FR2421966A1 - PROCESS FOR PREPARING ACRYLONITRILE POLYMER FIBERS - Google Patents

PROCESS FOR PREPARING ACRYLONITRILE POLYMER FIBERS

Info

Publication number
FR2421966A1
FR2421966A1 FR7904807A FR7904807A FR2421966A1 FR 2421966 A1 FR2421966 A1 FR 2421966A1 FR 7904807 A FR7904807 A FR 7904807A FR 7904807 A FR7904807 A FR 7904807A FR 2421966 A1 FR2421966 A1 FR 2421966A1
Authority
FR
France
Prior art keywords
filaments
coagulant
acrylonitrile polymer
preparing
polymer fibers
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.)
Granted
Application number
FR7904807A
Other languages
French (fr)
Other versions
FR2421966B1 (en
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.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid 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 American Cyanamid Co filed Critical American Cyanamid Co
Publication of FR2421966A1 publication Critical patent/FR2421966A1/en
Application granted granted Critical
Publication of FR2421966B1 publication Critical patent/FR2421966B1/fr
Granted legal-status Critical Current

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
    • D01F6/28—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

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Artificial Filaments (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

L'invention a pour objet un procédé de préparation de fibres de polymère d'acrylonitrile qui consiste à préparer une solution de filage d'un polymère d'acrylonitrile contenant au moins 70 % en poids environ d'acrylonitrile, le restant étant constitué d'un ou plusieurs monomères copolymérisables, dans une solution aqueuse d'un thiocyanate, à extruder cette solution de filage à travers une filière à trous ronds dans un coagulant aqueux de façon à former des filaments, à étirer ces filaments hors du coagulant de façon à effectuer un premier stade d'étirage, à laver les filaments étirés pour éliminer le coagulant, à étirer les filaments lavés dans de l'eau à une temperature d'environ 70 à 100 degrés C de façon à effectuer un second stade d'étirage, le rapport d'étirage total obtenu dans ces premier et second stades etant d'environ 3 à 14, et à faire passer les filaments résultants d à travers une zone d'étirage contenant de la vapeur maintenue sous une pression suffisante pour fournir une température d'environ 110 à 140 degrés C, en étirant les filaments au sein de la vapeur à un taux suffisant pour porter le rapport d'étirage total à une valeur d'au moins 20.The subject of the invention is a process for preparing acrylonitrile polymer fibers which consists in preparing a spinning solution of an acrylonitrile polymer containing at least approximately 70% by weight of acrylonitrile, the remainder consisting of one or more copolymerizable monomers, in an aqueous solution of a thiocyanate, in extruding this spinning solution through a round-hole die in an aqueous coagulant so as to form filaments, in drawing these filaments out of the coagulant so as to effect a first stage of drawing, washing the stretched filaments to remove the coagulant, stretching the washed filaments in water at a temperature of about 70 to 100 degrees C so as to perform a second stage of drawing, the the total draw ratio obtained in these first and second stages being about 3 to 14, and passing the resulting filaments d through a drawing zone containing steam maintained under sufficient pressure to provide a temperature of about 110 to 140 degrees C, stretching the filaments within the steam at a rate sufficient to bring the total draw ratio to a value of at least 20.

FR7904807A 1978-04-06 1979-02-26 PROCESS FOR PREPARING ACRYLONITRILE POLYMER FIBERS Granted FR2421966A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US89406678A 1978-04-06 1978-04-06

Publications (2)

Publication Number Publication Date
FR2421966A1 true FR2421966A1 (en) 1979-11-02
FR2421966B1 FR2421966B1 (en) 1983-07-22

Family

ID=25402550

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7904807A Granted FR2421966A1 (en) 1978-04-06 1979-02-26 PROCESS FOR PREPARING ACRYLONITRILE POLYMER FIBERS

Country Status (6)

