METHOD FOR PREPARING ACRYLONITRILE-BASED POLYMER FOR MANUFACTURE OF CARBON FIBER

Title:

METHOD FOR PREPARING ACRYLONITRILE-BASED POLYMER FOR MANUFACTURE OF CARBON FIBER

Document Type and Number:

WIPO Patent Application WO/2019/066360

Kind Code:

A1

Abstract:

The present invention relates to a method for preparing an acrylonitrile-based copolymer for a carbon fiber, comprising the steps of: preparing a reaction solution comprising a (meth)acrylonitrile-based monomer and a first reaction solvent; initiating polymerization by primarily injecting an initiator into the reaction solution; and secondarily injecting an initiator and carrying out polymerization when the polymerization conversion rate reaches 70-80%.

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Inventors:

KIM CHANG HUN (KR)
KIM HYUN MIN (KR)
CHO JEONG HUN (KR)
CHO JOON HEE (KR)

Application Number:

PCT/KR2018/011007

Publication Date:

April 04, 2019

Filing Date:

September 18, 2018

Export Citation:

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Assignee:

LG CHEMICAL LTD (KR)

International Classes:

C08F20/44; C08F2/44; D01F9/22

Foreign References:

JP2008214562A	2008-09-18
JP2012025837A	2012-02-09
JP2012025810A	2012-02-09
KR20090068370A	2009-06-26
JP2007197672A	2007-08-09
JP2010235794A	2010-10-21
JP2011213772A	2011-10-27

Other References: