| 摘要 |
Polyorganosiloxane compositions comprising: (A) a linear and/or branched polyorganosiloxane, with a viscosity of 50 to 100,000 cP at 25 DEG C., wherein 0.7 to 1.8 vinyl radicals bonded to silicon atoms, on average, are present in each molecule, and the remaining organic radicals bonded to silicon atoms are substituted or unsubstituted monovalent hydrocarbon radicals which does not include unsaturated aliphatic radicals, and 30% or more portion of the molecules has only one silicon-bonded vinyl radical in the molecule; (B) a polyorganohydrogensiloxane, wherein more than two hydrogen atoms bonded to silicon atoms, on average, are present in each molecule, in an amount such that the number of silicon-bonded hydrogen atoms may be 0.5 to 5 per vinyl radical in the molecule (A); (C) a catalytic amount of platinum compounds; and (D) anthraquinone dyes and/or azo dyes, in an amount from 1 to 2,000 ppm to (A). |
