| abstract |
PROBLEM TO BE SOLVED: To provide an acrylic pressure-sensitive adhesive composition excellent in adhesion to a foam base material having a high expansion ratio and excellent in heat resistance, and a pressure-sensitive adhesive product using the same. SOLUTION: The alkyl (meth) acrylate monomer having an alkyl group having 2 to 18 carbon atoms (A- 1) 59.5 to 98.9% by weight, 0.01 to 0.5% by weight of a vinyl monomer (A-2) containing a hydroxyl group in a molecule and capable of being radically copolymerized with the above (A-1) , Polymerizable polymers (A-3) 1 to 10 represented by the general formula (1) Acrylic copolymer (A) 1 obtained by radical copolymerization of 0 to 30% by weight of a vinyl monomer (A-4) copolymerizable with the above (A-1). A pressure-sensitive adhesive composition comprising 00 parts by weight, 2 to 30 parts by weight of a tackifier resin (B) having a softening point of 120 to 145 ° C, and 0.01 to 5 parts by weight of an isocyanate-based crosslinking agent (C). |