| 摘要 |
PURPOSE:The titled composition useful as a constituent material for a parent mold for templating useful in molding of FRP, obtained by blending a liquid polyorganosiloxane with a specific amount of hollow fine particles of silicate glass having specific particle diameter. CONSTITUTION:A composition consisting of (A) 100pts.wt. polyorganosiloxane containing two or more units shown by formula I(R<1> is alkenyl; R<2> is monofunctional hydrocarbon group containing no aliphatic unsaturated bond; a is 1 or 2; b is 0-2; a+b is 1-3), (B) a polyorganohydrogene siloxane which contains a unit shown by formula II(R<3> is monofunctional hydrocarbon group; c is 0-2; d is 1 or 2; c+d is 1-3) and 3 hydrogens bonded to Si in an amount to give 0.5-4 hydrogens bonded to Si based on R<1> of the formula I, (C) 1-100ppm calculated as Pt based on the component A of a platinum catalyst, (D) 0.1-20pts.wt. hollow fine particles of silicate glass having 60-100mum average particle diameter and (E) 0.1-300pts.wt. inorganic filler. |
