US1938646A - Production of yarns or the like from organic derivatives of cellulose - Google Patents
Production of yarns or the like from organic derivatives of cellulose Download PDFInfo
- Publication number
- US1938646A US1938646A US423561A US42356130A US1938646A US 1938646 A US1938646 A US 1938646A US 423561 A US423561 A US 423561A US 42356130 A US42356130 A US 42356130A US 1938646 A US1938646 A US 1938646A
- Authority
- US
- United States
- Prior art keywords
- filaments
- wetting agent
- aqueous
- cellulose
- treatment
- 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.)
- Expired - Lifetime
Links
- 238000004519 manufacturing process Methods 0.000 title description 23
- 239000001913 cellulose Substances 0.000 title description 11
- 229920002678 cellulose Polymers 0.000 title description 10
- 239000000080 wetting agent Substances 0.000 description 42
- 238000000034 method Methods 0.000 description 32
- 229920002301 cellulose acetate Polymers 0.000 description 20
- VQLYBLABXAHUDN-UHFFFAOYSA-N bis(4-fluorophenyl)-methyl-(1,2,4-triazol-1-ylmethyl)silane;methyl n-(1h-benzimidazol-2-yl)carbamate Chemical compound C1=CC=C2NC(NC(=O)OC)=NC2=C1.C=1C=C(F)C=CC=1[Si](C=1C=CC(F)=CC=1)(C)CN1C=NC=N1 VQLYBLABXAHUDN-UHFFFAOYSA-N 0.000 description 15
- 239000002253 acid Substances 0.000 description 12
- 239000012530 fluid Substances 0.000 description 12
- RGCKGOZRHPZPFP-UHFFFAOYSA-N alizarin Chemical compound C1=CC=C2C(=O)C3=C(O)C(O)=CC=C3C(=O)C2=C1 RGCKGOZRHPZPFP-UHFFFAOYSA-N 0.000 description 11
- 235000010980 cellulose Nutrition 0.000 description 10
- 150000002894 organic compounds Chemical class 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000009987 spinning Methods 0.000 description 9
- 150000003839 salts Chemical class 0.000 description 6
- 235000014113 dietary fatty acids Nutrition 0.000 description 5
- 239000000194 fatty acid Substances 0.000 description 5
- 229930195729 fatty acid Natural products 0.000 description 5
- 150000007513 acids Chemical class 0.000 description 4
- 150000004665 fatty acids Chemical class 0.000 description 4
- 238000000578 dry spinning Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000000344 soap Substances 0.000 description 3
- 239000010902 straw Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000002166 wet spinning Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- BMRVLXHIZWDOOK-UHFFFAOYSA-N 2-butylnaphthalene-1-sulfonic acid Chemical compound C1=CC=CC2=C(S(O)(=O)=O)C(CCCC)=CC=C21 BMRVLXHIZWDOOK-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 229920013683 Celanese Polymers 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 238000007381 cap spinning Methods 0.000 description 1
- 229940106135 cellulose Drugs 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- -1 for example Substances 0.000 description 1
- CBYZIWCZNMOEAV-UHFFFAOYSA-N formaldehyde;naphthalene Chemical class O=C.C1=CC=CC2=CC=CC=C21 CBYZIWCZNMOEAV-UHFFFAOYSA-N 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 125000005608 naphthenic acid group Chemical group 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
- D01F2/24—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives
- D01F2/28—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate
Definitions
- This invention relates to the production of filament-s, threads, yarns, or other materials, such as ribbons, tapes, or straw capable of being produced by the extrusion of solutions of cellulose acetate or other organic derivatives of cellulose, the object of the invention being to produce such filaments, yarns, threads, ribbons, tapes, straw or the like) and likewise, fabrics or articles containing them) of which the lustre is reduced or even completely removed or which can readily be delustred.
- the invention is characterized by the employment in the production of such materials (hereinafter referred to as filaments) of Turkey red oil or other wetting agents whether comprising organic'sulphonic acids or sulphuric esters or salts thereof, or otherwise, such wetting agents being employed in such a manner that the filaments produced are capable of having their lustre completely or partially removed by a treatment with moist steam or with aqueous, alcoholic, or other suitable liquids.
