOYSA-N 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 125000005518 carboxamido group Chemical group 0.000 description 1
- 150000007942 carboxylates Chemical group 0.000 description 1
- 150000001734 carboxylic acid salts Chemical class 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 229920006317 cationic polymer Polymers 0.000 description 1
- 210000004534 cecum Anatomy 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 229920006147 copolyamide elastomer Polymers 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 125000001651 cyanato group Chemical group [*]OC#N 0.000 description 1
- 238000007278 cyanoethylation reaction Methods 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- 125000002993 cycloalkylene group Chemical group 0.000 description 1
- XXKOQQBKBHUATC-UHFFFAOYSA-N cyclohexylmethylcyclohexane Chemical compound C1CCCCC1CC1CCCCC1 XXKOQQBKBHUATC-UHFFFAOYSA-N 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- YQLZOAVZWJBZSY-UHFFFAOYSA-N decane-1,10-diamine Chemical compound NCCCCCCCCCCN YQLZOAVZWJBZSY-UHFFFAOYSA-N 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 150000001993 dienes Chemical class 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000010017 direct printing Methods 0.000 description 1
- 229940069096 dodecene Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 125000001033 ether group Chemical group 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 235000019000 fluorine Nutrition 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 238000005227 gel permeation chromatography Methods 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- KWIUHFFTVRNATP-UHFFFAOYSA-N glycine betaine Chemical group C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 229920000140 heteropolymer Polymers 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 125000005191 hydroxyalkylamino group Chemical group 0.000 description 1
- 239000011872 intimate mixture Substances 0.000 description 1
- 125000001261 isocyanato group Chemical group *N=C=O 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- GYNNXHKOJHMOHS-UHFFFAOYSA-N methyl-cycloheptane Natural products CC1CCCCCC1 GYNNXHKOJHMOHS-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- XLDBGFGREOMWSL-UHFFFAOYSA-N n,n'-bis[2,6-di(propan-2-yl)phenyl]methanediimine Chemical compound CC(C)C1=CC=CC(C(C)C)=C1N=C=NC1=C(C(C)C)C=CC=C1C(C)C XLDBGFGREOMWSL-UHFFFAOYSA-N 0.000 description 1
- CMESPBFFDMPSIY-UHFFFAOYSA-N n,n'-diphenylmethanediimine Chemical group C1=CC=CC=C1N=C=NC1=CC=CC=C1 CMESPBFFDMPSIY-UHFFFAOYSA-N 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 210000000006 pectoral fin Anatomy 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 150000003017 phosphorus Chemical class 0.000 description 1
- 229920001921 poly-methyl-phenyl-siloxane Polymers 0.000 description 1
- 229920013639 polyalphaolefin Polymers 0.000 description 1
- 229920006396 polyamide 1012 Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920005606 polypropylene copolymer Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920000909 polytetrahydrofuran Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- 238000007430 reference method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 150000004756 silanes Chemical class 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229960005137 succinic acid Drugs 0.000 description 1
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 150000003573 thiols Chemical class 0.000 description 1
- 150000004764 thiosulfuric acid derivatives Chemical class 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/12—Polyester-amides
-
- 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
- C08F293/00—Macromolecular compounds obtained by polymerisation on to a macromolecule having groups capable of inducing the formation of new polymer chains bound exclusively at one or both ends of the starting macromolecule
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/48—Polymers modified by chemical after-treatment
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/02—Soles; Sole-and-heel integral units characterised by the material
- A43B13/04—Plastics, rubber or vulcanised fibre
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/40—Polyamides containing oxygen in the form of ether groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/44—Polyester-amides
Definitions
- the present invention relates to a novel rigid block copolymer polyamide PA and flexible blocks, such as polyether PE or polyester PES, allowing the manufacture of materials both resistant to abrasion and tear, more durable through a limitation of the residual deformation, while being easily recyclable.
- the present invention also relates to a method of manufacturing such a composition and its use in particular in the sports industry, especially footwear, especially for the manufacture of soles and especially soles of sports shoes.
- PA and polyether PE blocks (PEBA abbreviated copolymer in the present description), in particular those marketed by Arkema under the trade name Pebax®, have progressively become established in the field of high-end shoes. , in particular of sport, thanks to their mechanical properties and in particular their property of elastic return exceptional.
- the PEBA can be advantageously used in sports shoes as a type of "semi-rigid" (foot-ball, base-lease, ...) or flexible (jogging) to achieve directly the inner sole (damping) and / or the outsole (abrasion-stiffness resistance).
- PEBA-based substrates of the prior art systems are far from optimal.
- a tear strength of 41 kN / m measured according to ISO 34-1: 2015 is best obtained.
- shoe manufacturers impose a tear strength of at least 45 kN / m, preferably at least 50 kN / m, or even at least 60 kN / m.
- the abrasion is such that the mass loss measured according to the ISO 9352: 2012 standard is greater than 55 mg.
- the present invention therefore aims to provide a block copolymer with improved properties of abrasion resistance and tear resistance.
- the present invention also aims to provide a copolymer of lower tensile deformation in accordance with ISO 527-1A: 2012, that is to say a lower percentage of residual deformation, to allow a better durability of the material. copolymer.
