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:
May. 26, 2026
Filed:
Sep. 02, 2021
Nippon Paint Automotive Coatings Co., Ltd., Osaka, JP;
Otsuka Chemical Co., Ltd., Osaka, JP;
Shinsuke Akizuki, Hirakata, JP;
Yasunori Miwa, Hirakata, JP;
Sachiko Morimoto, Hirakata, JP;
Yuki Inoue, Hirakata, JP;
Satoru Masumoto, Tokushima, JP;
NIPPON PAINT AUTOMOTIVE COATINGS CO., LTD., Osaka, JP;
OTSUKA CHEMICAL CO., LTD., Osaka, JP;
Abstract
The present invention provides a water-repellent coating composition which enables easy removal of dirt while having good appearance due to high compatibility of a water-repellent component with other materials. The present invention provides a coating composition, comprising a siloxane group-containing polymer (A) and a crosslinking agent (B), wherein the siloxane group-containing polymer (A) is a block copolymer comprising an A block and a B block, and containing, in the A block, at least a structural unit derived from a siloxane group-containing vinyl monomer (a) and containing, in the B block, a structural unit derived from a hydroxyl group-containing vinyl monomer (b) and, as necessary, a structural unit derived from another vinyl monomer (c) copolymerizable with the vinyl monomers (a) and (b), and is a copolymer having a molecular weight distribution (Mw/Mn) of 2.0 or less and polymerized by living radical polymerization.