Dainippon Ink and Chemicals, Incorporated

Chuogoku Marine Paints, Ltd.

Eiichi Yoshikawa

Makoto Tsuboi

Satoshi Hiyoshi

Masataka Ooka

Naoya Nakamura

Masaaki Oya

Hiroo Tanaka

Yasuto Hikiji

Fumio Hamazu

Hidetaka Arimura

Yukio Kozono

Asako Oda

Hiroshi Matsuzawa

Yasuhiro Yuki

Koji Tokunaga

An antifouling coating composition having an excellent coating film strength and also has markedly superior antifouling properties, and a novel resin which is useful as a matrix resin for the composition are provided. The antifouling coating composition comprises a vinyl polymer (A) having, as a repeating unit, a structural unit (a) represented by the following formula (1):(in the formula (1), Xand Xeach independently represents an ester bond or a carbonyl group; Rrepresents an ethylene structure which forms a covalent bond with the carbonyl carbon atom and Xin the formula (1) at the same or adjacent carbon atom; Rrepresents a gem-alkylene group, a vic-alkylene group, an arylmethylidene group or an arylethylene group; and Rand Rrepresent an alkyl group or an aryl group, or a hydrocarbon group having a carbonyl group, an ether bond or an ester bond) and an antifouling agent (B).

Antifouling coating composition and novel resin

Disclosed is a silyl (meth)acrylate copolymer which comprises 20 to 80% by weight of (a) silyl (meth)acrylate constituent units (I), 0.01 to 40% by weight of (b) acrylic unsaturated monomer constituent units (II) and 5 to 79.9% by weight of &Ccirc; unsaturated monomer constituent units other than the constituent units (a) and (b). Also disclosed is a process for preparing the silyl (meth)acrylate copolymer, an antifouling paint composition comprising the copolymer, a coating film formed from the paint composition, a hull with the coating film and an antifouling method using the paint composition.

SILYL (METH) ACRYLATE COPOLYMERS, PROCESSES FOR PREPARING THE SAME, ANTIFOULING PAINT COMPOSITIONS CONTAINING THE SILYL (METH) ACRYLATE COPOLYMERS, ANTIFOULING COATING FILMS FORMED FROM THE ANTIFOULING PAINT COMPOSITIONS, ANTIFOULING METHODS USING THE ANTIFOULING PAINT COMPOSITIONS, AND HULLS OR UNDERWATER STRUCTURES COATED WITH THE ANTIFOULING COATING FILMS

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Otake, Japan

Eiichi Yoshikawa