ROOM TEMPERATURE STABLE, HEAT ACTIVATED ORGANOPOLYSILOXANE COMPOSITIONS INCLUDING A HYDROCARBON HAVING TERMINAL ACETYLENIC LINKAGE AND A CONJUGATED OLEFINIC LINKAGE

摘要

ROOM TEMPERATURE STABLE, HEAT ACTIVATEDORGANOPOLYSILOXANE COMPOSITIONSAbstractOrganopolysiloxane compositions which react by way of ahydrosilylation reaction to undergo an increase in viscosityhave improved resistance to reaction at room temperature(longer pot life) and/or an improved reaction rate atelevated temperature (shorter cure time) than analogouscompositions of the art by incorporating therein anunsaturated hydrocarbon having from 6 to 10 carbon atoms, aterminal acetylenic linkage and an olefinic linkageconjugated therewith. The resulting compositions are usefulfor preparing various cured siloxanes such as resins,elastomers, gels and foams.