Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Cosmetic – antiperspirant – dentifrice
Reexamination Certificate
1999-08-13
2001-06-19
Dodson, Shelley A. (Department: 1616)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Cosmetic, antiperspirant, dentifrice
C512S001000, C514S944000
Reexamination Certificate
active
06248339
ABSTRACT:
FIELD AND BACKGROUND OF THE INVENTION
The present invention relates in general to creams and lotions, and in particular to a new and useful fragrant body lotion or cream which improves fragrance lift in a non-alcohol carrier and creates a barrier to let the fragrance adhere to the skin to lengthen the duration of fragrance emission, while maintaining skin moisture.
U.S. Pat. No. 5,623,017 to Hill, assigned to Dow Corning Corporation, discloses a clear silicone gel which is used to improve the characteristics of various cosmetic products. One such cosmetic product is disclosed in U.S. Pat. No. 5,919,437 to Lee, et al., assigned to Colgate-Palmolive Company, which utilizes a combination of the silicone gel material with an active ingredient such as deodorant, antiperspirant, sunscreen, insect repellant or anti-fungal agent. Also see U.S. Pat. No. 4,673,570 to Soldati, assigned to Carter-Wallace, Inc., for an antiperspirant gel composition.
The Hill patent also identifies a class of cyclic volatile methyl siloxanes by the International Nomenclature Cosmetic Ingredient (INCI) name “CYCLOMETHICONE.”
U.S. Pat. No. 5,654,362 to Schulz, Jr., et al., assigned to Dow-Corning Corporation, discloses a silicone oil and solvent composition for use in cosmetics.
U.S. Pat. Nos. 5,623,017 and 5,654,362 are incorporated here by reference for their teaching of cyclomethicone/dimethicone crosspolymer gels.
SUMMARY OF THE INVENTION
The present invention is a unique composition and method of using that composition which has an improved feel on the skin, improves fragrance lift from the skin and, at the same time, moisturizes the skin and acts as a barrier to help maintain moisture and repair the skin.
The composition of the invention, which is a lotion or cream, advantageously uses a cyclomethicone/dimethicone crosspolymer such as that disclosed in U.S. Pat. No. 5,654,362 to Schulz, Jr., et al. and contains no alcohol. The inventors have found that by using this silicone gel, shortly after the composition is spread onto the skin, some of the cyclomethicone portion flash evaporates to provide a rapid initial release of fragrance into the air. Additional fragrance, however, is held against the skin by the dimethicone crosspolymer and, at the same time, improves the smooth feel on the skin and moisturizing of the skin. The remaining fragrance is slowly released, due to the remaining dimethicone crosspolymer, in an advantageous and unexpected manner.
The cyclomethicone/dimethicone crosspolymer is also used in selected proportions, to adjust the viscosity of the composition to make it either a lotion (low viscosity) or a cream (high viscosity).
Accordingly, an object of the present invention is to provide a skin care and fragrance applying composition comprising about 60-90% by weight cyclomethicone/dimethicone crosspolymer gel and about 1-20% by weight fragrance.
A further object of the present invention is to provide a method of moisturizing and adding fragrance to the skin comprising applying the composition to the skin.
A still further object of the present invention is to provide a composition and method of using the composition which is free of water and free of alcohol, and which adds a smooth, pleasing feel to the skin while metering release of fragrance from the skin and maintaining moisture level in the skin.
The various features of novelty which characterize the invention are pointed out with particularity in the claims annexed to and forming a part of this disclosure. For a better understanding of the invention, its operating advantages and specific objects attained by its uses, reference is made to the accompanying descriptive matter in which preferred embodiments of the invention are illustrated.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
The body lotion or cream of the invention contains about 60 to 90 wght. % anhydrous cyclomethicone/dimethicone crosspolymer with about 1 to 20 wght. % fragrance oil (e.g., Firmenich Sexy Angel-121.623/B). The formula contains no water or alcohol. The viscosity of the system is dependent on the level of cyclomethicone/dimethicone crosspolymer in which the level of the cyclomethicone is 65.2% of the blend and the dimethicone crosspolymer is 8.8% of the blend which accounts for 74.0% of the formula in the preferred embodiment of the lotion. The higher viscosity cream has a preferred 79.6% content in the composition.
