IL92521A0 - Acrylic precursor for carbon fibres and method for its preparation - Google Patents

Acrylic precursor for carbon fibres and method for its preparation

Info

Publication number
IL92521A0
IL92521A0 IL92521A IL9252189A IL92521A0 IL 92521 A0 IL92521 A0 IL 92521A0 IL 92521 A IL92521 A IL 92521A IL 9252189 A IL9252189 A IL 9252189A IL 92521 A0 IL92521 A0 IL 92521A0
Authority
IL
Israel
Prior art keywords
acrylic
carbon fibres
yarn
followed
controlled
Prior art date
Application number
IL92521A
Other versions
IL92521A (en
Original Assignee
Enichem Fibre Spa
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11201004&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=IL92521(A0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Enichem Fibre Spa filed Critical Enichem Fibre Spa
Publication of IL92521A0 publication Critical patent/IL92521A0/en
Publication of IL92521A publication Critical patent/IL92521A/en

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
    • D01D5/06—Wet spinning methods
    • 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
    • D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
    • D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
    • 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)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Fibers (AREA)
  • Artificial Filaments (AREA)

Abstract

A method for preparing acrylic precursors with improved characteristics suitable for transformation into carbon fibres of superior mechanical characteristics comprises wet-spinning an acrylic polymer dissolved in dimethylacetamide followed by coagulation in a solvent-non solvent binary mixture bath of rigorously controlled composition and temperature, and a series of controlled-condition stretching operations with interposed washing stages, followed by yarn drying before its final collection. The method is characterised essentially by its coagulation stage, which is conducted under such rigorously controlled bath temperature and composition conditions as to obtain at the end of the process an acrylic yarn which has a perfectly compact structure practically free of flaws (voids), a perfectly circular cross-section and mechanical characteristics which are distinctly better than those of acrylic yarns of identical composition obtained by spinning processes of the known art. The specific destination of the acrylic yarn is the production of high-performance carbon fibres.
IL92521A 1988-12-02 1989-12-01 Acrylic precursor for carbon fibres and method for its preparation IL92521A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8822836A IT1227677B (en) 1988-12-02 1988-12-02 ACRYLIC PRECURSOR FOR CARBON FIBERS AND PROCEDURE TO OBTAIN IT

Publications (2)

Publication Number Publication Date
IL92521A0 true IL92521A0 (en) 1990-08-31
IL92521A IL92521A (en) 1992-08-18

Family

ID=11201004

Family Applications (1)

Application Number Title Priority Date Filing Date
IL92521A IL92521A (en) 1988-12-02 1989-12-01 Acrylic precursor for carbon fibres and method for its preparation

Country Status (7)

Country Link
EP (1) EP0372622B1 (en)
KR (1) KR920007111B1 (en)
AT (1) ATE121146T1 (en)
DE (1) DE68922190T2 (en)
ES (1) ES2070897T3 (en)
IL (1) IL92521A (en)
IT (1) IT1227677B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2265679C2 (en) * 2003-11-27 2005-12-10 МГУ им. М.В. Ломоносова, Химический факультет Method of production of fibers
KR101148428B1 (en) * 2009-12-31 2012-05-23 주식회사 효성 Method of preparing precursors for polyacrylonitrile-based carbon fibers
KR101239424B1 (en) * 2010-12-30 2013-03-06 주식회사 효성 Preparation method for carbon fiber precursor
IT202100029576A1 (en) 2021-11-23 2023-05-23 Montefibre Mae Tech S R L High speed acrylic fiber production process and related apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5239455B2 (en) * 1973-07-23 1977-10-05
JPS5848643B2 (en) * 1977-04-05 1983-10-29 東レ株式会社 High purity acrylic carbon fiber
DE3027844A1 (en) * 1980-07-23 1982-02-18 Hoechst Ag, 6000 Frankfurt HIGH MODULAR POLYACRYLNITRILE FIBERS AND FIBERS AND METHOD FOR THEIR PRODUCTION
DE3685480D1 (en) * 1985-11-18 1992-07-02 Toray Industries METHOD FOR THE PRODUCTION OF CARBON FIBERS WITH HIGH STRENGTH AND HIGH ELASTICITY MODULE.
US4902452A (en) * 1986-07-28 1990-02-20 Mitsubishi Rayon Co., Ltd. Process for producing an acrylic fiber having high fiber characteristics

Also Published As

Publication number Publication date
KR900010088A (en) 1990-07-06
IT1227677B (en) 1991-04-23
IL92521A (en) 1992-08-18
IT8822836A0 (en) 1988-12-02
EP0372622A2 (en) 1990-06-13
DE68922190T2 (en) 1995-09-07
EP0372622B1 (en) 1995-04-12
KR920007111B1 (en) 1992-08-24
DE68922190D1 (en) 1995-05-18
EP0372622A3 (en) 1991-04-10
ES2070897T3 (en) 1995-06-16
ATE121146T1 (en) 1995-04-15

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