- Another object of the present invention is to provide materials that are both durable and recyclable, two generally contradictory requirements in the field of elastomeric thermoplastic materials.
- the Applicant has now developed a new type of block copolymer, which has improved abrasion resistance, tear resistance, and durability, while retaining excellent recyclability properties.
- the percentages expressed are percentages by mass. Unless otherwise stated, the parameters referred to are measured at atmospheric pressure, and ambient temperature (20-25 ° C, usually 23 ° C).
- the invention therefore relates to a rigid block copolymer polyamide PA and flexible blocks, characterized in that it comprises at least one carboxylic acid end chain blocked by a polycarbodiimide.
- the copolymer with rigid polyamide blocks PA and flexible blocks thus defined according to the invention is part of the elastomeric thermoplastic polymers.
- the term "thermoplastic elastomer polymer”, abbreviated "TPE”, refers to a polymer which constitutes a multiphase material having at least two transitions, namely a first transition at a temperature T1 (generally it is the glass transition temperature) and a second transition at a temperature T2 greater than T1 (usually this is the melting point). At a temperature below T1, the material is rigid, between T1 and T2 it has an elastic behavior, and above T2 it is melted.
- TPE thermoplastic elastomer polymer
- thermoplastic elastomer based on polyamide (TPE-A) within the meaning of the invention, such as a PEBA, is a block copolymer comprising a series of blocks, alternately rigid or hard (BD) and soft or soft (BM), according to the following general formula:
- BD or hard block or rigid block represents a block comprising polyamide (homopolyamide or copolyamide) or a mixture of blocks comprising polyamide (homopolyamide or copolyamide), hereinafter abbreviated independently PA or BD block;
- BM or Soft Block or soft block represents a block based on polyether (PE block), polyester (PES block), polydimethylsiloxane (PDMS block), polyolefin (PO block), polycarbonate (PC block) and / or any other polymer with a low glass transition temperature, or their mixtures in the form of alternating, random or block copolymers.
- PE block polyether
- PET block polyester
- PDMS block polydimethylsiloxane
- PO block polyolefin
- PC block polycarbonate
- BM is a polyether block having alkylene oxide units, in whole or in part.
- n represents the number of repeating units of the -BD-BM- unit of said copolymer n is in the range of 1 to 60, preferably 5 to 30, more preferably 6 to 20.
- low glass transition temperature for a polymer used in the composition of a BM within the meaning of the invention is meant a glass transition temperature Tg of less than 15 ° C., preferably less than 0 ° C., preferably less than 0 ° C. -15 ° C, preferably less than -30 ° C.
- said rrou block may be based on PEG molar mass in a number equal to 1500g / mol and Tg of the order of - 35 ° C.
- Said glass transition temperature Tg may also be less than -50 ° C., especially in the case where said soft block is based on PTMG.
- Amide block copolymers also called polyether block copolymers and polyamide blocks, abbreviated as "PEBA" result from the polycondensation of polyamide blocks with reactive ends with polyether blocks with reactive ends, such as, inter alia:
- polyamide blocks with dicarboxylic chain ends with polyoxyalkylene blocks with diamine chain ends obtained by cyanoethylation and hydrogenation of polyoxyalkylene aliphatic alpha-omega dihydroxylated blocks called polyetherdiols;
- the polyamide blocks with dicarboxylic chain ends come, for example, from the condensation of polyamide precursors in the presence of a chain-limiting dicarboxylic acid.
- the polyamide blocks with diamine chain ends come for example from the condensation of polyamide precursors in the presence of a chain-limiting diamine.
- the molar mass in number Mn of the polyamide blocks is between 400 and 20000 g / mol and preferably between 500 and 10000 g / mol.
- Polymers with polyamide blocks and polyether blocks may also comprise randomly distributed units.
- Three types of polyamide blocks can advantageously be used.
- the polyamide blocks come from the condensation of a dicarboxylic acid, in particular those having from 4 to 20 carbon atoms, preferably those having from 6 to 18 carbon atoms and an aliphatic or aromatic diamine, in particular those having 2 to 20 carbon atoms, preferably those having 6 to 14 carbon atoms.
- dicarboxylic acids examples include 1,4-cyclohexyldicarboxylic acid, butanedioic, adipic and azelaic acids. suberic, sebacic, dodecanedicarboxylic, octadecanedicarboxylic and terephthalic and isophthalic acids, but also dimerized fatty acids.
- diamines examples include tetramethylenediamine, hexamethylenediamine, 1,10-decamethylenediamine, dodecamethylenediamine, trimethylhexamethylenediamine, the isomers of bis (4-aminocyclohexyl) methane (BACM), bis - (3-methyl-4-aminocyclohexyl) methane (BMACM), and 2-2-bis- (3-methyl-4-aminocyclohexyl) -propane (BMACP), and para-amino-di-cyclohexyl-methane ( PACM), and isophoronediamine (IPDA), 2,6-bis- (aminomethyl) -norbornane (BAMN) and piperazine (Pip).
