SOLVENT-FREE SILICONE ADHESIVE AGENT COMPOSITION AND ADHESIVE ARTICLE

摘要

Provided is a solvent-free silicone adhesive agent composition comprising: (A) an organopolysiloxane which has at least two alkenyl-group-containing organic group per molecule in an amount of 40 to 95 parts by mass; (B) an organopolysiloxane which is composed of a R2 3SiO1/2 unit (wherein R2's independently represent a monovalent hydrocarbon group that has 1 to 10 carbon atoms and does not have an aliphatic unsaturated bond or an alkenyl group that has 2 to 6 carbon atoms) and a SiO4/2 unit and has a (R2 3SiO1/2 unit)/(SiO4/2 unit) ratio of 0.6 to 1.0 by mole in an amount of 5 to 60 parts by mass, wherein the total amount of the components (A) and (B) is 100 parts by mass; (C) an organohydrogenpolysiloxane which has at least three Si-H groups per molecule and has a Si-H modification ratio of 30 mol% or more in such an amount that ratio of the amount of the Si-H groups to the amount of the alkenyl groups in the component (A) becomes 0.2 to 10 by mole; and (D) a platinum group metal catalyst. The solvent-free silicone adhesive agent composition can be cured at a temperature as low as 100°C or lower