Electrically peelable adhesive composition and electrically peelable pressure sensitive adhesive sheet, and method for using electrically peelable pressure sensitive adhesive sheet

摘要

An electrically peelable pressure sensitive adhesive sheet has a pressure sensitive adhesive layer formed of an electrically peelable pressure sensitive adhesive composition comprising an acrylic copolymer (A) comprising 1 to 99 mass % of a constituent unit (a1) derived from a compound represented by the following general formula (a1), and a surfactant (B). The electrically peelable pressure sensitive adhesive sheet has high adhesion before voltage application, but the adhesion can be effectively decreased by voltage application for a short time.; wherein R¹ represents a hydrogen atom or a methyl group, R² represents an alkylene group having 1 to 5 carbon atoms that is unsubstituted or has a substituent, and R³ represents an alkyl group having 1 to 8 carbon atoms that is unsubstituted or has a substituent; and a value of n is an integer of 1 or more.