- BCM bis (4-aminocyclohexyl) methane
- BMACM bis - (3-methyl-4-aminocyclohexyl) methane
- BMACP 2-2-
- the standard NF EN ISO 1874-1: 201 1 defines a nomenclature of polyamides.
- the term "monomer” in the present description should be understood as “repetitive unit”.
- the case where a repeating unit of the polyamide consists of the combination of a diacid with a diamine is particular. It is considered that it is the combination of a diamine and a diacid, that is to say the “diaminediacid” pair, also called “XY”, in equimolar quantity which corresponds to the monomer. This is explained by the fact that, individually, the diacid or the diamine is only a structural unit, which is not enough on its own to polymerize.
- the polyamide blocks result from the condensation of one or more alpha omega-aminocarboxylic acids and / or one or more lactams having from 6 to 12 carbon atoms in the presence of a dicarboxylic acid having from 4 to 12 carbon atoms or a diamine.
- lactams include caprolactam, oenantholactam and lauryllactam.
- alpha omega amino carboxylic acid there may be mentioned aminocaproic acid, amino-7-heptanoic acid, amino-1 1-undecanoic acid and amino-12-dodecanoic acid.
- the polyamide blocks of the second type are made of polyamide 11, polyamide 12 or polyamide 6.
- the polyamide blocks result from the condensation of at least one alpha omega aminocarboxylic acid (or a lactam), at least one diamine and at least one dicarboxylic acid.
- the polyamide PA blocks are prepared by polycondensation:
- comonomer (s) ⁇ Z ⁇ chosen from lactams and alpha-omega aminocarboxylic acids having Z carbon atoms and equimolar mixtures of at least one diamine having X 1 carbon atoms and at least one dicarboxylic acid having Y 1 carbon atoms, (X1, Y1) being different from (X, Y);
- said one or more comonomers ⁇ Z ⁇ being introduced in a proportion by weight of up to 50%, preferably up to 20%, even more advantageously up to 10% relative to all the polyamide precursor monomers;
- the dicarboxylic acid having Y carbon atoms which is introduced in excess with respect to the stoichiometry of the diamine or diamines, is used as chain limiter.
- the polyamide blocks result from the condensation of at least two alpha omega aminocarboxylic acids or at least two lactams having from 6 to 12 carbon atoms or a lactam and an aminocarboxylic acid. not having the same number of carbon atoms in the possible presence of a chain limiter.
- alpha omega amino carboxylic acid mention may be made of aminocaproic acid, amino-7-heptanoic acid, amino-1 1 -undecanoic acid and amino-12-dodecanoic acid.
- lactam mention may be made of caprolactam, oenantholactam and lauryllactam.
- aliphatic diamines there may be mentioned hexamethylenediamine, dodecamethylenediamine and trimethylhexamethylenediamine.
- cycloaliphatic diacids mention may be made of 1,4-cyclohexyldicarboxylic acid.
- aliphatic diacids By way of example of aliphatic diacids, mention may be made of butanedioic acid, adipic acid, azelaic acid, suberic acid, sebacic acid, dodecanedicarboxylic acid or dimerized fatty acid (these dimerized fatty acids preferably have a dimer content of at least 98% preferably they are hydrogenated, they are sold under the trade name Pripol® by the company Unichema, or under the brand name Empol® by the company Henkel) and the polyoxyalkylenes-a, w diacids.
- aromatic diacids mention may be made of terephthalic (T) and isophthalic (I) acids.
- cycloaliphatic diamines By way of example of cycloaliphatic diamines, mention may be made of the isomers of bis (4-aminocyclohexyl) methane (BACM), bis (3-methyl-4-aminocyclohexyl) methane (BMACM), and 2- (2-bis) - (3-methyl-4-aminocyclohexyl) propane (BMACP), and para-amino-di-cyclohexyl methane (PACM).
- BMACP bis (4-aminocyclohexyl) methane
- BMACP 2- (2-bis) - (3-methyl-4-aminocyclohexyl) propane
- PAM para-amino-di-cyclohexyl methane
- IPDA isophoronediamine
- BAMN 2,6-bis (aminomethyl) norbornane
- PA blocks of PEBA according to the invention comprise at least two different monomers, called “co-monomers”, that is to say at least one monomer and at least one comonomer (monomer different from the first monomer) they comprise a copolymer such as an abbreviated copolyamide CoPA.
- co-monomers that is to say at least one monomer and at least one comonomer (monomer different from the first monomer) they comprise a copolymer such as an abbreviated copolyamide CoPA.
- polyamide blocks of the third type As examples of polyamide blocks of the third type, the following can be cited:
- 66/6 wherein 66 denotes hexamethylenediamine units condensed with adipic acid. 6 denotes patterns resulting from the condensation of caprolactam.
- 66/610/11/12 wherein 66 denotes hexamethylenediamine condensed with adipic acid. 610 denotes hexamethylenediamine condensed with sebacic acid. 1 1 denotes patterns resulting from the condensation of aminoundecanoic acid. 12 denotes patterns resulting from the condensation of lauryllactam.
