DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE SHEET, PRODUCTION METHOD OF DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE SHEET, PRESSURE-SENSITIVE ADHESION TYPE OPTICAL FUNCTIONAL FILM AND PRESSURE-SENSITIVE ADHESION TYPE HARD COAT FILM

摘要

The present invention provides a double-sided pressure-sensitive adhesive sheet, which includes a pressure-sensitive adhesive layer formed from a pressure-sensitive adhesive composition that contains an acrylic polymer constituted from one or more monomer components containing a (meth) acrylic acid alkyl ester wherein the number of carbons of the alkyl group is from 1 to 12 and/or a (meth)acrylic acid alkoxyalkyl ester, in which the soluble fraction (sol fraction) obtained by ethyl acetate extraction of the pressure-sensitive adhesive layer has a weight average molecular weight of from 50,000 to 500,000, and the pressure-sensitive adhesive layer has a thickness unevenness of the whole surface of 0.030 m or less.