| 摘要 |
PROBLEM TO BE SOLVED: To provide an adhesive composition that forms an adhesive sheet having an excellent shear force and capable of suppressing a curl in an adherend when stuck onto the adherend, and also to provide the adhesive sheet and an optical member with the adhesive sheet stuck on a surface thereof for surface protection.SOLUTION: An adhesive composition includes onium salt whose melting point is 150°C or lower, and a polymer whose glass-transition temperature is 0°C or lower, as a base polymer. The onium salt is at least one kind selected from nitrogen-containing onium salt, sulfur-containing onium salt and phosphorus-containing onium salt. The onium salt includes onium cation having at least one alkyl group having 8 or more carbon atoms. The adhesive composition further includes organopolysiloxane having an alkylene oxide group whose number-average molecular weight is 10,000 or lower. |
