| abstract |
The present invention provides a self-adhesive polyorganosiloxane composition having high adhesion strength to noble metal substrates such as Ag and Au. The self-adhesive polyorganosiloxane composition of the present invention comprises (A) 100 parts by weight of a polyorganosiloxane having an alkenyl group and (B) a polyorganohydrogensiloxane having one alkenyl group as the component (A). The amount of hydrogen atoms per contact is 0.1 to 4.0, (C) a platinum-based catalyst as a catalyst amount, (D) an adhesion promoter, (D1) (i) an epoxy group, a glycidoxy group , Isocyanuric acid derivatives each having one or more functional groups selected from alkoxysilyl groups and (ii) one or more functional groups selected from crosslinkable vinyl groups and hydrosilyl groups (Si-H groups) Each contains 5 parts by weight. [Selection figure] None |