Patent ID: 6248828
Filing Date: 2001-06-19
Classification: C08G,C09D,Y10T

Abstract:
A paint superior in weather resistance obtained by reacting a polymeric compound having active hydrogen with a compound or composition having ultraviolet absorbability and curing function comprising as an essential component an isocyanate compound (A) which has a functional group having ultraviolet absorbability on a side chain and contains residual isocyanate group and which is obtained by reacting a part of isocyanate groups of an isocyanate prepolymer and/or monomer having at least two free isocyanate groups with an ultraviolet absorber having active hydrogen and represented by the formula (I) and/or the formula (2), and, if necessary, additionally comprising an isocyanate optional prepolymer (B) other than (A): ##STR3##wherein the formula (1), R.sup.1 and R.sup.2 each represent a hydrogen atom, a hydrogen group of 1-10 carbon atoms, or an alkoxy group of 1-10 carbon atoms, and R.sup.3 represents a hydrogen atom, a halogen group, an alkoxy group of 1-10 carbon atoms, a cyano group, or a nitro group; in the formula (2), R.sup.4 represents a hydrogen atom, a halogen group, an alkoxy group of 1-10 carbon atoms, or a hydrocarbon group of 1-10 carbon atoms, and R.sup.5 represents hydrogen atom, an alkoxy group of 1-10 carbon atoms, or a hydrocarbon group of 1-10 carbon atoms; andwherein the polymeric compound having active hydrogen is an acrylic polyol in which the monomer component constituting the acrylic polyol is a polymerizable unsaturated monomer having a hydroxyl group; a polymerizable unsaturated monomer having a cycloalkyl group; a polymerizable light stable monomer; a polymerizable ultraviolet absorbing monomer; and a prepolymer which is a monomer having a polymerizable unsaturated ethylene group and a weight average molecular weight of 1000-30000, and having 30% by weight or more of a basic functional group and/or 30% by weight or more of an acidic functional group based on the weight of the prepolymer.