Aqueous intercoat composition
AssigneeKansai Paint Co., Ltd.
InventorsHiroaki Oda, Mikio Shimakawa, Hisashi Isaka, Naoji Matsumoto
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Abstract
This invention provides an aqueous intercoat composition comprising, as main components, (A) a polyester resin having a hydroxyl group and a carboxyl group in one molecule, (B) a blocked product of at least one polyisocyanate selected from a polymer of aliphatic polyisocyanate, an adduct of said polymer with an active hydrogen-containing compound and an adduct of aliphatic polyisocyanate with an active hydrogen-containing compound, and (C) water. The aqueous intercoat composition of the invention is capable of forming a coating film excellent in chipping resistance.
Claims8
An aqueous intercoat composition comprising, as main components, (A) a polyester resin having a weight average molecular weight of about 10,000 to about 20,000 and containing a hydroxyl group and a carboxyl group in one molecule, (B) a blocked product of at least one polyisocyanate selected from the group consisting of dimers to pentamers of aliphatic polyisocyanate, an adduct of said dimers to pentamers with an active hydrogen-containing compound and an adduct of aliphatic polyisocyanate with an active hydrogen-containing compound, and (C) water.
Dependencies are inferred from the claim text.