- filaments such materials (hereinafter referred to as filaments) of Turkey red oil or other wetting agents whether comprising organic'sulphonic acids or sulphuric esters or salts thereof, or otherwise, such wetting agents being employed in such a manner that the filaments produced are capable of having their lustre completely or partially removed by a treatment with moist steam or with aqueous, alcoholic, or other suitable liquids.
- the invention is applicable to the production of filaments, by the dry or evaporative method or by the wet or coagulation method.
- spinning solutions containing organic cellulose derivatives for use according to either of these methods may contain proportions of V wetting agents such as, for example, soaps, sulphonated soaps, or sulphonatedoils, it being understood, of course, that only such wetting agents are employed as are soluble in the solvent used in the spinning solution.
- the evaporation of the volatile solvent for the cellulose derivative from the extruded solution produces delustrable filaments having a content of the wetting agent.
- aqueous liquids preferably warm or hot
- the extent of the delustring can be determined by varying the amount of wetting agent added to the spinning solution, greater delustring requiring the use of larger proportions of the wetting agent.
- the steaming, or the aqueous or other treatment for the delustring of the filaments may be performed continuously with the dry-spinning of the filaments as by passing the ,filaments through an aqueous or other suitable bath, or may be applied subsequently thereto.
- the said treatment may be followedby a drying, of the delustred filaments and the dried filaments may be collected in any convenientmanner, such as'by winding or twisting and winding.
- the spinning bath is so chosen that the filaments emerging from the bath contain a proportion of the wetting agent or agents and upon subsequent aqueous or other treatment become declustered.
- wetting agents which may be employed in the production of delustred filaments according to the invention are salts of higher fatty acids, sulphonated higher fatty acids and salts thereof, naphthenic acids, naphthene sulphonic acids or aromatic sulphonic acids and salts thereof, sulpho-aromatic fatty acids and salts thereof, resin soaps, sulphonated naphthalene formaldehyde condensation products, alkylated aromatic sulphonic acids such as iso-propyl or butyl naphthalene sulphonic acid, and salts thereof,
- the invention includes within its scope filaments, yarns, or threads containing wetting agents and capable of being delustred by a subsequent treatment asindicated above, and'also fabrics or articles made from or containing such filaments, yarns, or threads.
- the invention likewise includes filamentsyarns or threads produced in the manner above described, and delustred by subsequent treatment with aqueous fluids. This treatment however may conveniently be deferred or other operations performed on the fabrics or articles.
- a spinning solution of cellulose acetate in acetone is given an addition of Turkey red oilyeither during the mixing'of the solution or after the cellulose acetate has dissolved.
- the solution is then extruded into a current of air in a spinning chamber, and the filaments produced are led out of the chamber and collected in any suitable manner, for example, by means of a cap-spinning device.
- the filaments contain a proportion of Turkey red oil and are steamed, or immersed in or otherwise treated with water, preferably warm or hot, or alcohol, for the purpose of reducing the lustre.
- Turkey red oil in amounts varying from 1 to about 10 or 12% calculated on the weight of the cellulose acetate has been found suitable for producing filaments varying in appearance from a mere dullness to a complete absence of lustre according to the amount of Turkey red oil employed.
- filaments in the appended claims is to be understood to cover extruded artificial products generally, i. e. filaments, yarns, threads, tapes, ribbon, straw or like products.
- Process for the production of delustrable artificial filaments which comprises extruding an organic solution of cellulose acetate containing a wetting agent which is a sulphonated organic compound into a non-aqueous setting medium in which the wetting agent is substantially un- .dispersable.
- Process for the production of delustrable artificial filaments which comprises extruding an organic solution of cellulose acetate containing a sulphonated higher fatty acid into a nonaqueous setting medium in which the wetting agent is substantially undispersable.
- Process for the production J of delustrable artificial filaments which comprises extruding an organic solution of cellulose acetate containing Turkey red oil into a non-aqueous setting medium in which the wetting agent is substantially undispersable.
