GB712042A - Improvements in or relating to method of forming fibres, ribbons, films, and similararticles - Google Patents
Improvements in or relating to method of forming fibres, ribbons, films, and similararticlesInfo
- Publication number
- GB712042A GB712042A GB7174/51A GB717451A GB712042A GB 712042 A GB712042 A GB 712042A GB 7174/51 A GB7174/51 A GB 7174/51A GB 717451 A GB717451 A GB 717451A GB 712042 A GB712042 A GB 712042A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dipropylene glycol
- ethylene carbonate
- per cent
- bath
- fibres
- 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
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)
Abstract
Fibres, films, ribbons and similar articles are produced by extruding an ethylene carbonate spinning solution of an acrylonitrile polymer or copolymer into a coagulating bath comprising dipropylene glycol. Either a polyacrylonitrile or a copolymer of acrylonitrile containing at least 80 per cent. of acrylonitrile may be used. Examples given are copolymers with b -morpholino-ethylvinyl ether, vinyl esters, ethers and ketones, acrylic acid and other unsaturated acids, their esters, amides or nitriles, styrene and substituted styrenes and N-vinyl compounds. The spinning solutions have a solid content of between 15 per cent. and 30 per cent. of polymer. The coagulating bath containing dipropylene glycol should contain less than 30 per cent. by weight of ethylene carbonate and recovered dipropylene glycol may be added during the process to effect this. It is advantageous to use a bath which, exclusive of ethylene carbonate, consists of pure dipropylene glycol, but the commercial grade can be used containing impurities such as mono-, and diethylene glycols or mono-, and tripropylene glycols, provided the impurities do not exceed 25 per cent. by weight, exclusive of ethylene carbonate. The fibres, which are withdrawn from the spin bath at high speeds, are easily washed with water and can be stretched and heat treated. The use of dipropylene glycol enables bath temperatures of 80 DEG C.-150 DEG C. to be used with spinning speeds of 30-200 metres per minute, fibres of good quality being obtained. Further, losses due to decomposition and transesterification of ethylene carbonate, which occur with other glycols, are almost negligible with dipropylene glycol and recovery of both ethylene carbonate and dipropylene glycol is readily effected, enabling the process to be worked continuously for long periods. Specification 676,889 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US153482A US2570201A (en) | 1950-04-01 | 1950-04-01 | Acrylonitrile polymer spinning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB712042A true GB712042A (en) | 1954-07-14 |
Family
ID=22547392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7174/51A Expired GB712042A (en) | 1950-04-01 | 1951-03-28 | Improvements in or relating to method of forming fibres, ribbons, films, and similararticles |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2570201A (en) |
| BE (1) | BE502217A (en) |
| CH (1) | CH303234A (en) |
| FR (1) | FR1038663A (en) |
| GB (1) | GB712042A (en) |
| NL (1) | NL160173B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE522566A (en) * | 1952-09-15 | 1900-01-01 | ||
| US2768148A (en) * | 1952-11-01 | 1956-10-23 | Celanese Corp | Solution polymerization of acrylonitrile |
| DE1085645B (en) * | 1959-05-06 | 1960-07-21 | Hans J Zimmer Verfahrenstechni | Process for the production of polyacrylonitrile threads or fibers with high strength |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE452278A (en) * | 1942-07-01 | |||
| BE465603A (en) * | 1943-02-20 | |||
| US2467553A (en) * | 1947-05-08 | 1949-04-19 | Du Pont | Wet-spinning acrylonitrile polymers |
-
0
- BE BE502217D patent/BE502217A/xx unknown
- NL NL6810554.A patent/NL160173B/en unknown
-
1950
- 1950-04-01 US US153482A patent/US2570201A/en not_active Expired - Lifetime
-
1951
- 1951-03-28 GB GB7174/51A patent/GB712042A/en not_active Expired
- 1951-03-30 FR FR1038663D patent/FR1038663A/en not_active Expired
- 1951-03-31 CH CH303234D patent/CH303234A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US2570201A (en) | 1951-10-09 |
| FR1038663A (en) | 1953-09-30 |
| BE502217A (en) | |
| CH303234A (en) | 1954-11-30 |
| NL160173B (en) |
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