Alkyl-modified carboxyl group-containing copolymer, thickener containing said copolymer, and method for preparing said copolymer

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United States of America Patent

PATENT NO 11725072
APP PUB NO 20200207894A1
SERIAL NO

16643437

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Abstract

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Provided is an alkyl-modified carboxyl group-containing copolymer with which a neutralized viscous liquid can be prepared which has excellent dispersibility in water, has a viscosity that does not change greatly regardless of addition of an electrolyte, and has high transparency in the presence of an electrolyte. This alkyl-modified carboxyl group-containing copolymer contains: 100 parts by mass of a (meth)acrylic acid; 1.5-4.5 parts by mass of a (meth)acrylic acid alkyl ester, in which an alkyl group has 18-24 carbon atoms; and 0-0.1 parts by mass of a compound having two or more ethylenically unsaturated groups, wherein the copolymer contains 1.5-4.5 parts by mass of a nonionic surfactant.

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Patent Owner(s)

Patent OwnerAddress
SUMITOMO SEIKA CHEMICALS CO LTD346-1 MIYANISHI HARIMA-CHO KAKO-GUN HYOGO 675-0145

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hashimoto, Naoyuki Himeji, JP 18 314
Kiyomoto, Rie Himeji, JP 4 0
Murakami, Ryosuke Himeji, JP 35 24
Nishiguchi, Satoshi Tokyo, JP 6 3

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