GB1477035A - Process for producing carbonaceous fibrous material - Google Patents

Process for producing carbonaceous fibrous material

Info

Publication number
GB1477035A
GB1477035A GB2979474A GB2979474A GB1477035A GB 1477035 A GB1477035 A GB 1477035A GB 2979474 A GB2979474 A GB 2979474A GB 2979474 A GB2979474 A GB 2979474A GB 1477035 A GB1477035 A GB 1477035A
Authority
GB
United Kingdom
Prior art keywords
filaments
acrylonitrile
fibrous material
carbonizing
july
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
GB2979474A
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.)
Japan Exlan Co Ltd
Original Assignee
Japan Exlan Co Ltd
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 Japan Exlan Co Ltd filed Critical Japan Exlan Co Ltd
Publication of GB1477035A publication Critical patent/GB1477035A/en
Expired 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
    • 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
    • D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
    • D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
    • D01F9/20—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products
    • D01F9/21—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F9/22—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyacrylonitriles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Inorganic Fibers (AREA)
  • Artificial Filaments (AREA)

Abstract

1477035 Carbon fibres JAPAN EXLAN CO Ltd 4 July 1974 [5 July 1973] 29794/74 Heading C1A Carbonaceous fibrous material is produced from acrylic fibrous material, which is crack free or has cracks which number less than 5 per cm. per filament and a coefficient of variation in fineness between single filaments of less than 15% and which consists of filaments made from a homopolymer of acrylonitrile or a copolymer of acrylonitrile containing at least 85 mole per cent of acrylonitrile and another ethylenically unsaturated compound, by heating to thermally stabilize and thereafter carbonize the material. Preferably in the thermal stabilizing step the filaments are heated in an oxidizing atmosphere, e.g. air, at 150-400‹ C. followed by carbonizing or carbonizing and then graphitizing in a non-oxidizing atmosphere, e.g. N 2 , above 800‹ C. The acrylic fibrous starting material can be produced by extrusion of a spinning solution consisting of the above homo or copolymers and a solvent through spinnerette orifices into air or an inert gas, followed by coagulation into filaments, washing, stretching and drying. Reference has been directed by the Comptroller to Specifccations 1,339,744 and 1,200,492.
GB2979474A 1973-07-05 1974-07-04 Process for producing carbonaceous fibrous material Expired GB1477035A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7592773A JPS5134488B2 (en) 1973-07-05 1973-07-05

Publications (1)

Publication Number Publication Date
GB1477035A true GB1477035A (en) 1977-06-22

Family

ID=13590394

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2979474A Expired GB1477035A (en) 1973-07-05 1974-07-04 Process for producing carbonaceous fibrous material

Country Status (4)

Country Link
JP (1) JPS5134488B2 (en)
DE (1) DE2432042C3 (en)
FR (1) FR2236034B1 (en)
GB (1) GB1477035A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS565661B2 (en) * 1975-03-05 1981-02-06
JPS58214533A (en) * 1982-06-09 1983-12-13 Toray Ind Inc Carbon fiber bundle having improved mechanical property and production thereof
JPS62125017A (en) * 1986-10-03 1987-06-06 Japan Exlan Co Ltd Carbon fiber

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1327017A (en) * 1960-09-05 1963-05-17 Process for wet spinning of polymers dissolved in aqueous solutions containing electrolytes and device for its implementation
GB1214807A (en) * 1966-12-31 1970-12-02 Rolls Royce Method of manufacturing carbonaceous fibre
ZA702622B (en) * 1969-05-12 1971-05-27 American Cyanamid Co Process for producing an acrylic synthetic fiber having a non-circular cross-section
CA1015514A (en) * 1971-06-11 1977-08-16 Charles M. Clarke Production of filamentary materials

Also Published As

Publication number Publication date
DE2432042B2 (en) 1976-07-08
JPS5024534A (en) 1975-03-15
FR2236034B1 (en) 1977-03-11
FR2236034A1 (en) 1975-01-31
DE2432042A1 (en) 1975-01-16
DE2432042C3 (en) 1979-11-15
JPS5134488B2 (en) 1976-09-27

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 19940703