Country Link
JP (1) JPS54134124A (en)
DE (1) DE2851273A1 (en)
ES (1) ES475726A1 (en)
FR (1) FR2421966A1 (en)
GB (1) GB2018188A (en)
IT (1) IT1113464B (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT370064B (en) * 1980-04-21 1983-02-25 Eternit Werke Hatschek L BUILDING MATERIAL MIXING OF FIBER REINFORCED, PARTICULARLY CEMENTED PRODUCTS
DE3027844A1 (en) * 1980-07-23 1982-02-18 Hoechst Ag, 6000 Frankfurt HIGH MODULAR POLYACRYLNITRILE FIBERS AND FIBERS AND METHOD FOR THEIR PRODUCTION
DE3105360C2 (en) * 1981-02-13 1991-07-18 Bayer Ag, 5090 Leverkusen Process for the production of high-strength threads from polyacrylonitrile
CH647271A5 (en) * 1981-03-20 1985-01-15 Hoechst Ag FIXED THREADS AND FIBERS MADE OF ACRYLNITRILE HOMO OR COPOLYMERS, AND METHOD FOR THE PRODUCTION THEREOF.
FR2568273B1 (en) * 1983-04-20 1986-12-19 Japan Exlan Co Ltd POLYACRYLONITRILE FIBER WITH HIGH MECHANICAL STRENGTH AND PROCESS FOR PRODUCING THE SAME
NL8304263A (en) * 1983-12-10 1985-07-01 Stamicarbon PROCESS FOR PREPARING HIGH TENSILE AND MODULUS POLYACRYLONITRIL FILAMENTS.
DE3406910A1 (en) * 1984-02-25 1985-09-05 Hoechst Ag, 6230 Frankfurt MONOFILES AND BRUSHES MADE OF HOMO- OR COPOLYMERISATEN OF ACRYLNITRILE AND METHOD FOR THE PRODUCTION THEREOF
JPS60194110A (en) * 1984-03-12 1985-10-02 Asahi Chem Ind Co Ltd Heat-resistant acrylic fiber and its manufacture
JPS616160A (en) * 1984-06-19 1986-01-11 東レ株式会社 Fiber reinforced hydraulic substance
JPS6197415A (en) * 1984-10-12 1986-05-15 Japan Exlan Co Ltd Polyacrylonitrile fiber having high strength and modulus
JPS61120793U (en) * 1985-01-14 1986-07-30
JPS62299509A (en) * 1986-06-19 1987-12-26 Japan Exlan Co Ltd Production of acrylic fiber having high physical property
JPS6233817A (en) * 1985-08-05 1987-02-13 Japan Exlan Co Ltd Production of acrylic fiber having high tenacity and modulus
WO2000005440A1 (en) * 1998-07-22 2000-02-03 Mitsubishi Rayon Co., Ltd. Acrylonitril-based precursor fiber for carbon fiber and method for production thereof
JP5536439B2 (en) * 2008-12-26 2014-07-02 東洋紡株式会社 Method for producing precursor fiber for obtaining high strength and high modulus carbon fiber
DE102009019120A1 (en) * 2009-04-29 2010-11-04 Thüringisches Institut für Textil- und Kunststoff-Forschung e.V. Polyacrylonitrile form body and method for its production from solution, comprise dissolving polyacrylonitrile in a solvent, spinning and precipitating in a hydrous setting bath, washing in further washing bath and drying the form body
NL2005455C2 (en) * 2010-10-05 2012-04-06 Polymer Res & Dev Process for producing high-performance polymer fibers.
CN102851756B (en) * 2012-08-09 2015-10-21 东华大学 A kind of drawing process of polyacrylonitrile fibre
JP6295874B2 (en) * 2014-07-29 2018-03-20 東レ株式会社 Carbon fiber bundle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1154196A (en) * 1955-12-20 1958-04-03 American Cyanamid Co Preparation of a stretched filamentary material based on polyacrylonitrile
FR2033847A5 (en) * 1969-02-03 1970-12-04 American Cyanamid Co

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1154196A (en) * 1955-12-20 1958-04-03 American Cyanamid Co Preparation of a stretched filamentary material based on polyacrylonitrile
FR2033847A5 (en) * 1969-02-03 1970-12-04 American Cyanamid Co

Also Published As

Publication number Publication date
ES475726A1 (en) 1980-02-16
DE2851273A1 (en) 1979-10-18
IT1113464B (en) 1986-01-20
GB2018188A (en) 1979-10-17
IT7947627A0 (en) 1979-01-15
JPS54134124A (en) 1979-10-18
FR2421966B1 (en) 1983-07-22

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Legal Events

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