| 摘要 |
A curable organopolysiloxane composition comprising: (A) an novel organopolysiloxane represented by the following average structural formula: R1aSiO(4-a)2 {wherein R1 represents a substituted or non-substituted monovalent hydrocarbon group, an alkoxy group, a hydroxyl group, or an organopolysiloxane residue of the following general formula: —X—(SiR2O)mSiR23 (wherein R2 are the same or different, substituted or unsubstituted monovalent hydrocarbon groups; X represents oxygen atoms or a bivalent hydrocarbon group; and ‘m’ is an integer equal to or greater than 1); however, at least one R1 in one molecule is the aforementioned organopolysiloxane residue, at least one R1 is a monovalent hydrocarbon group having aliphatic carbon-carbon double bonds, and ‘a’ is a positive number that satisfies the following condition: 0<a<2)}; (B) an organic silicon compound having in one molecule at least two silicon-bonded hydrogen atoms; and (C) a hydrosilylation catalyst; is capable of forming a cured product of high flexibility.
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