Thermally stable organosiloxane compositions and method for preparing same

Abstract From the Canadian patent

Small amounts typically from about 0.001 to about, 0.05 percent by weight of certain aliphatic and cyclo-, aliphatic monodi- and triamines have been shown to retard the heatinduced discoloration to materials prepared by curing unfilled organosiloxane compositions comprising a specified class of vinyl-substituted polyorganosiloxanes an organo-, hydrogensiloxane and a platinum-containing hydrosilation catalyst. Preferred amines will also function as platinum catalyst inhibitors, and impart long term storage stability to these curable organosiloxane compositions when packaged in a single container.