Method for producing carboxyl-group-containing nitrile rubber

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United States of America Patent

PATENT NO 11161920
SERIAL NO

16495003

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Abstract

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A method of producing a carboxyl group-containing nitrile rubber including a coagulation step of coagulating a carboxyl group-containing nitrile rubber component by mixing a monovalent metal salt and a polymer flocculating agent into a carboxyl group-containing nitrile rubber latex having an iodine value of 120 or less, wherein the monovalent metal salt is compounded in an amount of 3 to 25 parts by weight and the polymer flocculating agent is compounded in an amount of 0.01 to 10 parts by weight relative to 100 parts by weight of a rubber solid content in the latex, and a weight ratio of the monovalent metal salt/the polymer flocculating agent is in the range of 10 to 500

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Patent Owner(s)

Patent OwnerAddress
ZEON CORPORATION6-2 MARUNOUCHI 1-CHOME CHIYODA-KU TOKYO 1008246

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Herai, Taiki Tokyo, JP 1 1
Yoshimura, Tsutomu Tokyo, JP 41 583

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