GB1295900A - - Google Patents
Info
- Publication number
- GB1295900A GB1295900A GB1295900DA GB1295900A GB 1295900 A GB1295900 A GB 1295900A GB 1295900D A GB1295900D A GB 1295900DA GB 1295900 A GB1295900 A GB 1295900A
- Authority
- GB
- United Kingdom
- Prior art keywords
- calcium chloride
- bath
- tension
- washing
- coagulation bath
- 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
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/22—Formation of filaments, threads, or the like with a crimped or curled structure; with a special structure to simulate wool
-
- 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
-
- 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
- D01F6/28—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/38—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising unsaturated nitriles as the major constituent
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Artificial Filaments (AREA)
Abstract
1295900 Crimped filaments made from acrylonitrile polymers CTA COMPAGNIE INDUSTRIELLE DE TEXTILES ARTIFICIELS & SYNTHETIQUES 23 Dec 1970 [23 Jan 1970] 61091/70 Heading B5B [Also in Division C3] A process for the production of curled yarns including crimped filaments from a solution of a polymer or copolymer containing at least 85% by weight of acrylonitrile units comprises (i) wet spinning a solution of the polymer or copolymer dissolved in an organic solvent therefor into a coagulating bath containing water, an organic solvent for the polymer and calcium chloride, (ii) washing and drawing the resulting filaments, (iii) treating the washed and drawn filaments in continuous form or in the form of cut fibres before drying and without tension in an aqueous bath containing calcium chloride at 110‹ to 120‹ C., (iv) washing the resulting material without tension to eliminate residual calcium chloride and (v) drying without tension. The polymeric acrylonitrile material may be in the form of one or more copolymers, mixtures of polymers or graft polymers containing also units of one or more ethylenic monomers copolymerizable with aerylonitrile, e.g. vinyl compounds, vinylidene chloride, acrylic or methacrylic acids, esters and amides thereof, methacrylonitrile, unsaturated compounds with carboxylic acid function or with sulphonic acid function, basic vinyl derivatives and vinyl dialkylamine ethers. The preferred organic solvent is dimethyl formamide, or dimethylsulphonide and bimethyl acetamide may be used. The preferred proportions of the constituents of the coagulation bath in the order water/solvent/ anhydrous calcium chloride are 10/60/30 to 60/30/w by weight. The preferred amount of anhydrous calcium chloride present in the coagulation bath is 10 to 30% by weight based on the coagulation bath. Preferably, the temperature of the coagulation bath is 0‹ to 20‹ C. The initial drawing may be effected in the aqueous medium of the coagulating bath or in air at ambient temperature, whereas the non- drawing at a higher rate is generally effected after washing the yarn at above 90‹ C. in water or water vapour. Preferably, the treatment bath contains 340 to 450 g./l. of CaCl 2 .
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7002373A FR2076674A5 (en) | 1970-01-23 | 1970-01-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1295900A true GB1295900A (en) | 1972-11-08 |
Family
ID=9049493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1295900D Expired GB1295900A (en) | 1970-01-23 | 1970-12-23 |
Country Status (8)
| Country | Link |
|---|---|
| BE (1) | BE761920A (en) |
| BR (1) | BR7100456D0 (en) |
| CH (1) | CH538553A (en) |
| DE (1) | DE2102220A1 (en) |
| FR (1) | FR2076674A5 (en) |
| GB (1) | GB1295900A (en) |
| LU (1) | LU62418A1 (en) |
| NL (1) | NL7100895A (en) |
-
1970
- 1970-01-23 FR FR7002373A patent/FR2076674A5/fr not_active Expired
- 1970-12-23 GB GB1295900D patent/GB1295900A/en not_active Expired
-
1971
- 1971-01-14 LU LU62418D patent/LU62418A1/xx unknown
- 1971-01-18 DE DE19712102220 patent/DE2102220A1/en active Pending
- 1971-01-22 CH CH101171A patent/CH538553A/en not_active IP Right Cessation
- 1971-01-22 NL NL7100895A patent/NL7100895A/xx unknown
- 1971-01-22 BR BR45671A patent/BR7100456D0/en unknown
- 1971-01-22 BE BE761920A patent/BE761920A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2102220A1 (en) | 1971-07-29 |
| CH538553A (en) | 1973-06-30 |
| BE761920A (en) | 1971-07-01 |
| LU62418A1 (en) | 1971-08-04 |
| NL7100895A (en) | 1971-07-27 |
| BR7100456D0 (en) | 1973-04-19 |
| FR2076674A5 (en) | 1971-10-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |