Acrylic pressure-sensitive adhesive compositions and adhesive products

A excellent weather resistance, heat resistance, provides a pressure-sensitive adhesive composition and pressure-sensitive adhesive product having a water-resistant. A and at least one polymer block (A) 23-98 wt% consisting of alkyl methacrylate units methyl methacrylate, acrylic octyl acrylate having a carbon number of 6 to 18 alkyl group has at least one and polymer block (B) from 77 to 2 wt% consisting acid alkyl ester unit, a weight average molecular weight of 5,000 to 1,000,000, a molecular weight distribution from 1.0 to 1 acrylic block copolymer is .5, and the pressure-sensitive adhesive composition solubility parameter value contains a tackifying resin is 8 to 11, as well as adhesive products having an adhesive layer comprising a pressure-sensitive adhesive composition.