PRESSURE-SENSITIVE ADHESIVE COMPOSITION AND PRESSURE-SENSITIVE ADHESIVE PRODUCT CONTAINING THE COMPOSITION, EXCELLENT IN TRANSPARENCY, LIFTING PROPERTY, AND PEELING PROPERTY

摘要

PURPOSE: A pressure-sensitive adhesive composition is provided. And a pressure-sensitive adhesive product containing the composition is also provided, which is excellent in transparency, lifting property, and peeling property. CONSTITUTION: The pressure-sensitive adhesive composition comprises: an acryl polymer which has a weight average molecular weight of 500,000-900,000 and contains a C4-C12 alkyl methacrylate as a main component of monomers and 1-10pts.wt.(based on the total monomers of 100pts.wt.) of a carboxyl group containing monomer as a monomer component; an oligomer which has a weight average molecular weight of 3,000-6,000 and contains an ethylene-based unsaturated monomer as a main component of monomers and 1-10pts.wt.(based on the total monomers of 100pts.wt.) of a carboxyl group containing monomer as a monomer component, wherein a homopolymer produced from the ethylene-based unsaturated monomer has a glass transition temperature of 60-190deg.C and a ring structure. And the pressure-sensitive adhesive product contains a pressure-sensitive adhesive layer containing the pressure-sensitive adhesive composition.