Patent ID: 7976921

Claim:
A release liner comprising a substrate and, on at least one surface thereof, a release layer for laminating a pressure sensitive adhesive layer, wherein the release layer is formed from a release agent composition comprising: a poly(meth)acrylate (A) containing a structural unit (1) represented by the following formula (1); in which R 1 represents hydrogen or a methyl group and R 2 represents a long-chain alkyl group having 12 to 28 carbon atoms, a liquid polymer (B) and a crosslinking agent (C), wherein the poly(meth)acrylate (A) has a reactive functional group, the liquid polymer (B) has a no reactive functional group, the crosslinking agent (C) is a compound having a functional group capable of reacting with the reactive functional group, and wherein a crosslinking structure is formed in the release layer by a reaction of the poly(meth)acrylate (A) with the crosslinking agent (C).