| 摘要 |
PROBLEM TO BE SOLVED: To provide an organopolysiloxane composition for templating having excellent releasability to various kinds of resins. SOLUTION: The organopolysiloxane composition for the templating comprises (A) 100 pts.wt. of an organopolysiloxane having an alkenyl group bonded to at least two silicon atoms in a molecule, (B) a straight-chain organopolysiloxane having hydrogen atoms bonded to silicon atoms at both ends, (C) an organohydrodiene polysiloxane having hydrogen atoms bonded to at least three silicon atoms in a molecule, (D) an effective amount of a hydrosilylating reaction catalyst, (E) <=50 pts.wt. of finely divided powder silica having a specific surface area of >=50 m2/g, and (F) 0-20 pts.wt. of a nonfunctional polyorganosiloxane, the sum of the hydrogen atoms bonded to the silicon atoms existing in the components (B) and (C) being 1-5 per one alkenyl group in the component (A), and the number of the hydrogen atoms bonded to the silicon atoms in the component (B) being 20-70 mole% to the sum of the hydrogen atoms bonded to the silicon atoms in the components (B) and (C).
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