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US 6,444,745 B1Granted
Silicone polymer network compositions
AssigneeGeneral Electric Company
InventorsJohn A. Kilgour, Michael J. O'Brien, Atchara Chaiyawat
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Abstract
A silicone composition containing a polyethersiloxane block copolymer network and a fluid within the network is useful as a component of various personal care compositions.
Claims7
A silicone composition, comprising:
- (a) a polyethersiloxane block copolymer network, comprising:
- one or more polyether blocks, each comprising two or more structural units of the formula (I):
- —R1O— (I)
- wherein each R1 is independently a divalent hydrocarbon radical or R2, wherein R2 is a trivalent hydrocarbon radical, and
- one or more polysiloxane blocks, each comprising two or more structural units of the formula (II):
- —R32SiO2/2— (II)
- wherein each R3 is independently a monovalent hydrocarbon radical or R2, and
- wherein at least one polyether block of the copolymer network is bonded to at least one polysiloxane block of the copolymer network by a link according to formula (III):
- wherein the R2O unit of the structure of formula (III) is a unit of the at least one polyether block and the R2R3SiO2/2 unit of the structure of formula (III) is a unit of the at least one polysiloxane unit, and
- (b) a fluid within the network.
7 more elements
Dependencies are inferred from the claim text.