| abstract |
PURPOSE: To obtain the title compsn. which gives a molded article exhibiting a low compression set even when the article is not subjected to the secondary thermal treatment by compounding a specific organopolysiloxane, a specific organohydrogenpolysiloxane, a specific six-membered cyclic compd., and a platinum catalyst. n CONSTITUTION: The title compsn. comprises 100 pts.wt. organopolysiloxane (A) having at least two groups directly attached to the silicon atom in the molecule, an organohydrogenpolysiloxane (B) having at least two hydrogen atoms directly attached to the silicon atom in the molecule in such an amt. that the molar ratio of the hydrogen atoms in component B to the alkenyl groups in component A is (0.5:1)-(20:1), a platinum catalyst in an amt. of 0.1-500ppm in terms of platinum based on the sum of components A and B, and 0.0001-1 pt.wt. compd. consisting of a six-membered cyclic compd. having at least one carbon-nitrogen unsatd. bond in the ring or a deriv. thereof. n COPYRIGHT: (C)1992,JPO&Japio |