THERMOSETTING WATER-BASED COATING COMPOSITION AND METHOD OF FORMING COATING FILM

摘要

A thermosetting water-based coating composition which comprises (A) 100 parts by weight of a hydroxylated and carboxylated water-soluble resin having a weight-average molecular weight of 500-200,000, a hydroxy value of 1-200 mg-KOH/g, and an acid value of 10-100 mg-KOH/g and (B) 10-100 parts by weight of a brightening pigment and which is to be applied so as to give a cured film having a thickness of 3,000-8,000 nm, characterized in that the viscosity of the coating film applied which has a solid concentration of 40 wt.% is in the range of 4×10<SUP>2</SUP> to 1×10<SUP>4</SUP> mPa·s as measured at 20°C and a shear rate of 0.1 sec<SUP>-1</SUP>. Also provided is a method of coating film formation which comprises using the coating composition.