GB673491A - Improvements in or relating to the spinning of polyacrylonitrile filaments - Google Patents
Improvements in or relating to the spinning of polyacrylonitrile filamentsInfo
- Publication number
- GB673491A GB673491A GB11670/50A GB1167050A GB673491A GB 673491 A GB673491 A GB 673491A GB 11670/50 A GB11670/50 A GB 11670/50A GB 1167050 A GB1167050 A GB 1167050A GB 673491 A GB673491 A GB 673491A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solution
- spinning
- nitrogen
- polymer
- molecular 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.)
- Expired
Links
- 238000009987 spinning Methods 0.000 title abstract 5
- 229920002239 polyacrylonitrile Polymers 0.000 title abstract 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 6
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 abstract 3
- 229910052757 nitrogen Inorganic materials 0.000 abstract 3
- 229920000642 polymer Polymers 0.000 abstract 3
- 238000001816 cooling Methods 0.000 abstract 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000000498 cooling water Substances 0.000 abstract 1
- 229920001577 copolymer Polymers 0.000 abstract 1
- 238000002845 discoloration Methods 0.000 abstract 1
- 239000011261 inert gas Substances 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 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
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/18—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
Landscapes
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Artificial Filaments (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
In the spinning of polyacrylonitrile filaments by extruding a solution of the polymer or a copolymer consisting of at least 85 per cent acrylonitrile in a volatile solvent into a heated evaporative medium, discoloration of the filaments is prevented by previously driving out all the oxygen from the dissolving vessel, filter candles and all the apparatus prior to and including the spinning nozzle by an inert gas, e.g. nitrogen, and by cooling the solution at the spinning nozzle to the lowest temperature which still permits spinning. Additionally the solution, immediately after formation, may be cooled to the temperature which does not induce gelatinization. The amount of cooling in both cases is adapted to the concentration and molecular weight of the polymer. In an example, polyacrylonitrile of molecular weight 30,000 is dissolved in dimethyl formamide at 100 DEG C. and the solution spun into an atmosphere of nitrogen at 160-170 DEG C. The solution is cooled by passing water at 12 DEG C. through a tube surrounding the nozzle and the whole operation is effected in an atmosphere of nitrogen. With a polymer of molecular weight 100,000, the cooling water temperature is 80 DEG C. Specification 595,999 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE673491X | 1949-11-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB673491A true GB673491A (en) | 1952-06-04 |
Family
ID=6590917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11670/50A Expired GB673491A (en) | 1949-11-03 | 1950-05-10 | Improvements in or relating to the spinning of polyacrylonitrile filaments |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2696422A (en) |
| FR (1) | FR1017358A (en) |
| GB (1) | GB673491A (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2233442A (en) * | 1938-05-31 | 1941-03-04 | Dow Chemical Co | Polymeric vinylidene chloride article |
| US2318679A (en) * | 1940-08-05 | 1943-05-11 | Celanese Corp | Production of artificial filaments, films, and like materials |
| US2404713A (en) * | 1943-06-23 | 1946-07-23 | Du Pont | Method for preparing polymeric solutions |
| FR961382A (en) * | 1943-07-28 | 1950-05-11 |
-
1950
- 1950-05-09 FR FR1017358D patent/FR1017358A/en not_active Expired
- 1950-05-10 GB GB11670/50A patent/GB673491A/en not_active Expired
- 1950-09-18 US US185497A patent/US2696422A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR1017358A (en) | 1952-12-09 |
| US2696422A (en) | 1954-12-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB461236A (en) | The manufacture of new artificial fibres, films and the like | |
| GB1106190A (en) | Novel process for spinning heat resistant polyamide fibers | |
| JPH0135084B2 (en) | ||
| GB603873A (en) | Compositions comprising acrylonitrile polymers and copolymers and shaped articles produced therefrom | |
| GB1493342A (en) | Poly(ethylene terephthalate)filaments | |
| GB917889A (en) | Preparation of shaped articles by spinning | |
| US3502606A (en) | Production of shaped polybenzimidazole articles | |
| US2768148A (en) | Solution polymerization of acrylonitrile | |
| GB584548A (en) | Improvements in or relating to the spinning of filaments of acrylonitrile polymers | |
| GB1193170A (en) | Manufacture of Industrial Acrylic Fibers | |
| GB673491A (en) | Improvements in or relating to the spinning of polyacrylonitrile filaments | |
| Hybart et al. | The surface tension of viscous polymers at high temperatures | |
| GB1264763A (en) | Improvements in or relating to the production of carbon fibres | |
| GB605579A (en) | Improvements relating to the dry-spinning of solutions of polymerised vinyl compounds | |
| Goel et al. | Preparation and properties of polyimide fibers | |
| US3681023A (en) | Production of carbon fibers | |
| GB706575A (en) | Process for spinning polyacrylonitrile fibres | |
| US3084992A (en) | Process for the manufacture of shaped structures from acrolein polymers | |
| GB1137492A (en) | Polycarbonate filaments | |
| ES269474A1 (en) | Process for the production of polypropylene monofilaments | |
| US3088794A (en) | Process for spinning and drawing polyalkylene isophthalamides | |
| US3388201A (en) | Polyvinyl chloride textile fibres and method of manufacturing | |
| JPS6477617A (en) | Production of polyvinyl alcohol yarn | |
| GB690553A (en) | Improvements in or relating to the production and use of solutions of acrylic polymers | |
| GB1315940A (en) | Process for the manufacture of carbon fibres |