Use in cosmetics or in topical application of an aqueous dispers

Details Use in cosmetics or in topical application of an aqueous dispers Use in cosmetics or in topical application of an aqueous dispers

1995-09-13

1997-06-10

Bleutge, John C.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Cosmetic, antiperspirant, dentifrice

424 7012, 424 7017, 424 7803, 424DIG2, A61K 706, A61K 748

Patent

active

056373066

DESCRIPTION:

BRIEF SUMMARY
The invention relates to the use in cosmetics or in topical application of an aqueous dispersion based on nonvolatile organopolysiloxanes and on a crosslinked methacryloyloxyethyltrimethylammonium chloride polymer of homopolymer or copolymer with acrylamide type.
Silicone oils are already used in cosmetics as a lubricant in hair and skin treatment compositions. They are mainly polydimethylsiloxanes.
Cationic surfactants or polymers have been used for a long time in order to contribute softness to hair or to the skin or alternatively to facilitate disentangling of hair. Cationic compounds have the disadvantage, after repeated applications, of making the hair lank, giving it a sticky appearance, or of producing a sticky effect on the skin.
The Applicant Company has discovered, surprisingly, that the use of an aqueous dispersion based on nonvolatile organopolysiloxanes and on a crosslinked methacryloyloxyethyltrimethylammonium chloride polymer of homopolymer or copolymer with acrylamide type for the treatment of hair makes it possible to obtain shiny, silky and light hair whose disentangling, softness and hold properties are substantially improved. In addition, the drying time of the hair is shorter.
The use of this aqueous dispersion in the treatment of the skin also makes it possible to confer a soft feel on the latter, without a sticky effect.
The aqueous dispersions used in cosmetics or in topical application according to the present invention are spread over the skin and over hair much more easily than the compositions of the prior art based on cationic compounds.
The Applicant Company has also discovered that the cosmetic compositions in aqueous dispersion form according to the present invention were remarkably stable and that their cosmetic properties were retained even after several successive applications.
One subject of the invention therefore comprises the use, in the cosmetic treatment of hair or of the skin or in topical application, of an aqueous dispersion containing at least one organopolysiloxane defined hereinbelow and of [sic] one crosslinked methacryloyloxyethyltrimethylammonium chloride polymer of homopolymer or copolymer with acrylamide type.
Another subject of the invention relates to cosmetic or dermatological compositions for the treatment of hair or of the skin in the form of aqueous dispersions.
Another subject of the invention relates to processes for the cosmetic treatment of hair or of the skin using these compositions, according to the application desired.
Other subjects of the invention will become apparent in the light of the description and examples which follow.
The main subject of the present invention is the use, in the cosmetic treatment of hair or of the skin or in topical application, of an aqueous dispersion, characterized in that the latter contains at least, in a cosmetically or physiologically acceptable aqueous medium, one crosslinked methacryloyloxyethyltrimethylammonium chloride polymer of homopolymer or copolymer with acrylamide type and one nonvolatile organopolysiloxane chosen from polyalkylsiloxanes, polyarylsiloxanes, polyalkylarylsiloxanes, silicone gums and resins or organomodified polysiloxanes, with the exception of polysiloxanes carrying polyethyleneoxy and/or polypropyleneoxy, or carboxylate or bisulfite, groups.
The organopolysiloxanes used in the dispersions according to the present invention are nonvolatile organopolysiloxane oils or organosiloxane gum or resin organic solutions or alternatively emulsions or microemulsions containing these organopolysiloxanes.
Mention may be made, among the polyalkylsiloxanes, mainly of linear polydimethylsiloxanes: either, implied limitation, Silbione oils of the 70047 series marketed by Rhone-Poulenc, 47 V 500,000 oil from Rhone-Poulenc or certain Viscasil [sic] from General Electric, or from Rhone-Poulenc.
Mention may also be made, in this class of polyalkylsiloxanes, of polyalkylsiloxanes sold by the Company Goldschmidt under the names Abilwax 9800 and Abilwax 9801, which are polyalkyl(C.sub.1 -C.sub.20)siloxane

REFERENCES:
patent: 5160730 (1992-11-01), Dubief et al.
patent: 5221530 (1993-06-01), Janchitraponvej et al.

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