- Process for the manufactured delustra'ble artificial filaments comprising .extruding into an evaporative atmosphere an organic solution of cellulose acetate containing a wetting agent which is a water soluble'organic compound containing acid groups, and causing the filaments so extruded to set in said evaporative atmosphere.
- Process for the manufacture of artificial filaments having a reduced lustre which comprises extruding an organic solution of an organic derivative of cellulose containing a wetting agent into a setting medium in which the wetting agent is substantially undispersable, and subjecting the said filaments so formed to a treatment with an aqueous fiuid.
- Process for the manufacture of artificial filaments having a reduced lustre which comprises extruding an organic solution of an organic derivative of cellulose containing a wetting agent which is a water soluble organic compound containing acid groups into a non-aqueous setting medium in which the wetting agent is substantially undispersable and subjecting the said filaments'so formed to a treatment with an aqueous fluid.
- Process for the manufacture of'artificial filaments having a reduced lustre which comprises extruding an organicsolution of cellulose acetate containing a wetting agent which is a water soluble organic compound containing acid groups into a non-aqueous setting medium in which the wetting agent is substantially undispersable and subjecting the said filaments so formed to a treatment with an aqueous fiuid.
- Process for the production of artificial filaments having a reduced lustre which comprises extruding an organic solution of cellulose acetate containing a wetting agent which is a sulphonated organic compound into a non-aqueous setting medium which does not remove the wetting agent from thefilaments'so extruded and subjecting said filaments to a treatment withan aqueous fluid.
- Process for the manufacture of artificial filaments having a reduced lustre comprising extruding into an evaporative atmosphere an organic solution of cellulose acetate containing a wetting agent which is a water soluble organic compound containing acid groups, causing the filaments so extruded to set in said evaporative'atmosphere, and subjecting the set filaments to a treatment with an aqueous fluid.
- Process for the manufacture of artificial filaments having a reduced lustre comprising extruding into an evaporative atmosphere an organic solution of cellulose acetate containing Turkey red oil, causing the filaments so extruded to set in said evaporative atmosphere, and subjecting the set filaments to a treatment with an aqueous fluid.
- Process for the production of artificial filaments having a reduced lustre which comprises extruding an organic solution of cellulose acetate containing a wetting agent which is a water soluble organic compound containing acid groups into a non-aqueous setting medium which does not remove the wetting agent from the filaments so extruded and subjecting the filaments continuously with their setting to a treatment with an aqueous fluid.
- Process for the manufacture of artificial filaments having a reduced lustre comprising extruding into an evaporative atmosphere an organic solution of cellulose acetate containing a wetting agent which is a water soluble organic compound containing acid groups, causing the filaments so extruded to set in said evaporative atmosphere, and subjecting the filaments continuously with their setting to a treatment with an aqueous fluid.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
- Artificial Filaments (AREA)
Description
Patented Dec. 12, 1933 PRODUCTION OF YARNS OR THE LIKE FROM ORGANIC DERIVATIVES OF CELLU- LOSE William Ivan Taylor, Spondon, near Derby, England, assignor to Celanese Corporation of America, a corporation of Delaware No Drawing. Application January 25, 1930, Serial No. 423,561, and in Great Britain February 5,
25 Claims. (Cl. 18-54) This invention relates to the production of filament-s, threads, yarns, or other materials, such as ribbons, tapes, or straw capable of being produced by the extrusion of solutions of cellulose acetate or other organic derivatives of cellulose, the object of the invention being to produce such filaments, yarns, threads, ribbons, tapes, straw or the like) and likewise, fabrics or articles containing them) of which the lustre is reduced or even completely removed or which can readily be delustred.
The invention is characterized by the employment in the production of such materials (hereinafter referred to as filaments) of Turkey red oil or other wetting agents whether comprising organic'sulphonic acids or sulphuric esters or salts thereof, or otherwise, such wetting agents being employed in such a manner that the filaments produced are capable of having their lustre completely or partially removed by a treatment with moist steam or with aqueous, alcoholic, or other suitable liquids.