- the mass Mn of the soft blocks is between 100 and 6000 g / mol and preferably between 200 and 3000 g / mol.
- the polymer comprises from 1 to 80% by weight of flexible blocks and from 20 to 99% by weight of polyamide blocks, preferably from 4 to 80% by weight of flexible blocks and from 20 to 96% by weight of polyamide blocks.
- the rigid polyamide block in the rigid block copolymer PA and flexible blocks according to the invention comprises at least one of the following polyamide units: 1 1, 12, 6, 610, 612, 1010, 1012, and mixtures or copolyamides thereof.
- the polyether PE blocks consist of alkylene oxide units. These patterns may be, for example, ethylene oxide units, propylene oxide or tetrahydrofuran (which leads to polytetramethylene glycol linkages).
- PEG (polyethylene glycol) blocks are used, ie those consisting of ethylene oxide units, PPG (propylene glycol) blocks, ie those consisting of propylene oxide units, P03G (polytrimethylene glycol) blocks. ) that is to say those consisting of glycol polytrimethylene ether units (such copolymers with polytrimethylene ether blocks are described in US6590065), and PTMG blocks, ie those consisting of tetramethylene glycol units also called polytetrahydrofuran.
- the PEBA copolymers may comprise in their chain several types of polyethers, the copolyethers may be block or statistical.
- the polyether blocks may also consist of ethoxylated primary amines.
- ethoxylated primary amines mention may be made of the products of formula:
- m and n are between 1 and 20 and x between 8 and 18.
- These products are commercially available under the trademark Noramox® from the company CECA and under the brand Genamin® from the company Clariant.
- the flexible polyether blocks may comprise polyoxyalkylene blocks with NH 2 chain ends, such blocks being obtainable by cyanoacetylation of aliphatic polyoxyalkylene aliphatic alpha-omega dihydroxy blocks known as polyether diols.
- Jeffamines e.g. Jeffamine® D400, D2000, ED 2003, XTJ 542, commercial products of Huntsman, also described in JP2004346274, JP2004352794 and EP1482011
- the polyetherdiol blocks are either used as they are and copolycondensed with polyamide blocks having carboxylic ends, or they are aminated to be converted into polyether diamines and condensed. with polyamide blocks with carboxylic ends.
- the general two-step preparation method for PEBA copolymers having ester bonds between PA blocks and PE blocks is known and is described, for example, in French patent FR2846332.
- the general method for preparing the PEBA copolymers of the invention having amide linkages between PA blocks and PE blocks is known and described, for example in European Patent EP1482011.
- the polyether blocks can also be mixed with polyamide precursors and a diacid chain limiter to make the polyamide block and polyether block polymers having statistically distributed units (one-step process).
- PEBA designation in the present description of the invention relates as well to Pebax® marketed by Arkema, Vestamid® marketed by Evonik®, Grilamid® marketed by EMS, Kellaflex® marketed by DSM or to any other PEBA from other suppliers.
- the PEBA copolymers have PA blocks PA 6, PA 11, PA 12, PA 612, PA 66/6, PA 1010 and / or PA 614, preferably PA 11 blocks and / or PA 12; and PE blocks made of PTMG, PPG and / or P03G.
- PEBAs based on PE blocks consisting mainly of PEG are to be included in the range of PEBA hydrophilic.
- PEBAs based on PE blocks consisting mainly of PTMG are to be included in the range of hydrophobic PEBA.
- said PEBA used in the composition according to the invention is obtained at least partially from bio-resourced raw materials.
- Raw materials of renewable origin or bio-resourced raw materials are materials that include biofouled carbon or carbon of renewable origin. In fact, unlike materials made from fossil materials, materials made from renewable raw materials contain 14 C.
- the "carbon content of renewable origin” or “bio-resourced carbon content” is determined according to the standards ASTM D 6866 (ASTM D 6866-06) and ASTM D 7026 (ASTM D 7026-04).
- PEBAs based on polyamide 1 1 come at least partly from bioprocessed raw materials and have a bio-resourced carbon content of at least 1%, which corresponds to an isotopic ratio of 12%.
- the PEBAs according to the invention comprise at least 50% by mass of bio-resourced carbon on the total mass of carbon, which corresponds to a 12 C / 14 C isotope ratio of at least 0.6 ⁇ 10 12 .
- This content is advantageously higher, especially up to 100%, which corresponds to a 12 C / 14 C isotopic ratio of 1.2 ⁇ 10 12 , in the case, for example, of PEBA with PA 1 1 blocks and PE blocks comprising P03G, PTMG and / or PPG from raw materials of renewable origin.
- PES polyester blocks are usually manufactured by polycondensation between a dicarboxylic acid and a diol.
- Suitable carboxylic acids include those mentioned above used to form the polyamide blocks with the exception of terephthalic and isophthalic acids.
- Suitable diols include linear aliphatic diols such as ethylene glycol, 1,3-propylene glycol, 1,4-butylene glycol, 1,6-hexylene glycol, branched diols such as neopentyl glycol, 3- methylpentane glycol, 1,2-propylene glycol, and cyclic diols such as 1,4-bis (hydroxymethyl) cyclohexane and 1,4-cyclohexane dimethanol.
