Patent ID: 8853315
Filing Date: 2014-10-07
Classification: C08K,C09J

Abstract:
1. A pressure-sensitive adhesive sheet made from an adhesive composition containing a carboxyl group-containing polymer having a carboxyl group, a plasticizer, and a calcium carbonate as a cross-linking curing agent, obtained by allowing the adhesive composition to moisture-cure, wherein the carboxyl group-containing polymer is obtained by polymerizing a monomer composition containing 45 to 90 mass % of an alkyl (meth)acrylate monomer, 0.1 to 10 mass % of a carboxyl group-containing vinyl monomer, and 5 to 50 mass % of a cyano group-containing vinyl monomer, and has pressure-sensitive properties obtained after the moisture curing, wherein the following gel fraction thereof is 30 mass % or more, Gel fraction: the percentage of the dry mass of the toluene-insoluble component at the time when the pressure-sensitive adhesive sheet is immersed in toluene for 24 hours with respect to the mass of the pressure-sensitive adhesive sheet before the immersion.