Perfluorinated surface-active oligomers, process for their preparation and compositions containing these oligomers
AssigneeL'oreal
InventorsGuy Vanlerberghe, Henri Sebag
Life of this patent
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Abstract
Perfluorinated surface-active block or random oligomers of the formula ##STR1## where R denotes a C.sub.2 -C.sub.18 -hydrocarbon or-hydrofluorocarbon radical, Y denotes a C.sub.6 -C.sub.13 -fluorocarbon or-hydrofluorocarbon radical which can contain a chain oxygen atom, Z denotes a group which confers solubility in water and p and q denote integers or decimal numbers from 0.5 to 30 are provided. They are suitable for use in cosmetic compositions for the treatment of hair. They slow down the flow of sebum and the rate at which hair becomes greasy again.
Claims8
A perfluorinated surface-active oligomer having the formula
- wherein
- R is H(CH.sub.2).sub.m --, F(CF.sub.2).sub.n --CH.sub.2 --, F(CF.sub.2).sub.n --CH.sub.2 --CH.sub.2 -- or H(CF.sub.2).sub.n --CH.sub.2 -- wherein m and n represent an integer ranging from 1 to 16, or a group of the formula A(CF.sub.2).sub.n --(CH.sub.2).sub.m -- wherein A represents hydrogen or fluorine, m represents an integer ranging from 1 to 16 and n represents zero or an integer ranging from 1 to 16, with the proviso that if n is zero, A represents hydrogen and if n represents an integer from 1 to 16, m represents 1, 2 or 3.
- Y represents C.sub.x F.sub.2x+1, C.sub.x F.sub.2x+1 CH.sub.2 --, C.sub.x F.sub.2x+1 CH.sub.2 --O--CH.sub.2 --, C.sub.x F.sub.2x+1 CH.sub.2 --CH.sub.2 --O--CH.sub.2 -- or HC.sub.x F.sub.2x CH.sub.2 --O--CH.sub.2 --, wherein x represents an integer from 6 to 10,
- Z represents ##STR34## p and q, each independently, represent an integer or decimal number ranging from 0.5 to 30 and
- u represents 0 or 1.
A shampoo, conditioning rinse or conditioning lotion composition for the hair comprising in an aqueous or aqueous alcoholic vehicle a perfluorinated surface-active oligomer in an amount effective to impart an oleofugic effect to said hair, said perfluorinated surface-active agent having the formula ##STR35## wherein R is H(CH.sub.2).sub.m --, F(CF.sub.2).sub.n --CH.sub.2 --, F(CF.sub.2).sub.n --CH.sub.2 --CH.sub.2 -- or H(CF.sub.2).sub.n --CH.sub.2 -- wherein m and n represent an integer ranging from 1 to 16, or a group of the formula A(CF.sub.2).sub.n --(CH.sub.2).sub.m -- wherein A represents hydrogen or fluorine, m represents an integer ranging from 1 to 16 and n represents zero or an integer ranging from 1 to 16, with the proviso that if n is zero, A represents hydrogen and if n represents an integer from 1 to 16, m represents 1, 2 or 3,
- Y represents C.sub.x F.sub.2x+1, C.sub.x F.sub.2x+1 CH.sub.2 --, C.sub.x F.sub.2x+1 CH.sub.2 --O--CH.sub.2 --, C.sub.x F.sub.2x+1 CH.sub.2 --CH.sub.2 --O--CH.sub.2 -- or HC.sub.x F.sub.2x CH.sub.2 --O--CH.sub.2 --, wherein x represents an integer from 6 to 10,
- Z represents ##STR36## p and q, each independently, represent an integer or decimal number ranging from 0.5 to 30 and
- u represents 0 or 1.
A perfluorinated surface-active oligomer having the formula ##STR37##
Dependencies are inferred from the claim text.