GB1293900A - Process for production of carbon fibers - Google Patents

Process for production of carbon fibers

Info

Publication number
GB1293900A
GB1293900A GB23660/70A GB2366070A GB1293900A GB 1293900 A GB1293900 A GB 1293900A GB 23660/70 A GB23660/70 A GB 23660/70A GB 2366070 A GB2366070 A GB 2366070A GB 1293900 A GB1293900 A GB 1293900A
Authority
GB
United Kingdom
Prior art keywords
fibres
stretch
orienting
contacting
melt
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
GB23660/70A
Inventor
Tadashi Araki
Hitoshi Takita
Kiro Asano
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.)
Kureha Corp
Original Assignee
Kureha Corp
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 Kureha Corp filed Critical Kureha Corp
Publication of GB1293900A publication Critical patent/GB1293900A/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

Landscapes

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

Abstract

1293900 Poly(methyl vinyl ketone) fibres KUREHA KAGAKU KOGYO KK 15 May 1970 [17 May 1969] 23660/70 Heading B5B [Also in Division C1] Fibres of polymethyl vinyl ketone are produced as a step in the production of carbon fibres (see Division C1) by spinning polymethyl vinyl ketone into fibres which are (i) stretch oriented, (ii) dehydrogenated and cyclized, and (iii) optionally heated at up to 350‹ in an atmosphere containing at least one oxidizing gas selected from O 3 , O 2 , air, oxides of nitrogen, SO 3 , and halogens. Steps (i) and (ii) or steps (ii) and (iii) may be carried out simultaneously. Exemplified are (a) melt spinning at 195‹ C. followed by stretch-orienting and cyclizing- dehydrating in 15% aqueous polyphosphoric acid at 75‹ C.; (b) melt spinning at 120‹ C. followed by stretch-orienting at up to 40‹ C. in water, treating in concentrated H 2 SO 4 for cyclization-dehydration, and finally treating in air containing 5% volume NO 2 at 150‹ C. for oxidation and dehydrogenation; (c) contacting the melt spin and stretch-oriented product from (b) with an atmosphere of 80% NH 3 and 20% O 2 at a temperature rising from room temperature to 220‹ at 1‹ C. per minute; and (d) stretch-orienting the melt-spun fibres from (a), contacting the fibres with 100% NH 3 at a temperature rising from room temperature to 200‹ C. at 1‹ C./min., and finally contacting with air containing 1% vol. NO 2 at 110‹ C. for 10 minutes.
GB23660/70A 1969-05-17 1970-05-15 Process for production of carbon fibers Expired GB1293900A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3772569 1969-05-17

Publications (1)

Publication Number Publication Date
GB1293900A true GB1293900A (en) 1972-10-25

Family

ID=12505463

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23660/70A Expired GB1293900A (en) 1969-05-17 1970-05-15 Process for production of carbon fibers

Country Status (3)

Country Link
US (1) US3666417A (en)
DE (1) DE2024063B2 (en)
GB (1) GB1293900A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3886263A (en) * 1972-02-03 1975-05-27 Agency Ind Science Techn Method for manufacture of heat-resistant fibers
JPS5644010B2 (en) * 1972-03-06 1981-10-16
JPS5213516B2 (en) * 1972-10-23 1977-04-14
US3903248A (en) * 1974-04-15 1975-09-02 Celanese Corp Process for the production of large denier carbon fibers
US4285831A (en) * 1976-10-05 1981-08-25 Toho Beslon Co., Ltd. Process for production of activated carbon fibers
JPS5836095B2 (en) * 1976-10-05 1983-08-06 東邦ベスロン株式会社 Activated carbon fiber manufacturing method
AU2003262818A1 (en) * 2002-08-22 2004-03-11 George G. Chase Nanofibers with modified optical properties
JP6590283B2 (en) * 2014-12-03 2019-10-16 国立研究開発法人産業技術総合研究所 Carbon fiber precursor fiber, carbon fiber, and method for producing carbon fiber
US10167913B2 (en) * 2015-04-29 2019-01-01 Goodrich Corporation High performance carbon fiber

Also Published As

Publication number Publication date
DE2024063B2 (en) 1972-07-13
DE2024063A1 (en) 1970-12-10
US3666417A (en) 1972-05-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees