Process for the manufacture of non-reverting elastomeric...

Details Process for the manufacture of non-reverting elastomeric... Process for the manufacture of non-reverting elastomeric...

C - Chemistry, Metallurgy

08

G

402/17, 400/5319

C08G 77/38 (2006.01) C08K 5/098 (2006.01)

Patent

CA 1104745

RS(1255 )MK PROCESS FOR THE MANUFACTURE OF NON-REVERTING ELASTOMERIC ORGANOPOLYSILOXANES Abstract of the Disclosure - Heat-resistant, poly- organosiloxane elastomers are prepared by reacting a linear, difunctional polyorganosiloxane with a silicon-containing crosslinking agent and a stannous salt of a monoethylenically unsaturated monohydroxy monocarboxylic acid as the curing catalyst. A filler can optionally be included in the formulation. The present catalysts are unique in that they impart a relatively long working life to the uncured composition yet do not catalyze the depolymerization reaction at elevated temperatures as do conventional organotin catalysts such as dibutyltin dilaurate. -i-

323544

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