- Polyesters are also understood to mean poly (caprolactone) and PES based on fatty acid dimers, in particular products from the PRIPLAST® range from Croda or Uniqema.
- Polysiloxane block within the meaning of the invention means any polymer or oligomer organized with a linear or cyclic structure, branched or crosslinked obtained by polymerization of functionalized silanes and essentially constituted by a pattern repetition. in which silicon atoms are connected to each other by oxygen atoms (siloxane bond Si-O-Si), optionally substituted hydrocarbon radicals being directly bonded via a carbon atom to said silicon atoms .
- hydrocarbon-based radicals are alkyl radicals, especially of C 1 -C 0 and in particular methyl, fluoroalkyl radicals, aryl radicals and in particular phenyl radicals, and alkenyl radicals and in particular vinyl radicals; other types of radicals that can be bonded either directly or via a hydrocarbon radical to the siloxane chain include hydrogen, halogens and in particular chlorine, bromine or fluorines, thiols, alkoxy radicals, polyoxyalkylene (or polyether) radicals, and in particular polyoxyethylene and / or polyoxypropylene radicals, hydroxyl or hydroxyalkyl radicals, substituted or unsubstituted amine groups, amide groups, acyloxy or acyloxyalkyl radicals, hydroxyalkylamino or aminoalkyl radicals, quaternary ammonium groups, amphoteric or betaine groups, anionic groups such as carboxylates, thioglycolates, sulfon
- said polysiloxane blocks comprise polydimethylsiloxane (hereinafter abbreviated PDMS blocks), polymethylphenylsiloxane, and / or polyvinylsiloxane.
- PDMS blocks polydimethylsiloxane
- polymethylphenylsiloxane polymethylphenylsiloxane
- polyvinylsiloxane polyvinylsiloxane
- Polyolefin block within the meaning of the invention means any polymer comprising as monomer an alpha-olefin, that is to say homopolymers of an olefin or copolymers of at least an alpha-olefin and at least one other copolymerizable monomer, the alpha-olefin preferably having from 2 to 30 carbon atoms.
- alpha-olefin By way of example of alpha-olefin, mention may be made of ethylene, propylene, 1-butene, 1-pentene, 3-methyl-1-butene, 1-hexene, 4-methyl-1-pentene, 3 - methyl-1-pentene, 1-octene, 1-decene, 1-dodecene, 1-tetradecene, 1-hexadecene, 1-octadecene, 1-eicocene, 1 -ococene, 1-tetracocene, 1-hexacocene, 1-octacocene , and 1-triacontene. These alpha-olefins can be used alone or as a mixture of two or more.
- LDPE low density polyethylene
- HDPE high density polyethylene
- LLDPE linear low density polyethylene
- VLDPE very low density polyethylene
- ethylene / alpha-olefin copolymers such as ethylene / propylene, EPR elastomers (ethylene-propylene rubber), and EPDM (ethylene-propylene-diene), and polyethylene blends with EPR or EPDM, styrene / ethylene-butene / styrene block copolymers (SEBS), styrene / butadiene / styrene (SBS), styrene / isoprene / styrene (SIS), and styrene / ethylene-propylene / styrene (SEPS),
- SEBS styrene / ethylene-butene / styrene block copolymers
- SBS styrene / butadiene / styrene
- SIS styrene / isoprene / styrene
- unsaturated carboxylic acid salts or esters such as, for example, alkyl (meth) acrylates, alkyl having up to 24 carbon atoms, vinyl esters of saturated carboxylic acids such as, for example, vinyl acetate or propionate, and dienes such as, for example, 1,4-hexadiene or polybutadiene.
- said at least one polyolefin block comprises polyisobutylene and / or polybutadiene.
- the block copolymer according to the invention comprises at least one flexible polyolefin block (PO block) and at least one hydrophilic hard block (hereinafter abbreviated BDh) comprising both polyamide and polyether, such as a polyetheramide block, a polyetheresteramide block, and / or a polyetheramideamide block, etc.
- Said PO block preferably comprises a polyolefin comprising acidic terminal groups, alcohols or amines.
- the PO block is obtained by thermal degradation of high molecular weight polyolefins to form polyolefins of lower mass and functionalized (reference method: Japanese Kokai Publication Hei-03-62804).
- the BDh block may further comprise at least one polymer chosen from: cationic polymers, of quaternary amine type and / or phosphorus derivatives; and / or anionic polymers, of modified diacid type, comprising a sulfonate group and capable of reacting with a polyol.
- the addition of organic salt can then be envisaged in the preparation of the BDh block or during the reaction between the block PO and the block BDh.
- Document US Pat. No. 5,552,131 describes the synthesis and the various possible structures for the PO block and BDh block copolymer, these being of course conceivable in the process according to the invention.
- PC block polvcarbonate block
- the aliphatic polycarbonates are described for example in DE2546534 and JP1009225. Such homopolymeric or copolymeric polycarbonates are also described in the US471203.
