ADHESIVE COMPOSITION, ADHESIVE LAYER, ADHESIVE SHEET, SURFACE PROTECTIVE SHEET, OPTICAL SURFACE-PROTECTIVE SHEET, AND OPTICAL FILM WITH SURFACE PROTECTIVE SHEET

摘要

An adhesive composition includes: 100 parts by mass of a polymer (A) having a glass transition temperature of less than 0°C; 0.05-3 parts by mass of a (meth)acrylic polymer (B) which has a weight average molecular weight of 1000 or more but less than 30000, and which includes, as the monomer units thereof, a (meth)acrylic monomer having a alicyclic structure represented by general formula (1); 0.005-1 parts by mass of an ionic compound (C); and 0.01-2.5 parts by mass of a compound (D) having a polyoxyalkylene chain. General formula (1): CH2=C(R1)COOR2 (in general formula (1): R1 represents hydrogen or a methyl group; and R2 represents an alicyclic hydrocarbon group having an alicyclic structure).