| abstract |
Disclosed is a silicon-containing curable composition that is excellent in heat resistance, adhesion, colorability, and transparency, and is useful for electrical and electronic materials. One or more cyclic siloxane compounds (α) represented by the following formula (1) and one or more compounds (β) represented by the following formula (2) are obtained by hydrosilylation reaction. Prepolymer (A) containing 2 or more Si-H groups in the molecule; Cyclic siloxane compound containing 2 or more carbon-carbon double bonds having reactivity with Si-H groups ( B); a polysiloxane compound (C) different from the prepolymer (A) and the cyclic siloxane compound (B); and a hydrosilylation catalyst (D). (In Formula (1), R < 1 > -R < 3 > represents a C1-C6 alkyl group or a phenyl group, a represents the number of 2-10, b represents the number of 0-8. (In (2), n represents 1 or 2.) [Selection figure] None |