Patent ID: 9692412
Date: 2017-06-27
CPC Classifications: B29C,B29K,B29L,B32B,C08G,C09D,C09J,H03K,Y10T

Claim:
1. A surface protective sheet having a protective film on a surface of a substrate, wherein the protective film is formed from a curable composition that is a mixture of at least a coating material and a curable resin, and the coating material is formed from a reaction product of at least compounds A, B, C and D, wherein: Compound A is an acrylic polymer having a hydroxyl group in a side chain thereof, having a glass transition temperature of 23° C. or higher, having a hydroxyl number of 5 to 70mgKOH/g and formed from a monomeric composition comprising 70 mass % or more of a (meth)acrylic acid alkyl ester; Compound B is a diisocyanate; Compound C is a polyether polyol; and Compound D is a photopolymerizable compound having both a hydroxyl group and a photopolymerizable group.