The invention is applicable to the production of filaments, by the dry or evaporative method or by the wet or coagulation method. For example, in one method of carrying out the invention spinning solutions containing organic cellulose derivatives for use according to either of these methods may contain proportions of V wetting agents such as, for example, soaps, sulphonated soaps, or sulphonatedoils, it being understood, of course, that only such wetting agents are employed as are soluble in the solvent used in the spinning solution.
Inthe caseof dry spinning a solution containing a wetting agent, the evaporation of the volatile solvent for the cellulose derivative from the extruded solution produces delustrable filaments having a content of the wetting agent. By treatment of the filaments with, for example, aqueous liquids, (preferably warm or hot) the filaments are'delustred. The extent of the delustring can be determined by varying the amount of wetting agent added to the spinning solution, greater delustring requiring the use of larger proportions of the wetting agent. The steaming, or the aqueous or other treatment for the delustring of the filaments may be performed continuously with the dry-spinning of the filaments as by passing the ,filaments through an aqueous or other suitable bath, or may be applied subsequently thereto. Whenforming a continuous operation with the dry-spinning process, the said treatment may be followedby a drying, of the delustred filaments and the dried filaments may be collected in any convenientmanner, such as'by winding or twisting and winding. I
In the spinning of solutions containing wetting agents as above described by the wet or coagulation method, the spinning bath is so chosen that the filaments emerging from the bath contain a proportion of the wetting agent or agents and upon subsequent aqueous or other treatment become declustered.
Examples of wetting agents which may be employed in the production of delustred filaments according to the invention are salts of higher fatty acids, sulphonated higher fatty acids and salts thereof, naphthenic acids, naphthene sulphonic acids or aromatic sulphonic acids and salts thereof, sulpho-aromatic fatty acids and salts thereof, resin soaps, sulphonated naphthalene formaldehyde condensation products, alkylated aromatic sulphonic acids such as iso-propyl or butyl naphthalene sulphonic acid, and salts thereof,
In the employment of aqueous liquors to carry out the reduction in the lustre of filaments which have received a content of a wetting agent according to the invention, it is preferred to carry out the treatment with heated liquors, though the reduction in lustre may be effected, though more slowly by the action on the filaments of cold aqueous liquors.
The invention includes Within its scope filaments, yarns, or threads containing wetting agents and capable of being delustred by a subsequent treatment asindicated above, and'also fabrics or articles made from or containing such filaments, yarns, or threads. The invention likewise includes filamentsyarns or threads produced in the manner above described, and delustred by subsequent treatment with aqueous fluids. This treatment however may conveniently be deferred or other operations performed on the fabrics or articles. Y
Various methods of carrying out the invention will now be described in greater detail, with reference to the spinning of filaments of cellulose acetate, but it is to be understood that the following description is by wayof illustration'only and in no way limitative. A spinning solution of cellulose acetate in acetone is given an addition of Turkey red oilyeither during the mixing'of the solution or after the cellulose acetate has dissolved. The solution is then extruded into a current of air in a spinning chamber, and the filaments produced are led out of the chamber and collected in any suitable manner, for example, by means of a cap-spinning device. The filaments contain a proportion of Turkey red oil and are steamed, or immersed in or otherwise treated with water, preferably warm or hot, or alcohol, for the purpose of reducing the lustre.
Turkey red oil in amounts varying from 1 to about 10 or 12% calculated on the weight of the cellulose acetate has been found suitable for producing filaments varying in appearance from a mere dullness to a complete absence of lustre according to the amount of Turkey red oil employed.
Similar proportions of Turkey red oil may be used in spinning solutions from which the filaments are formed by the wet spinning process, a wet spinning bath of such a nature that the filaments emerging from the bath containing a proportion of the Turkey red oil being employed. 7
The term filaments in the appended claims is to be understood to cover extruded artificial products generally, i. e. filaments, yarns, threads, tapes, ribbon, straw or like products.
What I claim and desire to secure by Letters Patent is- 1. Process for the manufacture of delustrable artificial filaments which comprises extruding an organic solution of an organic derivative of cellulose containing a wetting agent into a setting medium which does not remove the wetting agent from the filaments so extruded.
