Patent ID: 6420477
Filing Date: 2002-07-16
Classification: C08F,C08L,C09D,C09J,Y10T

Abstract:
An aqueous coating composition for metal sheets which comprises, as indispensable components, the following (C) alone or two or more of the following (A), (B) and (C), (D) a water dispersible wax and water, and does not contain a photopolymerization initiator:(A) a polyurethane resin having an elongatedness of dry film of 100% or more (excluding the following (C)) (B) a synthetic resin having at least one ethylenic double bond (excluding the following (C)) (C) a polyurethane resin having an elongatedness of dry film of 100% or more and having at least one ethylenic double bond, the synthetic resin (B) being an epoxy-series resin, a polyester-series resin, a polyurethane-series resin, a polyvinyl alcohol-series resin, a polyamide-series resin, a poly (meth)acrylic acid-series resin, a (meth)acrylic acid-maleic acid copolymer-series resin or a silicone resin having at least one ethylenic double bond, or a diallyl phthalate-series resin, based on the total of the resins (A), (B) and (C), the total of (A) and (C) being 50 to 100% by weight and the total of (B) and (C) being 0.1 to 100% by weight, and the content of the water dispersible wax (D) being 0.1 to 20% by weight of the total solid components.