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 acrylonitrile

Info

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
Application number
GB2505161A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TOHU RAYON KK
Original Assignee
TOHU RAYON KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TOHU RAYON KK filed Critical TOHU RAYON KK
Publication of GB937685A publication Critical patent/GB937685A/en
Expired legal-status Critical Current

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.
GB2505161A 1960-08-11 1961-07-11 Method for producing filamentary tows from polymers and co-polymers of acrylonitrile Expired GB937685A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
BE606337A (en) 1961-11-16
DE1278690B (en) 1968-09-26

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