| abstract |
(57) [Summary] [PROBLEMS] To provide good stress relaxation without adding a plasticizer and, when applied to a readily hydrolyzable material, to suppress deterioration due to hydrolysis and to achieve adhesion. Provided is a pressure-sensitive adhesive composition in which deterioration of the agent itself is suppressed, and a pressure-sensitive adhesive optical member using the same. (A) a weight average molecular weight of 500,000 to 2.5 million (Meth) acrylic ester copolymer alone or (A ') 100/100 by weight ratio of the (meth) acrylic ester copolymer to a (meth) acrylic ester oligomer having a weight average molecular weight of 1,000 to 10,000. 5-100: 1 No. 00, (B) a crosslinking agent, (C) a radical scavenger, and optionally (D) a pressure-sensitive adhesive composition containing a secondary antioxidant, and the pressure-sensitive adhesive composition on at least one surface of an optical member. Is an adhesive optical member provided with a layer. |