2. Process for the manufacture of delustrable artificial filaments which comprises extruding an organic solution of an organic derivative of cellulose containing a wetting agent which is a water soluble organic compound containing acid groups into a non-aqueous setting medium which does not remove the wetting agent from the filaments so extruded.
3. Process for the manufacture of delustrable artificial filaments which comprises extruding an organic solution 'ofcellulose acetate containing a wetting agent into a setting medium which does not remove the wetting agent from the filaments so extruded.
4. Process for the production of delustrable artificial filaments which comprises extruding an organic solution of cellulose acetate containing a wetting agent which is a sulphonated organic compound into a non-aqueous setting medium in which the wetting agent is substantially un- .dispersable.
5. Process for the production of delustrable artificial filaments which comprises extruding an organic solution of cellulose acetate containing a sulphonated higher fatty acid into a nonaqueous setting medium in which the wetting agent is substantially undispersable.
6. Process for the production J of delustrable artificial filaments which comprises extruding an organic solution of cellulose acetate containing Turkey red oil into a non-aqueous setting medium in which the wetting agent is substantially undispersable.
,7. Process for the manufactured delustra'ble artificial filaments, said process comprising .extruding into an evaporative atmosphere an organic solution of cellulose acetate containing a wetting agent which is a water soluble'organic compound containing acid groups, and causing the filaments so extruded to set in said evaporative atmosphere.
8. Process, for the manufacture of delustrable artificial filaments, said process comprising extruding into an evaporative atmosphere an organic solution of cellulose acetate containing Turkey red oil, and causing the filaments so extruded to set in said evaporative atmosphere.
9. Process for the manufacture of artificial filaments having a reduced lustre which comprises extruding an organic solution of an organic derivative of cellulose containing a wetting agent into a setting medium in which the wetting agent is substantially undispersable, and subjecting the said filaments so formed to a treatment with an aqueous fiuid. Y
10. Process for the manufacture of artificial filaments having a reduced lustre which comprises extruding an organic solution of an organic derivative of cellulose containing a wetting agent which is a water soluble organic compound containing acid groups into a non-aqueous setting medium in which the wetting agent is substantially undispersable and subjecting the said filaments'so formed to a treatment with an aqueous fluid.
11. Process for the manufacture of'artificial filaments having a reduced lustre which comprises extruding an organicsolution of cellulose acetate containing a wetting agent which is a water soluble organic compound containing acid groups into a non-aqueous setting medium in which the wetting agent is substantially undispersable and subjecting the said filaments so formed to a treatment with an aqueous fiuid.
12. Process for the production of artificial filaments having a reduced lustre which comprises extruding an organic solution of cellulose acetate containing a wetting agent which is a sulphonated organic compound into a non-aqueous setting medium which does not remove the wetting agent from thefilaments'so extruded and subjecting said filaments to a treatment withan aqueous fluid.
13. Process for the production of artificial filaments having a reduced lustre which'comprises extruding an organic solution of cellulose acetate containing a sulphonatedhigher fatty acid into a non-aqueous setting medium which does notremove the wetting agent from the filaments so extruded and subjecting said filaments to a treatment with an aqueous fluid.
' 14. Process for the manufacture of artificial filaments having a reduced lustre, said process comprising extruding into an evaporative atmosphere an organic solution of cellulose acetate containing Turkey red oil, causing the filaments so extruded to set in said evaporative atmosphere and subjectingthe set filaments to a treatment with an aqueous fiuid. 7 I
15. Process for the manufacture of artificial filaments having a reduced lustre,- said process comprising extruding into an evaporative atmosphere an organic solution of cellulose acetate containing a wetting agent which is a water soluble organic compound containing acid groups, causing the filaments so extruded to set in said evaporative'atmosphere, and subjecting the set filaments to a treatment with an aqueous fluid.
