GB998990A - Method for producing high shrinkage acrylic fibers - Google Patents

Method for producing high shrinkage acrylic fibers

Info

Publication number
GB998990A
GB998990A GB7597/63A GB759763A GB998990A GB 998990 A GB998990 A GB 998990A GB 7597/63 A GB7597/63 A GB 7597/63A GB 759763 A GB759763 A GB 759763A GB 998990 A GB998990 A GB 998990A
Authority
GB
United Kingdom
Prior art keywords
filaments
polyacrylonitrile
weight
high shrinkage
subjecting
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
GB7597/63A
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.)
Monsanto Co
Original Assignee
Monsanto Co
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 Monsanto Co filed Critical Monsanto Co
Publication of GB998990A publication Critical patent/GB998990A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G1/00—Severing continuous filaments or long fibres, e.g. stapling
    • D01G1/06—Converting tows to slivers or yarns, e.g. in direct spinning
    • D01G1/10—Converting tows to slivers or yarns, e.g. in direct spinning by cutting
    • 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
    • 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
    • D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/54—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polymers of unsaturated nitriles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/71—Processes of shaping by shrinking

Abstract

998,990. High shrinkage polyacrylonitrile fibres. MONSANTO CO. Feb. 26, 1963 [March 19, 1962], No. 7597/63. Heading B5B. Filaments of synthetic linear polymers, composed of at least 80% by weight polyacrylonitrile, which exhibit high shrinkage when immersed in boiling water or subjected to dry heat, are produced by first subjecting the filaments after spinning to a stretching step at a low ratio stretch ratio in the range of 1À5 to 2À5 while they are being passed through a bath of boiling water, subjecting the stretched filaments to wet steam under a pressure of 35-55 p.s.i.g., then subjecting the filaments to a second stretching step at a low ratio stretch in the range of 1À7 to 3À0 while they are being passed through a water bath maintained at 70 to 95‹ C.; then cooling the filaments under tension and at constant length and thereafter drying them, at a temperature below 70‹ C. The fibres may be composed of a copolymer of 94% by weight of polyacrylonitrile and 6% by weight of polyvinyl acetate, or of a blend of 88% by weight of the above copolymer and 12% of a copolymer of 50% polyacrylonitrile and 50% methyl vinyl pyridine.
GB7597/63A 1962-03-19 1963-02-26 Method for producing high shrinkage acrylic fibers Expired GB998990A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US180805A US3180913A (en) 1962-03-19 1962-03-19 Method for producing high shrinkage fibers

Publications (1)

Publication Number Publication Date
GB998990A true GB998990A (en) 1965-07-21

Family

ID=22661828

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7597/63A Expired GB998990A (en) 1962-03-19 1963-02-26 Method for producing high shrinkage acrylic fibers

Country Status (7)

Country Link
US (1) US3180913A (en)
BE (1) BE629770A (en)
CH (1) CH415945A (en)
DE (1) DE1435549A1 (en)
DK (1) DK108160C (en)
GB (1) GB998990A (en)
NL (2) NL133430C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2299425A1 (en) * 1975-01-31 1976-08-27 Bayer Ag HIGH SHRINKAGE ACRYLIC FIBERS OR THREADS
FR2336499A1 (en) * 1975-12-23 1977-07-22 Bayer Ag STABLE GLOSS MODACRYLIC FIBERS AND THEIR MANUFACTURING PROCESS

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE646691A (en) * 1963-06-05 1964-10-19
US3330898A (en) * 1963-08-07 1967-07-11 Dow Chemical Co Method for preparing highly shrinkable acrylonitrile polymer fibers
JPS5136372B2 (en) * 1974-02-15 1976-10-08
US4011294A (en) * 1974-06-18 1977-03-08 E. I. Du Pont De Nemours And Company Process for making high shrinkage acrylic fibers
DE2504080C2 (en) * 1975-01-31 1985-04-04 Bayer Ag, 5090 Leverkusen Highly shrinkable acrylic fibers and a method for their manufacture
US4071596A (en) * 1975-06-20 1978-01-31 E. I. Du Pont De Nemours And Company Process for making high shrinkage acrylic fibers
DE2532120C2 (en) * 1975-07-18 1983-02-03 Bayer Ag, 5090 Leverkusen Process for the production of highly shrinkable, wet-spun acrylonitrile fibers or threads
FR2428090A1 (en) * 1978-06-05 1980-01-04 Rhone Poulenc Textile Acrylic! fibres with high boiling water shrinkage - produced by wet spinning followed by a multistage drawing process

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2681265A (en) * 1948-11-27 1954-06-15 American Viscose Corp Spinning artificial filaments
NL272355A (en) * 1960-12-16

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2299425A1 (en) * 1975-01-31 1976-08-27 Bayer Ag HIGH SHRINKAGE ACRYLIC FIBERS OR THREADS
FR2336499A1 (en) * 1975-12-23 1977-07-22 Bayer Ag STABLE GLOSS MODACRYLIC FIBERS AND THEIR MANUFACTURING PROCESS

Also Published As

Publication number Publication date
BE629770A (en)
NL133430C (en)
DK108160C (en) 1967-09-25
CH415945A (en) 1966-06-30
DE1435549A1 (en) 1968-12-12
NL290397A (en)
US3180913A (en) 1965-04-27

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