| 摘要 |
PROBLEM TO BE SOLVED: To provide a composition for a silicone rubber, a silicone rubber composition and a silicone rubber, having significantly excellent flame retardancy. SOLUTION: The composition for a flame-retardant silicone rubber comprises (A) 100 pts.wt. of an organopolysiloxane represented by the average unit formula: R<SB>a</SB>SiO<SB>(4-a)/2</SB>and having at least two silicon atom-coupling alkenyl groups per molecule, (B) 10-100 pts.wt. of dry method silica hydrophobized with a cyclic dimethylsiloxane oligomer, (C) 0-12 pts.wt. of a terminal silanol group-encapsulated diorganosiloxane oligomer or a silanol group-containing organosilane per 100 pts.wt. of (B), (D) 5-250 pts.wt. of a calcium carbonate powder, (E) 0.5-1,000 pts.wt. of platinum or a platinum compound per one million pts.wt. of (A) in terms of platinum metal, and (F) 0.01-10 pts.wt. of a triazole compound. COPYRIGHT: (C)2006,JPO&NCIPI
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