TOP COATING COMPOSITIONS

摘要

A top coating composition comprising: (A) A hydroxyl-containing vinyl resin containing 40 to 90 wt.% of an aromatic hydrocarbon ring-containing vinyl monomer as a monomer component, optionally in combination with (B) a hydroxyl-containing polyester resin, (C) hexamethoxymethylmelamine and/or an etherified melamine resin obtained by substituting a part or the whole of the methoxy groups in hexamethoxymethylmelamine by an alkoxy group monovalent alcohol having at least 4 carbon atoms, (D) a particulate polymer having an average particle diameter of 0.01 to 1 .mu.m, and (E) a polysiloxane compound represented by the formula [I]. The coating composition of the present invention can form a coating film excellent in performance characteristics such as stain resistance, flexibility, weather resistance, scratch resistance, processability, acid resistance, gloss, etc., especially in stain resistance, acid resistance, flexibility and gloss.