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US 5,710,300 AGranted
Siloxy phosphonate as stabilizing agent for polydiorganosiloxanes
AssigneeDow Corning Corporation
InventorsDaniel Graiver, Arnold Wade Lomas
Life of this patent
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Abstract
A method for stabilizing a mixture comprising a polydiorganosiloxane and an alkali metal. The method comprises contacting a polydiorganosiloxane and an alkali metal with a siloxy phosphonate described by formula ##STR1## where each R.sup.1, R.sup.2, and R.sup.3 is an independently selected hydrocarbon comprising one to about 12 carbon atoms, n=0 or 1, and x, y, and z are integers, where x=1 to 1000, y=0 to 1000, and z=0 to 1000.
Claims14
A method for stabilizing polydiorganosiloxanes, the method comprising:
- contacting a mixture comprising a polydiorganosiloxane and an alkali metal with a stabilizing amount of a siloxy phosphonate described by formula ##STR5## where each R.sup.1, R.sup.2, and R.sup.3 is an independently selected hydrocarbon group comprising one to about twelve carbon atoms, n=0 or 1, x, y, and z are integers, where x=1 to 1000, y=0 to 1000, and z=0 to 1000.
Dependencies are inferred from the claim text.