Harzzusammensetzung für kationisch elektroabscheidbaren Lack

摘要

A resin composition for cationically electrodepositable paint comprising, (A) a resin containing a hydroxyl group and a cationic group, (B) an epoxy resin with an epoxy group bound to an alicyclic skeleton and/or a bridged alicyclic skeleton, and (C) a finely divided gelled polymer obtained by, in the first step, emulsion polymerizing (I) a monomer component composed of (a) a vinylsilane, (b) a monomer containing at least two unsaturated groups in a molecule, (c) a monomer containing a vinylic double bond and a hydroxyl group, and (d) the other unsaturated monomer and in the second step, emulsion polymerizing (II) a monomer component composed of (e) a blocked monoisocyanate or polyisocyanate (f) a monomer containing a vinylic double bond and a hydroxyl group, and (g) the other polymerizable unsaturated monomer in the presence of the aqueous finely divided gelled polymer obtained in the first step, said polymer having a core-sheath structure. m