Drug – bio-affecting and body treating compositions – Effervescent or pressurized fluid containing – Organic pressurized fluid
Patent
1998-06-09
2000-03-21
Page, Thurman K.
Drug, bio-affecting and body treating compositions
Effervescent or pressurized fluid containing
Organic pressurized fluid
424 43, 424 7011, 424 7012, 424 7019, 424 7022, A61K 706, A61K 711, A61K 912
Patent
active
060399333
DESCRIPTION:
BRIEF SUMMARY
The invention relates to cosmetic compositions packaged in an aerosol device in the presence of a propellant and capable of forming a foam comprising, in a cosmetically acceptable medium, at least one fixing polymer, at least one oxyalkylenated silicone and at least 30% by weight of a water-soluble solvent having a boiling point of less than 85.degree. C., to the resulting foams and to a process for the cosmetic treatment of keratinous fibres, such as hair or eyelashes, characterized in that it consists in applying, to keratinous fibres, the said foam resulting from the expansion in the air of the cosmetic composition as defined above.
Cosmetic compositions pressurized in aerosol devices, under conditions such that they can form a foam at the outlet of the device, are well known and are used in particular in the treatment of hair and/or of the skin. Such compositions will be known in the continuation of the description as "aerosol foam".
These foams generally make it possible to obtain a good distribution of the cosmetic compositions over the hair and they are, in addition, easy to use and more economical as regards the amount of product used in comparison with lotions.
These foams must be sufficiently stable not to liquefy quickly and must also disappear rapidly, either spontaneously or during the massaging which is used to make the composition penetrate and/or distribute over keratinous substances and more particularly hair.
Hair styling and/or form-retention foams generally contain at least one polymer, preferably an anionic, non-ionic or amphoteric polymer, which contributes fixing properties to the hair.
These polymers are generally non-foaming or weakly foaming and, in order to obtain an aerosol foam, it is thus necessary to add a foaming agent and/or an agent which improves the quality of the foam.
Unlike conventional aerosol fixing hair sprays, these compositions have the disadvantage of not allowing hair to be fixed in a shape-which has already been prepared. Neither do they allow the hairstyle to be shaped while being simultaneously fixed. This is because these compositions are essentially aqueous and their application wets the hair and can thus not maintain the initial shape of the hairstyle. A subsequent blow-drying or drying is thus necessary in order to shape and fix the hairstyle. Moreover, the hair is generally stuck together in clumps and the hairstyle does not withstand mechanical deformations, such as wind or rubbing actions.
It is known that the presence of a solvent, such as ethanol, makes it possible to decrease the drying time of essentially aqueous compositions. However, it is also known that the presence of a large amount of ethanol does not allow compositions to be obtained in the foam form using the foaming polymers or surfactants conventionally used to form foams.
The aim of the present invention is thus to provide a composition which forms a foam at the outlet of an aerosol device, which is easily and quickly distributed and which makes it possible to fix a lock or a hairstyle in the desired shape without prolonged blow-drying or drying.
To this end, the Applicant Company has now just discovered that compositions comprising at least one fixing polymer, at least one oxyalkylenated silicone and at least 30% of a water-soluble solvent, such as ethanol, unexpectedly and surprisingly form, in the presence of a propellant, foams which result in particularly advantageous properties, in particular a fixing of the hairstyle and an improvement in the hold of the hairstyle over time. The hair has more volume, is glossy and exhibits a natural feel. The compositions also have the advantage of not dispersing particles in suspension in the atmosphere.
The subject of the present invention is thus a cosmetic composition in the pressurized state in an aerosol device in the presence of a propellant capable of forming a foam at the outlet of the said device, which is characterized in that it comprises, in a cosmetically acceptable medium, at least one fixing polymer, at least one oxyalkylenated si
REFERENCES:
patent: 5620684 (1997-04-01), Dupuis
Cretois Isabelle
Samain Henri
"L'Oreal"
Page Thurman K.
Seidleck Brian K.
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