Antifouling paint composition

Abstract

Abstract PURPOSE:To obtain the title composition which is nontoxic and gives a coating film with excellent antifouling properties, by mixing fine solid particles of a specified copolymer, a dimethylpolysiloxane, and a curing catalyst. CONSTITUTION:50-90wt.% radical-polymerizable monomer comprising a compound having a radical-polymerizable, ethylenically unsaturated bond (e.g., styrene) is copolymerized with 50-10wt.% (meth)acrylate-modified organopolysiloxane of the formula (wherein X is H or methyl; R<1> is a 1-10C divalent organic group; n is 5-100; m is 1-3) to give fine solid particles (A) of a copolymer. 100pts.wt. component A as dispersoid is mixed with 30-200pts. wt. dimethylpolysiloxane (B) having terminal hdyroxyl or alkoxy groups attached to an Si atom. and a viscosity (25 deg.C) of 100-100,000cP, as dispersing medium, and a curing catalyst (C) (e.g., dibutyltin laurate). If necessary, a low- energy additive, a crosslinking agent, a filler, etc. are added to this mixture.

Inventors

• 👤 Hiroshi Yoshioka

Bibliographic Details