Patent ID: 7244511
Filing Date: 2007-07-17
Classification: B05D,C08G,C09D,Y10T

Abstract:
1. A color steel sheet with embossed patterns on one side, comprising: a steel sheet substrate; a zinc or zinc alloy-plated layer; a non-chromate or chromate pretreated layer; a primary coat paint layer comprising an oil-free polyester, polyisocyanate, epoxy, pigment, additives and solvents, the oil-free polyester having a number-average molecular weight of 15,000˜25,000, a glass transition temperature (Tg) of 10˜30° C. and an OH value of 5˜20; a color base paint layer comprising a modified oil-free polyester compound, pigment, additives and solvents, the modified oil-free polyester compound being formed by reacting melamine with an oil-free polyester having a number-average molecular weight of 8,000˜20,000, a glass transition temperature (Tg) of 20˜45° C. and an OH value of 15˜40; a printed layer; and a top coat clear paint layer.