| abstract |
An organopolysiloxane represented by the following general formula(1), where R1 represents an aliphatic, unsaturated univalent hydrocarbon group, R2 represents identical or different univalent hydrocarbon groups except for aliphatic unsaturated bonds, R3 represents an oxygen atom or a bivalent hydrocarbon group, R4 represents a univalent hydrocarbon group that contains an acryloxy or methacryloxy group, R5 may represent an alkyl group, alkoxyalkyl group, alkenyl group, or an acyl group; 'n' is an integer from 5 to 1000, and 'a' is 1 or 2, can be used for the preparation of a silicone composition as a main component of a composition or as a surface-treating agent for thermally conductive fillers, can be combined with large amounts of thermally conductive fillers, is easy to handle, and imparts to the composition appropriate thixotropy. |