| abstract |
PROBLEM TO BE SOLVED: To provide an adhesive sheet having improved hot holding power under a relatively high temperature condition such as 80 ° C. and capable of stably holding the sheet for a long period of time. SOLUTION: In an adhesive sheet comprising a sheet-like base material having a front surface and a back surface opposed to the front surface, and an adhesive layer fixed to the back surface of the base material, the adhesive layer comprises an adhesive polymer And a heat-crosslinking component, wherein the adhesive polymer is a polymer having a hydroxyl group, a phenyl group, and a cross-linking functional group that reacts with the heat cross-linking component in the molecule. Adhesive sheet. |