ALKYL-MODIFIED CARBOXYL GROUP-CONTAINING COPOLYMER, THICKENER CONTAINING SAID COPOLYMER, AND METHOD FOR PREPARING SAID COPOLYMER

WIPO Patent Application WO/2019/044679

A1

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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JP6357522	A (meth) acrylic comb-type polymer having a hydroxypolyalkylene glycol functional group, the above-mentioned use as a shear rate thinning agent in a coating liquid, and a coating liquid containing the above.
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KIYOMOTO RIE (JP)
NISHIGUCHI SATOSHI (JP)
MURAKAMI RYOSUKE (JP)
HASHIMOTO NAOYUKI (JP)

PCT/JP2018/031290

March 07, 2019

August 24, 2018

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SUMITOMO SEIKA CHEMICALS (JP)

C08F220/06; C08L33/02; C09K3/00; C09K23/52

WO2016056591A1	2016-04-14
WO2013008627A1	2013-01-17
WO2007055354A1	2007-05-18

JP2014047241A	2014-03-17
JP2012007010A	2012-01-12
JP2011105833A	2011-06-02
JPS59232107A	1984-12-26
JPS59232107A	1984-12-26
JPS516190A	1976-01-19
US20070055354A1	2007-03-08

See also references of EP 3677607A4

TANAKA, Junya et al. (JP)

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