- Applications WO92 / 22600 and WO95 / 12629 disclose copolymers comprising polycarbonate blocks and their methods of synthesis. The blocks (and their synthesis) described in these documents are perfectly conceivable for the synthesis of a PC block copolymer according to the invention.
- the polycarbonate blocks of the copolymer according to the invention have the formula:
- R1 and R2 which may be the same or different, represent a straight or branched chain, aliphatic or alicyclic having 2 to 18 carbon atoms, or represent a polyoxyalkylene group or represent a polyester group.
- R 1 and R 2 are selected from hexylene, decylene, dodecylene, 1,4-cyclohexylene, 2,2-dimethyl, 3-propylene, 2,5-dimethyl-2,5-hexylene or polyoxyethylene are preferred.
- block copolymers described above generally comprise at least one polyamide rigid block and at least one flexible block
- present invention in fact covers all copolymers comprising two, three, four (or more) different blocks selected among those described in the present description, as long as at least one of these blocks is a polyamide block.
- the copolymer according to the invention comprises a segmented block copolymer comprising three different types of blocks (called “triblock” in the present description of the invention), which result from the condensation of several of the blocks described above.
- Said triblock is preferably chosen from copolyetheresteramides, copolyetheramideurethanes, in which:
- the polyamide rigid block mass percentage is greater than 10%
- the mass percentage of flexible blocks is greater than 20%
- the flexible block in the rigid block copolymer PA and soft blocks according to the invention comprises (and preferably is) a polyether PE block, preferably chosen from PTMG, PPG, P03G and / or PEG. .
- the flexible block in the rigid block copolymer PA and soft blocks according to the invention comprises (and preferably is) a polyester block P ES, chosen from polyesters diols, poly (caprolactone) and polyesters based on fatty acid dimers.
- the ratio by weight of the PA blocks on the soft blocks is in the range of 0.3 to 10, preferably of 0.3 to 6, preferably of 0.3 to 3. preferably from 0.3 to 2.
- Polycarbodiimides suitable for the present invention are represented by the following general formula:
- R is monovalent
- R' is divalent
- n is from 2 to 50, preferably from 2 to 45, preferably from 2 to 20, and preferably from 5 to 20.
- R may be, for example, C 1 -C 20 alkyl or C 3 -C 10 cycloalkyl or C 1 -C 20 alkenyl, and may be cyclic or branched, or may contain a C 8 -C 16 aromatic ring, and may be substituted by functional groups.
- R ' may be a divalent group corresponding to all the foregoing, for example C1-C20 alkylene, C3-C10 cycloalkylene, etc.
- functional groups include, but are not limited to, cyanato and isocyanato, halo, amido, carboxamido, amino, imido, imino, silyl, etc.
- R ' include, but are not limited to, divalent radicals derived from 2,6-diisopropylbenzene, naphthalene, 3,5-diethyltoluene, 4,4'-methylenebis (2,6-diethylenephenyl) ), 4,4'-methylenebis (2-ethyl-6-methylphenyl), 4,4'-methylenebis (2,6-diisopropylphenyl), 4,4'-methylenebis (2-ethyl-5) methylcyclohexyl), 2,4,6-triisopropylphenyl, n-hexane, cyclohexane, dicyclohexylmethane and methylcyclohexane, and the like.
- Patent documents US5130360, US5859166, US368493, US7456137 US2007 / 0278452, US2009 / 0176938, and in particular US5360888 still disclose other examples of polycarbodiimides.
- Suitable polycarbodiimides can be obtained from commercially available sources such as the Stabaxol P series from Rhein Chemie, the Stabilizer series from Raschig, and others from Ziko or Teijin, for example.
- the polycarbodiimide is chosen from a stabilizer, in particular Stabilizer® 9000 corresponding to Poly- (1,3,5-triisopropylphenylene-2,4-carbodiimide), a Stabaxol®, in particular a stabaxol® P, in particular Stabaxol® P100 or Stabaxol® P400, or a mixture thereof.
- a stabilizer in particular Stabilizer® 9000 corresponding to Poly- (1,3,5-triisopropylphenylene-2,4-carbodiimide
- Stabaxol® in particular a stabaxol® P, in particular Stabaxol® P100 or Stabaxol® P400, or a mixture thereof.
- the polycarbodiimide has a weight average molecular weight greater than 10,000 g / mol.
- the weight average molecular weight of the polycarbodiimide is in the range of 10,000 to 40,000 g / mol, preferably 15,000 to 30,000 g / mol.
- the weight average molecular weight of the polycarbodiimide used in the present invention is measured by gel permeation chromatography (G PC) in tetrahydrofuran (THF).
- the weight content of the polycarbodiimide is advantageously from 0.5 to 10% by weight, preferably from 0.5 to 7% by weight, preferably from 0.5 to 3% by weight, preferably from 0.5 to 2% by weight. , 5%, preferably from 0.5 to 2% by weight, relative to the total weight of copolymer according to the invention.
- said carboxylic acid of the copolymer according to the invention forms a urea bond by reaction with a carbodiimide of the polycarbodiimide.
