Drug – bio-affecting and body treating compositions – Manicure or pedicure compositions
Reexamination Certificate
1997-09-22
2002-05-28
Page, Thurman K. (Department: 1615)
Drug, bio-affecting and body treating compositions
Manicure or pedicure compositions
C424S063000, C424S064000, C424S078030, C424S401000, C514S772400, C514S772600, C514S772300, C514S937000, C514S938000
Reexamination Certificate
active
06395262
ABSTRACT:
The present invention relates to a composition, especially a cosmetic composition, which may in particular be in the form of an emulsion and may be used to care for and/or make up the human skin, semi-mucous membranes, lips, mucous membranes, inner part of the eyelid and/or the exoskeleton.
Cosmetic compositions, in particular make-up compositions such as lipsticks and foundations, generally comprise fatty substances such as oils and waxes, and a particulate phase generally composed of fillers and pigments. They may thus be, for example in the case of lipsticks, in the form of a stick or tube or in the form of a soft paste. Make-up compositions may also comprise water or a hydrophilic phase and may then be in particular in the form of an oil-in-water emulsion, a water-in-oil emulsion, a multiple emulsion, an aqueous gel or solution, in particular when it is a foundation, a tinted cream, a care cream or an antisun product.
When they are applied to the skin, mucous membranes or semi-mucous membranes, these compositions have the drawback of transferring. This means that the composition is liable to become at least partly deposited on certain supports with which it is placed in contact, such as, for example, a glass, clothing or the skin.
On becoming deposited, the said composition leaves a trace on the support. This thus results in mediocre persistence of the composition on the skin or the mucous membranes, making it necessary to make repeat applications regularly.
Moreover, the appearance of unacceptable traces on certain items of clothing and in particular on blouse collars may discourage certain women from using this type of make-up.
Another drawback of these compositions lies in the problem of migration, since it has been observed that certain compositions have a tendency to migrate into fine lines and/or wrinkles on the skin in the case of foundations; into the fine lines around the lips in the case of lipsticks; and into the folds of the eyelids in the case of eye-shadows. The appearance of lines in the make-up, generated by the movements of the eyelids, has also been observed, especially in the case of eye-shadows.
All these phenomena give rise, on one hand, to a loss of staying power of the composition (that is to say that the composition, by transferring, or by migrating, loses some of its components and/or loses some of its homogeneity), and on another hand, to an unaesthetic effect which it would clearly be desirable to avoid.
Many cosmeticians have been interested in “transfer-free” cosmetic compositions for several years, in particular transfer-free lipsticks and foundations. Thus, transfer-free lipstick compositions containing from 1 to 70% by weight of liquid silicone resin containing repeating silicate units containing alkyl or phenyl pendant chains, from 10 to 98% by weight of a cyclic volatile silicone oil and pulverulent fillers have been envisaged.
Transfer-free lipsticks containing a volatile silicone and a silicone resin containing a pendant esterified chain having at least 12 carbon atoms have also been envisaged.
In general, it is now known that, although the combination of volatile oils with certain silicone compounds makes it possible to obtain a satisfactory transfer-free result, it nevertheless has the drawback of leading, after evaporation of the volatiles, to a film which is not of optimum comfort, in particular since it is not possible to add oils other than silicone oils to these compositions while at the same time retaining a correct transfer-free quality. The reason for this is that hydrocarbon oils, which are known to provide, in particular, a sensation of comfort to a cosmetic composition, have the drawback of increasing the transfer of such a composition.
The need thus remains for a composition, especially a cosmetic composition, which limits, decreases, and or eliminates transfer altogether, and especially a composition which undergoes little or no transfer (that is to say a transfer-free composition), which at the same time has good cosmetic properties, in particular properties of slipperiness and of a sensation of freshness when applied, as well as qualities of softness and comfort after the make-up is applied.
Now, the inventors have demonstrated, surprisingly and unexpectedly, that the presence of a specific copolymer, defined below, in a cosmetic composition makes it possible to limit, or even eliminate entirely, the transfer and/or migration of the said composition and thus makes it possible to improve its staying power. The aim of the present invention is thus to propose a composition which makes it possible to obtain a film of very good staying power, which does not transfer and which does not stain a support with which it might come into contact.
The subject of the invention is thus the use in a cosmetic, dermatological, hygiene and/or pharmaceutical composition of at least one optionally crosslinked copolymer comprising a major fraction derived from at least one first monomer selected from a monoolefinically unsaturated C
3
-C
6
carboxylic acid monomer and an anhydride thereof and a minor fraction derived from at least one second monomer selected from a fatty-chain monomeric ester of an acrylic acid, for the purpose of limiting, decreasing and/or removing altogether the transfer and/or migration of the said composition.
The subject of the invention is also the use of such a copolymer in a cosmetic, dermatological, hygiene and/or pharmaceutical composition in order to improve the staying power of the said composition.
The subject of the invention is also the use of such a copolymer in a cosmetic, dermatological, hygiene and/or pharmaceutical composition, as an agent for limiting, decreasing and/or removing altogether the transfer and/or migration of the said composition, and/or as an agent for improving the staying power of the said composition.
Another subject of the invention is the use of at least one optionally crosslinked copolymer comprising a major fraction derived from at least one first monomer selected from a monoolefinically unsaturated C
3
-C
6
carboxylic acid monomer and an anhydride thereof and a minor fraction derived from at least one second monomer selected from a fatty-chain monomeric ester of an acrylic acid in a cosmetic, dermatological, hygiene and/or pharmaceutical composition, in order to form a film of said composition, said film not transferring and/or not migrating and/or having an improved staying power.
Another subject of the invention is the use of at least one optionally crosslinked copolymer comprising a major fraction derived from at least one first monomer selected from a monoolefinically unsaturated C
3
-C
6
carboxylic acid monomer and an anhydride thereof and a minor fraction derived from at least one second monomer selected from a fatty-chain monomeric ester of an acrylic acid in a transfer-free composition.
By transfer-free composition, one means a composition which transfers very little or which does not transfer at all, according to the meaning developed hereinabove.
Another subject of the invention is a cosmetic, dermatological, hygiene and/or pharmaceutical composition in the form of, and/or comprising, an oil-in-water emulsion, a water-in-oil emulsion, a multiple emulsion or a multi-phase solution, also comprising at least one optionally crosslinked copolymer comprising a major fraction derived from at least one first monomer selected from a monoolefinically unsaturated C
3
-C
6
carboxylic acid monomer and an anhydride thereof and a minor fraction derived from at least one second monomer selected from a fatty-chain monomeric ester of an acrylic acid and at least one pigment having a hydrophobic surface.
Another subject of the invention is a cosmetic, dermatological, hygiene and/or pharmaceutical composition in the form of, and/or comprising, an aqueous gel, an aqueous, aqueous-alcoholic or multi-phase solution, also comprising at least one such copolymer and at least one water-soluble dye.
Another subject of the invention is a transfer-free make-up or care composition comprising at least
Favre Sophie
Michelet Jacques
Terren Nadia
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
L'Oreal
Page Thurman K.
Sheikh Humera N.
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