The adhesion agent composition, use that the pressure sensitive adhesive sheet and the sticky optical component

摘要

PROBLEM TO BE SOLVED: To provide a pressure-sensitive adhesive composition excellent in adhesive properties to an adherend, having good stress relaxation, and capable of following expansion and contraction of a base material, to provide a pressure-sensitive adhesive sheet having a layer comprising the pressure-sensitive adhesive composition, and to provide a pressure-sensitive adhesive optical member having the same layer.;SOLUTION: This pressure-sensitive adhesive composition contains (A) an (meth) acrylic acid ester-based copolymer and (B) a crosslinking agent which comprises an adduct material of a polyisocyanate compound and has such a weight ratio of the content of the adduct material having two functional groups to that of the adduct material having three or more functional groups to be in a range of 100:0 to 10:90. The pressure-sensitive adhesive sheet is prepared by applying the pressure-sensitive adhesive composition to at least one of both surfaces of a base material for sheet to form a pressure-sensitive adhesive layer, and the pressure-sensitive adhesive optical member is prepared by applying the same composition to at least one of both surfaces of a sheet-like optical member to form the same layer.;COPYRIGHT: (C)2001,JPO