Silicone-based pressure-sensitive adhesive and laminate having silicone-based pressure-sensitive adhesive layer

摘要

This silicone pressure-sensitive adhesive comprises at least: (A) an organopolysiloxane that has a viscosity at 25 °C of 100-10,000 mPa·s, inclusive, and has at least two alkenyl groups in each molecule; (B) an organopolysiloxane that has a viscosity at 25 °C exceeding 10,000 mPa·s and has at least two alkenyl groups in each molecule; (C) an organopolysiloxane that has, in each molecule, at least three hydrogen atoms bonded to a silicon atom; and (D) a catalyst for a hydrosilylation reaction. The silicone pressure-sensitive adhesive forms a pressure-sensitive adhesive layer that exhibits little transfer to an adherend when rereleased.