Drug – bio-affecting and body treating compositions – Anti-perspirants or perspiration deodorants
Reexamination Certificate
2001-07-09
2002-08-13
Dodson, Shelley A. (Department: 1616)
Drug, bio-affecting and body treating compositions
Anti-perspirants or perspiration deodorants
C424S078020, C424S078080, C424S400000, C424S401000
Reexamination Certificate
active
06432391
ABSTRACT:
The present invention relates to a product comprising a solid, transparent and optionally colored cosmetic composition which comprises at least one odorous substance (such as, for example, fragrances and/or aromas), which can be used to scent, for example, at least one cosmetic substrate, including, for example, cosmetic substrates chosen from human skin, keratinous substances, scalps, and lips, and which comprises a liquid fatty phase gelled by a specific polymer. The product can be provided in various forms such as, for example, cast products and sticks. The use of the product, which can include for example, cosmetic uses, includes the application of the composition, which can result in a controlled and/or enhanced persistence of the at least one odorous substance.
A fragrance can be a combination of various odorous substances which evaporate at different rates and/or during different periods. Fragrance can exhibit what is known as a “top note,” which is the odour which first diffuses when the fragrance is applied or when the receptacle comprising it is opened, a “heart note” or “body note,” which corresponds to the complete fragrance (emission for several hours after the “top note”), and a “base note,” which is the most persistent odour (emission for several hours after the “heart note”). The persistence of the base note corresponds to the persistence of the fragrance.
From time immemorial, human beings have attempted to wear perfume and to scent the objects which surround them or the places in which they are found, both to mask strong and/or unpleasant smells and to give a pleasant smell.
Fragrance can be incorporated in a number of products and compositions, such as, for example, cosmetic and dermatological products and compositions. However, depending upon the nature of the products or compositions, it can be difficult to incorporate a fragrance and it can be difficult to retain the desired olfactory effects.
There exist scenting products intended to scent at least one of the skin and the hair. Scenting products are typically presented in the form of a liquid, the fragrance of which is dissolved with alcohol (ethanol, for example). Alcohol-free solid fragrances, presented in the form of, for example, dishes, can offer the consumer a new way of wearing perfume with advantages such as, for example, being less irritating and being nonflammable in comparison to alcohol based products. Other advantages of the solid form can include the ability to apply scent at a specific location, which a spray does not always make possible, and to prevent possible splashing of the fragrance.
The scenting “solids” include anhydrous forms, rich in “fatty substances” (or “scenting balm”) that can help in providing good solubility to the fragrances, and forms rich in powder, such as compressed powders similar to the compact powders used in make-up. These solid forms can be opaque, because, for example, they are prepared with waxes with a crystal lattice that introduces a degree of opaqueness or they comprise nontransparent powders.
Transparency or translucency can be a desired and valued effect and can correspond to trends in other sectors, such as textiles or design. The phenomenon of transparency can also make possible incorporation inside the solid of objects which are visible to the naked eye, such as particulate components (for example, immiscible components such as glitter, granules, spheres, and the like). Transparent products can be superimposed on colored “conventional” make-up products, such as, for example lipsticks, without modifying the original color thereof in order to, for example, convey a pleasant smell to the lips.
There is a need for scenting products, including, for example, cosmetic products, which do not exhibit one or more of above-identified and/or other disadvantages. For example, there is a need for transparent and optionally colored scenting products, for giving the consumer a new visual image of a scented composition, which can enhance the persistence of the fragrance on, for example, a surface or object, such as keratinous substances, without this fragrance decomposing, including, for example, decomposing on contact with other constituents of the composition. The surface or object, such as keratinous substances, to which such a composition may be applied include, for example, the skin, the lips, the superficial body growths, and keratinous substances.
To meet these and/or other needs, it is, however, difficult to prepare a solid composition (that is, a composition that does not flow under its own weight) comprising a high concentration of at least one odorous substance (such as, for example, a fragrance and/or an aroma) without affecting the transparency of the solid composition, since the incorporation of a fairly large amount of at least one odorous substance can result in an opaque product.
Surprisingly, the inventor has discovered that specific polymers can make it possible to gel oils and to obtain cosmetic products comprising transparent solids, and to incorporate high levels of at least one odorous substance without harming the transparency of the product. The polymer may be chosen from at least one polymer comprising a polymer backbone having repeating units with heteroatoms and at least one of a pendant fatty chain and an end fatty chain, and at least one polyamide comprising a polymer backbone having amide repeat units and optionally at least one of a pendant fatty chain and an end fatty chain.
One embodiment of the present invention is a product, for example a scenting product, comprising a transparent, anhydrous, solid cosmetic composition comprising a physiologically acceptable medium, where the physiologically acceptable medium comprises at least one odorous substance in an amount of at least 2% by weight with respect to a total weight of the composition; and a liquid fatty phase comprising at least one polymer, where the at least one polymer has a weight-average molecular mass ranging from 1,000 to 30,000, and comprises a) a polymer backbone comprising hydrocarbonaceous repeat units comprising at least one heteroatom and b) at least one fatty chain chosen from pendant and end fatty chains, where the at least one fatty chain is optionally functionalised; comprises from 12 to 120 carbon atoms; and is bonded to at least one of the hydrocarbonaceous repeat units.
Another embodiment of the present invention is a product, for example a scenting product, comprising a transparent, anhydrous, solid cosmetic composition comprising a physiologically acceptable medium, where the physiologically acceptable medium comprises at least one odorous substance in an amount of at least 2% by weight; and a liquid fatty phase comprising at least one polyamide, wherein the at least one polyamide has a weight-average molecular mass ranging from 1,000 to 30,000, and comprises a) a polymer backbone comprising amide repeat units and b) optionally at least one fatty chain chosen from pendant and end fatty chains, wherein the at least one fatty chain is optionally functionalised; comprises from 12 to 120 carbon atoms; and is bonded to at least one of the amide units.
According to certain embodiments, the amount of the at least one odorous substance in the composition of the invention can range from 2 to 15%, for example from 3 to 12%, such as, for further example, from 4 to 10% by weight with respect to the total weight of the composition.
The term “physiologically acceptable medium” is understood to mean, in the composition of the invention, a nontoxic medium capable of being applied to at least one of the skin (such as, for example, the inside of the eyelids), the lips, the nails, and the hair of human beings.
The term “solid composition” is understood to mean, within the meaning of the present invention, any malleable or nonmalleable composition which does not flow under its own weight and exhibits a hardness with a strength ranging from 5 to 600 g (gram), for example from 10 to 450 g, such as, for further example, from 50 to 450 g. This hardness can be measured according to
Dodson Shelley A.
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
L'Oreal (S.A.)
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