The preferred lotion system also contains hydrocarbons linked to a copolymer. Isohexadecane (hydrocarbon) at 7.6% to 8/0% of the blend with hydrogenated butylene ethylene styrene copolymer and hydrogenated butylene ethylene propylene styrene copolymer between 0.1% and 1.0% makes up 8% of the formula. The formula contains an ester of isononyl isonanoate at 14.79%. The product utilizes titanium dioxide, zinc oxide and mica to achieve opacity in the product at a level of 0.1% to 1.0%. All amounts are in percent by weight.
The lotion product uses the cyclomethicone/dimethicone crosspolymer to provide a fragrance lift that is usually found in alcohol type products. The product facilitates barrier repair and moisturizes the skin for up to eight hours (all day). The product is a free flowing lotion. A decrease in the amount of cyclomethicone/dimethicone crosspolymer not only decreases the viscosity, but also has a dramatic affect on the feel of the product. The viscosity range for the lotion is about 30,000 to 40,000 cps. The product loses the slip and becomes more tacky by lowering the level below about 60% cyclomethicone/dimethicone crosspolymer.
A benefit of the lotion system is that it provides maximum fragrance lift in a non-alcohol carrier and creates a barrier to let the fragrance adhere to the skin hence lengthening the duration of the fragrance. Unlike alcohol products, which are drying, this inventive formula provides moisture to the skin but allows for great fragrance integrity. The product has such a unique feel it can not be compared to any other fragrance body product on the market. The product has a silky feel to the touch and leaves skin soft and smooth without any residual on, or tack to the skin. It moisturizes the skin and facilitates barrier repair to keep skin healthy longer.
The lotion and cream products may use any compatible fragrance oil, any hydrocarbons linked to a copolymer and any opacifing agent or chemical which would give the product an opaque appearance, all of which, however, must be acceptable for topical use.
The cream of the present invention has an anhydrous cyclomethicone/dimethicone crosspolymer with fragrance oil (e.g., Firmenich Sexy Angel-143.131/B or 121.623/B) at between about 1% to 20%. The formula again contains no water or alcohol. The viscosity of the system, is dependent on the level of cyclomethicone/dimethicone crosspolymer, has a level of the cyclomethicone at 69.25% of the blend and the dimethicone crosspolymer at least 10.35% of the blend which together accounts for 79.6% of the formula in the preferred cream. The formula contains the hydrocarbon isododecane at a 11.05% level. The formula contains an ester of isononyl isonanoate at 5.95%. The product utilizes titanium dioxide, zinc oxide pearl and mica to achieve opacity in the product at a level of 0.1% to 1.0%.
As with the lotion, the cream product uses the cyclomethicone/dimethicone crosspolymer to provide a fragrance lift that is usually found in alcohol type products. The product works to facilitate barrier repair and moisturizes the skin for up to eight hours. The cream is more viscus than the lotion. A decrease in the amount of cyclomethicone/dimethicone crosspolymer would not only decreases the viscosity, but also has a dramatic affect on the feel of the product. If the dimethicone crosspolymer content is below 10% the product will not form a cream. The viscosity range for the cream is about 125,000 to 135,000 cps. The product loses the slip and becomes more tacky by lowering the level to below about 60% cyclomethicone/dimethicone crosspolymer.
The benefit of the cream system is that is provides maximum fragrance lift in a non-alcohol carrier
Davis Jeff
Knitowski Mark
Colluci & Umans
Dodson Shelley A.
Intimate Beauty Corporation
Lamm Marina
Michalos Peter C.
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