| 摘要 |
PROBLEM TO BE SOLVED: To provide a polysiloxane-based composition which is excellent in crack resistance and cold impact resistance, in addition to moldability, transparency, heat resistance and light resistance, and particularly, which uses liquid polyhedral structure polysiloxane, and to provide a hardened material thereof.SOLUTION: A polysiloxane-based composition includes: as essential components, a polyhedral structure polysiloxane modified body (A) which is obtained by modifying a polyhedral structure polysiloxane-based compound (a) containing an alkenyl group and/or hydrosilyl group with a compound (b) having a hydrosilyl group and/or alkenyl group, which can be hydrosilylated with the component (a); and silicone particles (B). |