- One of the advantages of the block copolymer at the end of a blocked acid chain according to the invention is that it remains in non-crosslinked linear form, the Mw / Mn dispersity of the copolymer being less than 3. This is surprising insofar as, in prior art, the carbodiimides are rather used to viscosify the polyamides (see for example the patent document FR3027907), in particular by crosslinking them, and for improving their resistance to hydrolysis as described in US5360888.
- the subject of the present invention is also the use, in a process for the manufacture of rigid polyamide PA block copolymers and flexible blocks, of said copolymer comprising at least one end of the carboxylic acid chain, of a polycarbodiimide for improving the extrudability of the copolymer, the stretching capacity of the copolymer, the abrasion resistance, the tear resistance and the durability of said copolymer, without increasing its dispersity,
- the polycarbodiimide has a weight average molecular mass greater than 10,000 g / mol, preferably in the range of 10,000 to 40,000 g / mol, preferably 15,000 to 30,000 g / mol. mol.
- At least one end of the carboxylic acid chain of the copolymer is blocked by a urea function formed by reaction with the polycarbodiimide.
- the subject of the present invention is also a composition based on a copolymer according to the invention, characterized in that it comprises:
- polyamides from 0.1 to 49% by weight of at least one other component chosen from polyamides, functional polyolefins, copolyetheresters, thermoplastic polyurethanes (TPU), copolymers of ethylene and vinyl acetate, copolymers of ethylene and acrylate, and copolymers of ethylene and alkyl (meth) acrylate,
- TPU thermoplastic polyurethanes
- additives chosen from nucleating agents, fillers, in particular mineral fillers, such as talc, reinforcement, especially of glass or carbon, dyes, UV absorbers, antioxidants, in particular phenolics, or phosphorus-based or sulfur-based, hindered amine light stabilizers or HALS, and mixtures thereof,
- the present invention also relates to a copolymer production process according to the invention, comprising the mixture of block copolymer as defined according to the invention and polycarbodiimide as defined above so that at least one end of the chain
- the carboxylic acid of the block copolymer reacts with the carbodiimide function of the polycarbodiimide to advantageously form a urea function.
- the mixture is produced by means of a single-screw or twin-screw extruder in order to achieve an intimate mixture of the copolymer and the polycarbodiimide in the melted process, and to allow the reaction between the acid function of the copolymer and the carbodiimide function of the polycarbodiimide.
- the mixing of the components can also be carried out by adding the polycarbodiimide during the synthesis of the block copolymer.
- the copolymer according to the invention may also be manufactured using a masterbatch comprising the block copolymer and the polycarbodiimide produced in the manner described above, and then diluting the masterbatch in the block copolymer during the implementation step. of the finished object.
- the present invention also relates to a shaped article, such as fiber, fabric, film, sheet, ring, tube, injected and / or extruded part, comprising a copolymer or a composition according to the invention.
- said article constitutes at least a part of one of the following articles: sport article, shoe element, sport shoe element, shoe sole, in particular crampon, ski element, in particular of ski or hull boot ski, sports equipment such as ice skates, ski bindings, rackets, sports bats, boards, horseshoes, protective gaiters, flippers, golf balls, leisure article, do-it-yourself, road tool or equipment , equipment or protective article, such as helmet visors, spectacles, glasses, automobile parts, car parts such as dashboards, airbags, headlamps, rear-view mirrors, small parts of off-road cars, tanks, in particular scooter, moped, motorcycles, industrial piece, additive industrial, electrical part, electronics, computer, tablet, phone, computer, security accessory, signboard, banner, signboard and advertising, display stand, engraving, furnishing, shopfitting, decoration, contact ball, medical device, dental prosthesis , implant, ophthalmology article, hemodialyzer membrane, optical fiber, art object, sculpture, camera lenses, disposable camera lenses,
- PEBA 1 PA 12-PTMG (Mn: 600-2000)
- PEBA 1 is a PA 12 block copolymer and PTMG blocks of number average molecular weights (Mn) 600 - 2000 respectively.
- PEBA 2 PA 12-PTMG (Mn: 850-2000)
- PEBA 2 is a copolymer according to the invention, with PA 12 blocks and PTMG blocks of number-average molecular masses (Mn) 850 - 2000 respectively.
- Copo 2 98% PEBA 2 + 2% PCDI
- PEBA 3 PA 12-PTMG (Mn: 2000-1000)
- PEBA 3 is a cepelymère selen the inventien, with blues PA 12 and blues PTMG of meyenne melécular masses in nembre (Mn) respectively 2000 - 1000.
- PEBA 4 PA1 1 -PTMG (600-1000)
- PEBA 4 is a cepelymer with blccs PA1 1 and PTMG blobs of meyenne melecular masses in nembre (Mn) respectively 600 - 1000.
- PCDI Polycarbodiimide used in the examples: Poly- (1,3,5-triisopropylphenylene-2,4-carbodiimide)
- Copos materials according to the invention have a higher melt viscosity than the comparative PEBAs.
- Copos materials according to the invention are therefore more easily extrudable than comparative PEBA materials.
- a rod is extruded through a die of a capillary rheometer; it is entered in the molten state by two pairs of wheels driven by a variable speed motor.
