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US 5,672,338 AGranted
Cosmetic compositions made with hydroxy carbamate functionalized silicones
AssigneeGeneral Electric Company
InventorMarianne D. Berthiaume
Life of this patent
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Abstract
Carbonate and hydroxy carbamate functionalized silicones and a process for their preparation are described. Hydroxy carbamate functionalized silicones are useful in personal care and cosmetic compositions.
Claims20
A cosmetic composition comprising a silicone having the formula:
- M.sub.a M'.sub.b D.sub.c D'.sub.d T.sub.e T'.sub.f Q.sub.g
- where
- M=R.sub.3 SiO.sub.1/2,
- M'=R.sub.3-i R'.sub.i SiO.sub.1/2,
- D=R.sub.2 SiO.sub.2/2,
- D'=R.sub.2-j R'.sub.j SiO.sub.2/2,
- T=RSiO.sub.3/2,
- T'=R'SiO.sub.3/2, and
- Q=SiO.sub.4/2
- where the subscript i varies from 1 to 3, the subscript j is either 1 or 2 and the subscripts a, b, c, d, e, f, and g are zero or positive subject to the limitation that the sum of b+d+f is at least one and the sum of a+c+e+g is at least one, with R being an independently selected monovalent hydrocarbon radical for each M, D, and T and ranging from 1 to about 40 carbon atoms with R' defined as:
- --CH.sub.2 --CH.sub.2 --R"--CH(OH)--CH.sub.2 O.sub.2 CNR.sup.1 R.sup.2,
- --CH.sub.2 --CH.sub.2 --R"--CH(O.sub.2 CNR.sup.1 R.sup.2)--CH.sub.2 --OH or mixtures thereof
- where R" is a divalent radical having from one to about forty carbon atoms and R.sup.1 and R.sup.2 are each independently selected from the group consisting of hydrogen and one to forty carbon atom monovalent hydrocarbon radicals.
10 more elements
A cosmetic composition comprising a silicone having the formula:
- M.sub.a M".sub.b D.sub.c D".sub.d T.sub.e T".sub.f Q.sub.g
- where
- M=R.sub.3 SiO.sub.1/2,
- M"=R.sub.3-i R'".sub.i SiO.sub.1/2,
- D=R.sub.2 SiO.sub.2/2,
- D"=R.sub.2-j R'".sub.j SiO.sub.2/2,
- T=RSiO.sub.3/2,
- T"=R'"SiO.sub.3/2, and
- Q=SiO.sub.4/2
- where the subscript i varies from 1 to 3, the subscript j is 1 or 2 and the subscripts a, b, c, d, e, f, and g are zero or positive subject to the limitation that the sum of b+d+f is at least one and the sum of a+c+e+g is at least one, with R being an independently selected monovalent hydrocarbon radical for each M, D, and T and ranging from 1 to about 40 carbon atoms with R'"defined as:
- ##STR10## where R" is a divalent radical having from one to about forty carbon atoms.
8 more elements
Dependencies are inferred from the claim text.