Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Cosmetic – antiperspirant – dentifrice
Reexamination Certificate
2001-06-13
2003-11-18
Page, Thurman K. (Department: 1615)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Cosmetic, antiperspirant, dentifrice
C424S400000, C424S059000, C424S060000, C424S070100, C514S844000, C514S847000
Reexamination Certificate
active
06649178
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention concerns cosmetic compositions for skin subjected to extreme environmental conditions.
2. The Related Art
Humans are often assaulted with uncomfortable climate conditions. Environmental extremes generally induce considerable body discomfort. Hot and humid conditions cause reactions in the skin such as increased expiration through water evaporation. Ultraviolet radiation accompanying the heating phenomena may result in sun damage. Rashes and general erythema may arise from frictional contact with clothing in hot/humid conditions. Dry climate leads to body dehydration. The skin must be re-moisturized. Cold climate also disrupts the skin barrier in a significant way. Cracking and roughness are typical symptoms.
The cosmetic art often addresses these problems in a piecemeal fashion. Healing and protective measures may focus on only one or two problems brought on by climatic conditions.
Accordingly, it is an object of the present invention to provide a cosmetic composition which in a single formulation addresses many of the climatic stresses upon the skin.
It is another object of the present invention to provide a cosmetic composition applicable under a variety of extreme climate conditions to ameliorate effects of heat, cold and dry environmental surroundings.
These and other objects of the present invention will become more readily apparent through consideration of the following summary and detailed description.
SUMMARY OF THE INVENTION
A cosmetic composition is provided for calming skin stressed under a variety of extreme climatic conditions. The composition includes:
(i) from about 0.01 to about 20% of a hot climate treatment portion including:
(a) a first botanical ingredient imparting a cool sensation present from about 0.1 to about 80% by weight of the hot climate treatment portion;
(b) an organic sunscreen agent with a chromophoric group active within the ultraviolet radiation range from about 290 to about 400 nm present from about 1 to about 80% by weight of the hot climate treatment portion;
(ii) from about 0.1 to about 95% by weight of a cold climate portion including:
(a) a second botanical ingredient effective to reduce skin inflammation present from about 0.001 to about 30% by weight of the cold climate treatment portion;
(b) a silicone fluid or hydrocarbon for retaining moisturize within the skin present from about 1 to about 99% by weight of the cold climate treatment portion;
(iii) from about 0.1 to about 90% by weight of a dry climate treatment portion including:
(a) a third botanical ingredient to impart moisturization present from about 0.001 to about 10% by weight of the dry climate treatment portion;
(b) a C
6
-C
40
carboxylic ester present from about 1 to about 99% by weight of the dry climate treatment portion.
DETAILED DESCRIPTION OF THE INVENTION
Now it has been found that a single cosmetic formulation can be used against a variety of extreme climate conditions to protect skin. The formulation is based upon pairs of actives each directed at one of three environmental stress conditions including hot, cold and dry climates. A specific type of botanical ingredient is formulated for each of the different climates and to function for different purposes.
The problem of hot climate stress is addressed through a treatment portion present in an amount from about 0.01 to about 20%, preferably from about 1 to about 10% by weight of the cosmetic composition. This treatment portion includes a first botanical ingredient effective to induce a soothing and/or cooling sensation thereby ameliorating effects of hot temperature. Amounts of the first botanical ingredient may range from about 0.1 to about 80%, preferably from about 1 to about 30% by weight of the hot climate treatment portion. Organic sunscreen agents are formulated as a second component to combat sun damage and erythema. These agents are present in amounts from about 1 to about 80%, preferably from about 20 to about 60% by weight of the hot climate treatment portion.
