The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 01, 2021
Filed:
Nov. 22, 2017
Applicant:
Nippon Shokubai Co., Ltd., Osaka, JP;
Inventors:
Assignee:
Nippon Shokubai Co., Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08F 222/06 (2006.01); C08F 226/00 (2006.01); C08F 226/02 (2006.01); C08F 220/06 (2006.01); C08F 220/04 (2006.01); C02F 5/10 (2006.01); C08F 220/58 (2006.01); C08F 220/56 (2006.01); C08F 222/02 (2006.01);
U.S. Cl.
CPC ...
C08F 220/06 (2013.01); C08F 220/56 (2013.01); C08F 220/585 (2020.02); C08F 222/02 (2013.01); C08F 222/06 (2013.01); C02F 5/10 (2013.01); C08F 220/04 (2013.01); C08F 226/00 (2013.01); C08F 226/02 (2013.01);
Abstract
The present invention provides a carboxyl group-containing copolymer having a better calcium ion trapping ability and a better carbon black dispersing ability than any conventional carboxyl group-containing copolymers. The present invention relates to a carboxyl group-containing copolymer including a structural unit (a) derived from an unsaturated monocarboxylic acid monomer (A), a structural unit (b) derived from an unsaturated dicarboxylic acid monomer (B), and a structural unit (c) derived from a cationic monomer (C).