Patent ID: 9650547
Date: 2017-05-16
CPC Classifications: B32B,C08F,C08K,C09J,Y10T

Claim:
1. A radiation-curable pressure-sensitive adhesive layer, wherein the radiation-curable pressure-sensitive adhesive layer is obtained from a radiation-curable pressure-sensitive adhesive comprising a radically polymerizable functional group containing a carbon-carbon double bond and a (meth)acryl-based polymer obtained by polymerizing a monomer component containing 30 to 90% by weight of an alkyl (meth)acrylate having an alkyl group of 13 to 22 carbon atoms at an ester end, wherein the alkyl group of the alkyl (meth)acrylate polymer having an alkyl group of 13 to 22 carbon atoms at an ester end is a branched alkyl group, and the monomer component further contains 5 to 25% by weight of a cyclic nitrogen-containing monomer, wherein in the radiation-curable pressure-sensitive adhesive layer after radiation curing, a shear storage modulus at 23° C. is 5.0×10