16. Process for the manufacture of artificial filaments having a reduced lustre, said process comprising extruding into an evaporative atmosphere an organic solution of cellulose acetate containing Turkey red oil, causing the filaments so extruded to set in said evaporative atmosphere, and subjecting the set filaments to a treatment with an aqueous fluid. j
17. Process for the production of artificial filaments having a reduced lustrewhich comprises extruding an organic solution of cellulose acetate containing a wetting agent which is a water soluble organic compound containing acid groups into a non-aqueous setting medium which does not remove the wetting agent from the filaments so extruded and subjecting the filaments continuously with their setting to a treatment with an aqueous fluid.
18. Process for the manufacture of artificial filaments having a reduced lustre, said process comprising extruding into an evaporative atmosphere an organic solution of cellulose acetate containing a wetting agent which is a water soluble organic compound containing acid groups, causing the filaments so extruded to set in said evaporative atmosphere, and subjecting the filaments continuously with their setting to a treatment with an aqueous fluid.
19. Artificial filaments of an organic derivative of cellulose susceptible to delustering under treatment with aqueous fluids, said filaments containing a wetting agent.
20. Artificial filaments of an organic derivative of cellulose susceptible to delustering under treatment with aqueous fluids, said filaments containing a wetting agent which is water soluble organic compound containing acid groups.
21. Artificial filaments of cellulose acetate susceptible to delustering under treatment with aqueous fluids, said filaments containing a wetting agent.
22. Artificial filaments of cellulose acetate susceptible to delustering under treatment with aqueous fluids, said filaments containing a. wetting agent which is water soluble organic com-
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3847/29A GB333504A (en) | 1929-11-20 | 1929-02-05 | Improvements in or relating to the manufacture and treatment of materials made of or containing organic derivatives of cellulose |
| US408667A US1938623A (en) | 1929-11-20 | 1929-11-20 | Spinning of artificial filaments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1938646A true US1938646A (en) | 1933-12-12 |
Family
ID=26238645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US423561A Expired - Lifetime US1938646A (en) | 1929-02-05 | 1930-01-25 | Production of yarns or the like from organic derivatives of cellulose |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US1938646A (en) |
| GB (1) | GB367830A (en) |
-
1930
- 1930-01-25 US US423561A patent/US1938646A/en not_active Expired - Lifetime
- 1930-11-20 GB GB35037/30A patent/GB367830A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB367830A (en) | 1932-02-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2290789A (en) | Manufacture and production of artificial filaments, threads, and the like | |
| US1938646A (en) | Production of yarns or the like from organic derivatives of cellulose | |
| US2147642A (en) | Production of artificial filaments, films, and like materials | |
| US3170973A (en) | Method of producing fibers | |
| US3120095A (en) | Method of making high bulk yarns | |
| GB407710A (en) | Improvements in or relating to the production or treatment of artificial filaments, threads, yarns, ribbons and the like | |
| US2025044A (en) | Application of new organic ethers | |
| US3689621A (en) | Continuous wet spinning method of producing useful filamentary materials of an acrylonitrile copolymer | |
| US2147641A (en) | Production of artificial filaments, films, and like materials | |
| US2086122A (en) | Production of artificial materials | |
| US3003846A (en) | Manufacture of artificial filamentary material | |
| US2116063A (en) | Treatment of artificial materials | |
| US2065668A (en) | Manufacture and treatment of filaments and the like | |
| US2112236A (en) | Manufacture of artificial filaments | |
| US2025962A (en) | Production and treatment of filaments, yarns, ribbons, films, and other materials made of or containing cellulose esters or ethers | |
| US2460400A (en) | Methods for the treatment of regenerated cellulose thread | |
| US2065664A (en) | Manufacture of articles from cellulose esters or ethers | |
| US1920188A (en) | Production of artificial materials | |
| US2061565A (en) | Treatment of fibers or like materials | |
| US2066492A (en) | Production or treatment of artificial filaments or the like | |
| US2090670A (en) | Production of artificial materials | |
| US1903299A (en) | Production of artificial materials from cellulose derivatives | |
| US2399970A (en) | Manufacture of polyvinyl alcohol threads | |
| US2192964A (en) | Saponification of cellulose ester textile materials | |
| US2394212A (en) | Manufacture of artificial products |