申请人:Mitsubishi Rayon Co., Ltd.
公开号:EP2520620A1
公开(公告)日:2012-11-07
It is an object of the present invention to provide an antifouling coating resin dispersion which has excellent storage stability and water resistance in sea water, can exhibit an antifouling effect over a long period of time, and has self-polishing properties with excellent adhesiveness. A method for producing the antifouling coating resin dispersion according to the present invention includes the steps of: producing a polymer (A) containing a divalent metal; and dispersing the polymer (A) in a dispersion medium containing water or a mixture of water and an organic solvent. The polymer (A) containing a divalent metal is obtained by subjecting 1 to 40% by mass of a divalent-metal-containing ethylenically unsaturated monomer (a1), 0 to 8% by mass of a carboxyl-group-containing ethylenically unsaturated monomer (a2), 0 to 40% by mass of a hydroxyl-group-containing ethylenically unsaturated monomer (a3), and 99 to 22% by mass of another ethylenically unsaturated monomer (a4) to solution polymerization in a multi-stage which includes two or more stages.
本发明的目的是提供一种防污涂料树脂分散体,该分散体在海水中具有优异的贮存稳定性和耐水性,可长期显示防污效果,并具有自抛光性能和优异的粘附性。根据本发明生产防污涂料树脂分散体的方法包括以下步骤:生产含有二价金属的聚合物(A);将聚合物(A)分散在含有水或水与有机溶剂混合物的分散介质中。含二价金属的聚合物(A)是通过以下方法获得的:1-40%(质量)的含二价金属的乙烯基不饱和单体(a1),0-8%(质量)的含羧基的乙烯基不饱和单体(a2)、0 至 40%(质量百分比)的含羟基的乙烯基不饱和单体(a3)和 99 至 22%(质量 百分比)的另一种乙烯基不饱和单体(a4)进行溶液聚合。