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Title:
POLYACRYLONITRILE-BASED POLYMER, CARBON-FIBER-PRECURSOR FIBERS, AND PROCESS FOR PRODUCING CARBON FIBERS
Document Type and Number:
WIPO Patent Application WO/2016/151872
Kind Code:
A1
Abstract:
The present invention relates to a polyacrylonitrile-based polymer for carbon-fiber-precursor fibers which is obtained by polymerizing an acrylonitrile-based monomer composition that comprises acrylonitrile, a specific vinyl monomer, and a flameproofing enhancer as comonomers. Provided are: a polyacrylonitrile-based polymer that gives carbon-fiber-precursor fibers which, in a flameproofing step, can be flameproofed at high temperatures while being inhibited from breaking; carbon-fiber-precursor fibers obtained from the polyacrylonitrile-based polymer; and a process for producing carbon fibers.

Inventors:
TSUZUKI MASAHIRO (JP)
NOGUCHI TOMOHISA (JP)
WATANABE FUMITAKA (JP)
KOJIMA YUJI (JP)
Application Number:
PCT/JP2015/067461
Publication Date:
September 29, 2016
Filing Date:
June 17, 2015
Export Citation:
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Assignee:
TORAY INDUSTRIES (JP)
International Classes:
C08F220/44; C08F218/04; C08F224/00; D01F9/22
Foreign References:
JPS5143425A1976-04-14
JP2012201727A2012-10-22
JPH0734321A1995-02-03
JP2007092185A2007-04-12
JPS4948926A1974-05-11
JP2015124263A2015-07-06
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