Patent ID: 9695338
Date: 2017-07-04
CPC Classifications: B32B,B44C,C08G,C09D,C09J,Y10T

Claim:
1. A decorative sheet comprising a surface layer and an adhesive layer, wherein the surface layer is formed by coating a crosslinked polyurethane resin on a surface and drying the crosslinked polyurethane resin; wherein the crosslinked polyurethane resin is obtained by crosslinking a straight chain polyurethane resin using 0.1 to 2.0 equivalents of a curing agent per acid of carboxyl groups in the polyurethane resin; the straight chain polyurethane resin is a reaction product of a polyurethane prepolymer and a diamine chain extender agent, the polyurethane prepolymer being a reaction product of a polycarbonate diol having an alicyclic structure, an aliphatic diol having a carboxyl group, and an isocyanate including 4,4′-dicyclohexylmethane diisocyanate; and the straight chain polyurethane resin has a molecular weight in the range of from about 50,000 to about 550,000 and an acid value in the range of from about 20.0 to about 30.0 mg.KOH/g.