Storage-stable liquid silicone rubber composition containing a p

Details Storage-stable liquid silicone rubber composition containing a p Storage-stable liquid silicone rubber composition containing a p

1987-08-31

1989-02-21

Marquis, Melvyn I.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

523216, 524861, 524862, 524588, 524847, 528 15, 528 31, 528 32, C08L 8304

Patent

active

048065927

ABSTRACT:
The liquid silicone rubber compositions of this invention comprise an organopolysiloxane having silicon-bonded alkenyl radicals, a reinforcing silica filler and, as the curing catalyst, a platinum-alkenylsiloxane complex wherein the pK.sub.a value of the catalyst when measured under a specifed set of conditions is from 2.0 to 9.0, inclusive. The compositions have an excellent storage stability as one part of a two-package liquid silicone rubber composition that cures by a platinum catalyzed hydrosilation reaction.

REFERENCES:
patent: 4500584 (1985-02-01), Modic
patent: 4585848 (1986-04-01), Evans et al.
patent: 4608395 (1986-08-01), Hamada et al.

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