Storage stable polyorganosiloxane compositions

摘要

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.