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:
Sep. 30, 2014
Filed:
Dec. 16, 2010
Takaharu Doumae, Otake, JP;
Yoshio Yamada, Otake, JP;
Masaaki Oya, Otake, JP;
Fumio Hamazu, Otake, JP;
Makoto Tsuboi, Otake, JP;
Takaharu Doumae, Otake, JP;
Yoshio Yamada, Otake, JP;
Masaaki Oya, Otake, JP;
Fumio Hamazu, Otake, JP;
Makoto Tsuboi, Otake, JP;
Chugoku Marine Paints, Ltd., Otake-shi, JP;
Abstract
The object of the present invention is to provide a silicone-based copolymer which has excellent long-term antifouling property even in a dry-wet alternate portion of a ship and the like or a portion thereof near the surface of water, is excellent also in mechanical strength and recoatability and exhibits high antifouling performance even if an antifouling agent is not added, and an antifouling coating composition containing the copolymer. The present invention provides, as the silicon-based copolymer, a metal-crosslinked organopolysiloxane-thio block vinyl copolymer [D] wherein an organopolysiloxane-thio block vinyl copolymer [C] having a carboxylic acid-containing vinyl copolymer block [A] formed from constitutional units derived from a polymerizable unsaturated carboxylic acid (a1) and constitutional units derived from at least one other polymerizable unsaturated monomer (a2) copolymerizable with the polymerizable unsaturated carboxylic acid, and a specific organopolysiloxane-thio block [B] is crosslinked with a divalent metal [M].