| abstract |
(57) [Summary] [PROBLEMS] A paint film having no bleed-out, excellent weather resistance, low contamination, etc., and a film formed of various paints such as acrylic, silicone, and fluorine paints. Provided is an aqueous coating composition capable of forming a coating film having good adhesion. A general formula: CH 2 = CR1-COO- C Ethylenically unsaturated monomer (a) represented by (CH 3 ) 3 And an ethylenically unsaturated monomer (b) having a piperidyl group, an ethylenically unsaturated monomer (c) having an ultraviolet absorbing group, and an ethylenically unsaturated carboxylic acid monomer (d). An aqueous coating composition comprising a copolymer (A) obtained by polymerization. |