Storage stable polyorganosiloxane compositions

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From silicon reactant having at least one...

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528 31, 528 32, 525478, C08G 7706

Patent

active

044725620

ABSTRACT:
The storage stability at ambient temperature of heat curable polyorganosiloxane compositions comprising a vinyl containing polyorganosiloxane, a polyorganosiloxane containing silicon-bonded hydrogen atoms and a platinum, palladium, or rhodium catalyst is improved using specified monohydrocarbyltrialkynyloxysilanes as storage stabilizers. The stabilizers do not interfere with curing of the compositions at elevated temperatures.

REFERENCES:
patent: 3383356 (1968-05-01), Nielsen
patent: 3445420 (1969-05-01), Kookootsedes et al.

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