Method for producing acrylonitrile-based fiber

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United States of America

PATENT NO 11286580
APP PUB NO 20200190701A1
SERIAL NO

16491476

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Abstract

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The present invention relates to a method for producing an acrylonitrile-based fiber, the method including: providing a polymer solution including an acrylonitrile-based copolymer containing a carboxylic acid group; mixing 100 parts by weight of the polymer solution with 1 to 6 parts by weight of a hydrophilization solution containing an organic solvent and ammonia water in a weight ratio of 95:5 to 60:40 to prepare a spinning stock solution; and spinning the spinning stock solution. The method controls the viscosity of the spinning stock solution to improve the stretchability and strength of the acrylonitrile-based fiber, and suppresses the occurrence of gelation.

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Patent Owner(s)

Patent OwnerAddress
LG CHEM LTDSEOUL 07336

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bak, Chang Hong Daejeon, KR 4 0
Cho, Jeong Hun Daejeon, KR 14 7
Cho, Joon Hee Daejeon, KR 11 2
Han, Hye Jin Daejeon, KR 13 64
Jo, Ki Yeon Daejeon, KR 5 45
Kim, Sang Jin Daejeon, KR 219 531

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