- a first pair of wheels and the motor are mounted at the free end, deviable, a support connected directly to a sensor, representing the restoring force.
- the second pair of wheels (coupled to the first pair) makes it possible to guide and limit the winding of the ring around the upper wheels.
- Small buffers soaked with surfactant liquid water, ethanol, and surfactant mixture are also applied to the wheels to cool them and thus limit the bonding effect.
- the melt strenght curves of FIGS. 1 and 2 represent the elongation constraint on the ordinate as a function of the elongation factor on the abscissa.
- Test temperatures 150 ° C or 180 ° C depending on the graies
- Diameter of the piston 12 mm
- Figure 1 shows the elongational measurement result of PEBA 3 (bottom curve) and Copo 3 (top curve) at 180 ° C.
- Figure 2 shows the elongational flow rheology measurement result of PEBA 4 (bottom curve) and Copo 4 (top curve) at 150 ° C.
- copolymers Copo 3 and Copo 4 according to the invention have an improved stretching ability compared to that of the respective controls PEBA 3 and PEBA 4.
- Block copolymers having at least one end of a carboxylic acid chain blocked by a polycarbodiimide exhibit improved stretchability compared with the same respective unblocked copolymers.
- Figure 3 shows the results of tensile curves according to ISO 527-1 A: 2012 at 23 ° C for PEBA 1 (bottom curve) and Copo 1 (top curve).
- the percentage of residual deformation is smaller in the case of the Copo 1 according to the invention (upper curve) than for the PEBA 1 (bottom curve), which indicates better durability of the shaped material from Copol.
- copolymers according to the invention have a better abrasion resistance than the respective control PEBAs.
- copolymers according to the invention have a better resistance to tearing than the respective control PEBAs.
- Example 5 Measurement of the Dispersibility of the Different PEBAs and Cooos
- the average molecular weights by weight and by the number Mw and Mn measured increase respectively when passing from a PEBA to the corresponding Copo according to the invention, which indicates that the reaction has taken place between the carbodiimide function of the polycarbodiimide and the function PEBA acid, to form the block copolymer end of acid chain blocked according to the invention.
- the Mw / Mn dispersity is also preserved in each Copo according to the invention with respect to the corresponding initial PEBA, and it is measured less than 3, in all the copolymers, which proves that the copolymers according to the invention remained in the form of linear non-crosslinked. They are therefore perfectly recyclable.
- the dispersity is determined to be equal to the ratio between molecular weight and number Mw / Mn. The accuracy of the measurement is given to within 5%.
- the number average molecular (or molar) mass is set by the chain limiter content. It can be calculated according to the relation:
- Mn (nmonomer / niimiter) * M repetition pattern + Mlimitor
- niimiter number of moles of excess diacid
- Repeat pattern Molecular weight of the pattern of repetition
- the polycarbodiimide thus used according to the present invention makes it possible to improve the properties of extrudability, stretchability, durability of the copolymer, abrasion resistance, and tear resistance, while maintaining its dispersancy and so its recyclability.
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Abstract
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FR1760880A FR3073848B1 (fr) | 2017-11-17 | 2017-11-17 | Copolymere a blocs presentant des resistances ameliorees a l'abrasion et a la dechirure |
PCT/FR2018/052870 WO2019097179A1 (fr) | 2017-11-17 | 2018-11-16 | Copolymere a blocs presentant des resistances ameliorees a l'abrasion et a la dechirure |
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CN110669180A (zh) * | 2019-10-15 | 2020-01-10 | 常州增材制造研究院有限公司 | 一种高性能抗形变3d打印材料及其制备方法 |
FR3108241B1 (fr) * | 2020-03-20 | 2022-05-13 | Rossignol Lange | Elément de chaussure de sport de glisse |
FR3114098B1 (fr) * | 2020-09-15 | 2023-07-14 | Arkema France | Composition comprenant un copolymère à blocs polyamides et à blocs polyéthers |
CN112741394B (zh) * | 2020-12-28 | 2022-10-04 | 晋江市创达鞋业有限公司 | 适用于草坪地的抓地高强度足球鞋鞋底及其加工工艺 |
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- 2018-11-16 EP EP18827158.9A patent/EP3710511A1/fr active Pending
- 2018-11-16 JP JP2020527017A patent/JP7466445B2/ja active Active
- 2018-11-16 CN CN201880074614.0A patent/CN111356718B/zh active Active
- 2018-11-16 US US16/763,567 patent/US11993714B2/en active Active
- 2018-11-16 WO PCT/FR2018/052870 patent/WO2019097179A1/fr unknown
Also Published As
Publication number | Publication date |
---|---|
WO2019097179A1 (fr) | 2019-05-23 |
FR3073848A1 (fr) | 2019-05-24 |
US11993714B2 (en) | 2024-05-28 |
FR3073848B1 (fr) | 2020-11-13 |
CN111356718B (zh) | 2023-08-08 |
CN111356718A (zh) | 2020-06-30 |
JP7466445B2 (ja) | 2024-04-12 |
JP2021503526A (ja) | 2021-02-12 |
US20200385574A1 (en) | 2020-12-10 |
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