GB937685A - Method for producing filamentary tows from polymers and co-polymers of acrylonitrile - Google Patents
Method for producing filamentary tows from polymers and co-polymers of acrylonitrileInfo
- Publication number
- GB937685A GB937685A GB2505161A GB2505161A GB937685A GB 937685 A GB937685 A GB 937685A GB 2505161 A GB2505161 A GB 2505161A GB 2505161 A GB2505161 A GB 2505161A GB 937685 A GB937685 A GB 937685A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polyacrylonitrile
- spun
- polymers containing
- spinning pot
- zinc halide
- 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
- D01D7/00—Collecting the newly-spun products
- D01D7/02—Collecting the newly-spun products in centrifugal spinning pots
-
- 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
- D01D5/06—Wet spinning methods
-
- 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
- D01D5/12—Stretch-spinning methods
- D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
-
- 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)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Artificial Filaments (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
<FORM:0937685/IV(a)/1> Polymers containing at least 85% polyacrylonitrile, any balance being copolymers therewith, are dissolved in 55-65% aqueous zinc halide, and the resulting solution is spun into an aqueous coagulating bath containing a 5-35% solution of the same zinc halide and held at 5 DEG -25 DEG C., and the resulting tow stretched in saturated steam or in an aqueous medium held at at least 100 DEG C., and reeled in a spinning pot, the stretched tow being brought into contact with hot water at substantially 100 DEG C. in the funnel of the spinning pot and thereby subjected to 20-35% shrinkage and then desalted by spraying with hot water, while being reeled on the spinning pot. Specified zinc halides include the chloride, bromide and iodide. Polymerization of the constituent monomers may be effected in the spinning solvent, which may also contain an organic or inorganic acid, e.g. acetic or hydrochloric acid. Desirably, polymers containing at least 93% polyacrylonitrile are spun into a coagulating bath having a zinc halide concentration of 20-35% and maintained at 5 DEG -15 DEG C., while polymers containing 85-92% polyacrylonitrile are more suitably spun into a coagulating bath having a zinc halide concentration of 5-15% and maintained at 15 DEG -25 DEG C. An intermediate drying step to less than 3% water is desirable after stretching polymers containing over 93% polyacrylonitrile. As shown, the freshly-spun tow 3 is subjected to saturated steam in the chamber 5 while passing around rollers 4, and stretched between rollers 5 and 6. Heated rollers 7 may be used to effect the intermediate drying step when required. While passing through the funnel 9 of spinning pot 8 the filaments are sprayed through the pipe 11 to effect shrinkage, and are desalted by a spray of hot water supplied from pipe 13 and issuing at the foot of the funnel 12 while being reeled on the spinning pot.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3434060 | 1960-08-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB937685A true GB937685A (en) | 1963-09-25 |
Family
ID=12411397
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2505161A Expired GB937685A (en) | 1960-08-11 | 1961-07-11 | Method for producing filamentary tows from polymers and co-polymers of acrylonitrile |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE606337A (en) |
DE (1) | DE1278690B (en) |
GB (1) | GB937685A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61119707A (en) * | 1984-11-13 | 1986-06-06 | Asahi Chem Ind Co Ltd | Acrylic fiber having excellent durability and color-developability and production thereof |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1069819B (en) * | 1959-11-26 | |||
US2445042A (en) * | 1943-07-28 | 1948-07-13 | Du Pont | Method of treating oriented acrylonitrile structures |
NL72124C (en) * | 1947-02-13 | |||
US2681265A (en) * | 1948-11-27 | 1954-06-15 | American Viscose Corp | Spinning artificial filaments |
NL74683C (en) * | 1949-06-13 | |||
DE850213C (en) * | 1949-11-01 | 1952-09-22 | Kunstseidefabrik Bobingen | Process for the production of shaped structures from polyvinyl or polyacrylic compounds |
GB690553A (en) * | 1950-01-05 | 1953-04-22 | British Celanese | Improvements in or relating to the production and use of solutions of acrylic polymers |
US2558793A (en) * | 1950-03-24 | 1951-07-03 | Eastman Kodak Co | Mixtures comprising polyacrylonitrile and polyvinyl formate |
US2837492A (en) * | 1954-02-10 | 1958-06-03 | Dow Chemical Co | Process of making colorless aqueous saline solutions of polyacrylonitrile |
-
1961
- 1961-07-11 GB GB2505161A patent/GB937685A/en not_active Expired
- 1961-07-19 BE BE606337A patent/BE606337A/en unknown
- 1961-08-09 DE DET20576A patent/DE1278690B/en active Pending
Also Published As
Publication number | Publication date |
---|---|
BE606337A (en) | 1961-11-16 |
DE1278690B (en) | 1968-09-26 |
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