| 摘要 |
Provided are an adhesive composition that has excellent adhesive force, cohesive force, tack, and holding strength and an adhesive article that uses the adhesive composition. The adhesive composition contains: (i) an acrylic block copolymer (I) that includes at least one polymer block (A) comprising a methacrylic acid ester unit and at least one polymer block (B) comprising an acrylic acid ester unit, that has a weight-average molecular weight of 30,000-300,000, and in which 80 mass% or more of the acrylic acid ester unit that constitutes the polymer block (B) is the acrylic acid ester (1) unit represented by formula (1), namely, CH2=CH-COOR2 (in the formula, R2 represents an organic group having 7-12 carbon atoms); and, relative to 100 parts by mass of the acrylic block copolymer (I), (ii) 1-300 parts by mass of a tackifier resin and (iii) 1-200 parts by mass of at least one plasticizer selected from among process oils, organic acid esters, and oligomers thereof. |
