Title:
アルキル変性カルボキシル基含有共重合体、当該共重合体を含む増粘剤、及び当該共重合体の製造方法
Document Type and Number:
Japanese Patent JP7198209
Kind Code:
B2
Abstract:
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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Inventors:
Rie Kiyomoto
Satoshi Nishiguchi
Ryosuke Murakami
Naoyuki Hashimoto
Satoshi Nishiguchi
Ryosuke Murakami
Naoyuki Hashimoto
Application Number:
JP2019539440A
Publication Date:
December 28, 2022
Filing Date:
August 24, 2018
Export Citation:
Assignee:
Sumitomo Seika Co., Ltd.
International Classes:
C08F220/06; C08K5/103; C08L33/02; C09K3/00
Domestic Patent References:
| JP2012007010A | ||||
| JP2011105833A | ||||
| JP59232107A |
Foreign References:
| WO2016056591A1 | ||||
| WO2013008627A1 | ||||
| WO2007055354A1 |
Attorney, Agent or Firm:
Junya Tanaka
Kaguya Mizutani
Kaguya Mizutani