| abstract |
(57) [Summary] (Modified) [Purpose] To compound crosslinkable prepolymers with an epoxy functional compound, an epoxy functional compound and a curing agent, or an epoxy functional compound and a curing agent and a curing accelerator. This imparts superior mechanical properties to the cured composition. [Structure] (a) a polyene having at least two hydrosilation-reactive carbon-carbon double bonds, (b) a silicon compound having at least two hydrosilation-reactive ≡SiH groups, which is a cyclic polysiloxane. , A tetrahedral siloxysilanes, and a silicon compound having at least one member selected from the group consisting of linear polysiloxanes, wherein at least one of the polyene and the silicon compound has two or more hydrosilation-reactive sites. And (c) a compound having at least one epoxy functional group. |