| abstract |
(57) Summary [Objective] An improved hydrosilylation reaction in which an ethylenically unsaturated epoxide and a SiH-containing silicone are reacted to produce an epoxysilicone product. In the present invention, a curable epoxysilicone composition is obtained by carrying out the reaction in the presence of a rhodium-containing selective catalyst that does not promote the ring-opening reaction of the oxirane ring of the ethylenically unsaturated epoxide starting material or epoxysilicone product. A method of manufacturing the same is provided. The present invention also provides a curable epoxysilicone composition prepared by the above method, the rhodium-containing selective catalyst described above, and two methods for preparing the catalyst. |