| abstract |
The present invention provides an acrylic pressure-sensitive adhesive composition that has excellent adhesion to a low-polar adherend, exhibits high cohesive strength, and has no problems in weather resistance and heat resistance. The following formula (AB) n -A [Wherein A represents the following formula: CH 2 ═C (R 1 ) CONR 2 R 3 (In the formula, R 1 represents a hydrogen atom or a methyl group, and R 2 and R 3 represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms.) And B represents the following formula CH 2 = CHCOOR 4 (Wherein R 4 represents an alkyl group having 4 to 12 carbon atoms) or the following formula: CH 2 ═C (CH 3 ) COOR 5 (Wherein R 5 represents an alkyl group having 8 to 22 carbon atoms) and represents a polymer block obtained by polymerizing a (meth) acrylate monomer represented by the formula (n), and n represents a natural number. A block copolymer represented by the formula: [Selection figure] None |