Inhibited precious metal catalyzed organopolysiloxane...

Details Inhibited precious metal catalyzed organopolysiloxane... Inhibited precious metal catalyzed organopolysiloxane...

C - Chemistry, Metallurgy

08

L

117/187, 400/515

C08L 83/04 (2006.01) C08G 77/06 (2006.01) C08K 5/23 (2006.01)

Patent

CA 1280236

INHIBITED PRECIOUS METAL CATALYZED ORGANOPOLYSILOXANE COMPOSITIONS Abstract of the Invention There are provided curable compositions, comprising (a) an organopolysiloxane base polymer, (b) an organohydrogenpolysiloxane crosslinking agent, (c) an effective amount of precious metal containing catalyst, and (d) an azo compound wherein at least one -N = N - moiety is not part of a cyclic structure, and preferably is alpha to an electron withdrawing group such as carbonyl, in an amount effective to inhibit reaction of said organopolysiloxane base polymer and said organohydrogenpolysiloxane crosslinking agent. Articles of manufacture as well as methods for prepara- tion of such compositions and articles are also provided.

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