Resin composition for use in cationic electrodeposition coating composition
AssigneeKansai Paint Co., Ltd.
InventorsHidenori Sawada, Akihiko Shimasaki
Life of this patent
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Abstract
A resin composition used in an electrodeposition coating composition and containing an amine-modified vinyl resin (A) prepared by addition reaction of a secondary amine to an epoxy group-containing vinyl copolymer obtained by copolymerizing 2 to 30 parts by weight of an epoxy group-containing polymerizable unsaturated monomer (a-1) and 70 to 98 parts by weight of other polymerizable unsaturated monomer (a-2) copolymerizable with the monomer (a-1) by a catalytic chain transfer polymerization and having a weight average molecular weight of 2,000 to 20,000, and a blocked polyisocyanate (B).
Claims8
A resin composition used in an electrodeposition coating composition and containing an amine-modified vinyl resin (A) prepared by addition reaction of a secondary amine to an epoxy group-containing vinyl copolymer obtained by copolymerizing 2 to 30 parts by weight of an epoxy group-containing polymerizable unsaturated monomer (a-1) and 70 to 98 parts by weight of other polymerizable unsaturated monomer (a-2) copolymerizable with the monomer (a-1) by a catalytic chain transfer polymerization and having a weight average molecular weight of 2,000 to 20,000, and a blocked polyisocyanate (B).
Dependencies are inferred from the claim text.