| abstract |
The present invention provides an adhesive that has excellent antistatic performance and does not have a problem of contaminating an adherend or changing adhesive strength over time. SOLUTION: At least one selected from a (meth) acrylate copolymer (A) and a urethane resin (U) in which a cyclic amidinium cation (Q) is bonded by an ionic bond or a covalent bond. A pressure-sensitive adhesive (X) characterized by containing. Of the cyclic amidinium cation (Q), 1,5-diazabicyclo [4,3,0] -5-nonenium and 1,8-diazabicyclo [5,4,0] -7-undecenium are particularly preferable. [Selection figure] None |