First botanical ingredients suitable for the present invention include trehalose, aloe extract, guava, hydroxy-alpha-sanshool, hydroxy-beta-sanshool, hydroxy-gamma-sanshool, menthol, anethole, isopulegol, menthoxypropane-1,2,diol,menthone,menthyl acetate, eucalyptol, methyl salicylate, N-2,3-trimethyl-2-isopropylbutanamide (available as WS-23 from Wilkinson Sword), N-ethyl-p-menthane-3-carboxamide (available as WS-3 from Wilkinson Sword), menthyl lactate, menthyl succinate, menthone glycerol ketal spilanthol, N-acetyl glycine menthyl ester, L-menthol-3-hydroxybutyrate, 2-isopropenyl-1-methylcyclohexanol, trialkyl-substituted cyclohexane carboxamides, cyclohexanamides, N-ethyl-p-methane-3-carboxamide, 2-mercapto-cyclo-decanone, 2-isopropanyl-5-methylcyclohexanol and mixtures thereof. Particularly preferred are the hydroxy-sanshool compounds which sooth by reducing any hot feeling sensations. These compounds are sold under the Zanthalene trademark from Indena Corporation.
Sunscreen agents for use in the hot climate treatment portion are organic substances having at least one chromophoric group absorbing within the ultraviolet range from about 290 to about 400 nm. Illustrative but not limiting examples include Benzophenone-3 (available as UVINUL M-40), Benzophenone-4 (available as UVINUL MS-40), Benzophenone-8 (available as SPECTRA-SORB UV-24), DEA-Methoxycinnamate (available as BERNEL HYDRO), Ethyl dihydroxypropyl-PABA (available as AMERSCREEN P), Glyceryl PABA (available as NIPA G.M.P.A.), Homosalate (available as KEMESTER HMS), Menthyl anthranilate (available as SUNAROME UVA), Octocrylene (available as UVINUL N-539), Octyl dimethyl PABA (available as AMERSCOL), Octyl methoxycinnamate (avalable as PARSOL MCX), PABA, 2-Phenylbenzimidazole-5-sulphonic acid (available as EUSOLEX 6300), TEA salicylate (available as SUNAROME W), 2-(4-Methoxybenzilidene)-camphor (available as EUSOLEX 6300), Benzophenone-1 (available as UVINUL 400), Benzophenone-2 (available as UVINUL D-50), Benzophenone-6 (available as UVINUL D-49), Benzophenone-12 (available as UVINUL 408), 4-Isopropyl dibenzoyl methane (available as EUSOLEX 8020), Butyl methoxy dibenzoyl methane (available as PARSOL 1789) and Etocrylene (available as UVINUL N-35).
Cold climate treatment portions according to the present invention may range in amount from about 0.1 to about 95%, preferably from about 1 to about 50% by weight of the cosmetic composition. This portion features a second botanical ingredient effective as an anti-irritant to reduce skin inflammation. Amounts of this ingredient may range from about 0.001 to about 30%, preferably from about 0.01 to about 50% by weight of the cold climate treatment portion. A silicone fluid or hydrocarbon is also present for retaining moisture within the skin in amounts which may range from about 1 to about 99%, preferably from about 10 to about 80% by weight of the cold climate treatment portion.
Representative second botanical ingredients include extracts from sea parsley (available from Collaborative Laboratories), red clover, kava kava (available from Sederma Company), watercress, edelweiss, gorgonian extract, oak root extract, cornflower extract, arnica extract, chamomile extract, shikonine, licorice extract (such as glycyrrhetinic acid and salts thereof), absinthium, acacia, escin, alder, buckthorn extract, allantoin, astragalus, astragalus root extract, azulene, baikal skullcap, baizhu, balsam canada, bee pollen, black cohosh, bisabolol, black cohosh extract, blue cohosh, blue cohosh extract, borage, calendula, candula extract, Cangzhu, chickweed, chicory root, chicory root extract, comfrey, comfrey extract, dehurian angelica, devil's claw, dogwood, doggrass, eleuthero, ephedra, evening primrose, eyebright, fang feng, fever few, fisin, forsythia fruit, ganoderma, gaoben, gentian, germanium extract, ginkgo biloba, ginkgo, ginseng extract, golden seal, gotu kola, grape fruit extract, guaiac wood oil, guggal extract, henna, honeysuckle flower, horehound extract, horse chestnut, horse
Mohammadi Fatemeh
Vargas Anthony
Dubno Herbert
Myers Jonathan
Page Thurman K.
Sheikh Humera N.
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