| 摘要 |
<p>It is intended to provide a silicone rubber composition for a templating matrix which has an excellent mold release property, gives less stain to replicated products, and is excellent in defoaming of a material before curing. More particularly, it is a silicone rubber composition for a templating matrix containing (A) a polyorganosiloxane having 2 or more alkenyl groups binding to a silicon atom in one molecule and a viscosity at 25ºC of 500,000 to 1,000,000 centipoise (100 parts by weight); (B) a polyorganohydrogensiloxane having 3 or more hydrogen atoms binding to a silicon atom in one molecule (an amount such that the number of hydrogen atoms binding to a silicon atom per alkenyl group binding to a silicon atom in the component (A) is 0.4 to 4); (C) a platinum compound (1 to 200 ppm by weight in terms of platinum atom relative to the component (A)); and (D) a polydimethylsiloxane having an alkoxy group with 1 to 3 carbon atoms binding to a silicon atom at its molecular terminal and an average degree of polymerization of 5 to 500 (0.1 to 10 parts by weight).</p> |
