Drug – bio-affecting and body treating compositions – Live hair or scalp treating compositions – Shaving preparation
Reexamination Certificate
1999-05-24
2001-05-15
Spear, James M. (Department: 1615)
Drug, bio-affecting and body treating compositions
Live hair or scalp treating compositions
Shaving preparation
C424S068000, C424S401000, C514S937000
Reexamination Certificate
active
06231845
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to an after shave composition which, upon application to the skin, provides reduced stinging and burning, reduced redness and irritation, and a soothing effect without tackiness or other undesirable aesthetic attributes.
Numerous types of after shave products are known. Many of these products have very high alcohol content (e.g. >50%), although some have low alcohol or no alcohol. Each type of formulation has its drawbacks. The high alcohol formulations tend to cause stinging and burning, while the low to no alcohol formulations tend to dry too slow and feel wet. None of these products reduces redness and irritation.
It is generally known that one may add an aluminum or zinc salt to an after shave composition to increase its astringency. See, for example,
Harry's Cosmeticoloy
and
Cosmetics, Science and Technology
(Balsam and Sagarin). A product sold under the name Kiehl's Blue Astringent Herbal Lotion contains about 5% aluminum chlorohydrate and about 27% ethanol in an aqueous base that also contains witch hazel and several other ingredients. Another product, Kiehl's For The Ladies (Unscented) Moisturizing And Conditioning After-Shave Lotion, contains about 1% aluminum chlorohydrate in an opaque, alcohol-free, fragrance-free, oil-in-water lotion that contains a long, laundry list of ingredients. None of these products have good aesthetic attributes.
It is highly desirable to provide an after shave composition which provides a combination of desirable aesthetic attributes without incurring further undesirable attributes. In particular, it is desirable to provide an after shave composition that will provide reduced stinging and burning, reduced redness and irritation, and a soothing effect without tackiness or other undesirable aesthetic attributes.
SUMMARY OF THE INVENTION
An after shave composition in accordance with the present invention comprises, by weight, 30 to 98%, preferably 65 to 95%, most preferably 70 to 90%, water, 0 to 65%, preferably 0 to 25%, most preferably 10 to 22%, ethanol, 0.25 to 6%, preferably 1 to 5%, fragrance, 0.25 to 5%, preferably 1 to 4%, surfactant to solubilize or emulsify the fragrance, and 0.5 to 1.5% (U.S.P.), preferably 0.8 to 1.3%, aluminum chlorohydrate. Preferably, the composition will be a clear solution or microemulsion having a clarity better than 100 NTU (i.e. 0-100 NTU), most preferably better than 50 NTU (i.e. 0-50 NTU), and a viscosity less than 200 mPas , most preferably less than 100 mPas. The foregoing composition provides, upon application to the skin, reduced stinging and burning, reduced redness and irritation, and a soothing effect without tackiness or other undesirable aesthetic attributes. The present invention also embraces a method of reducing irritation and redness of human skin caused by shaving comprising topically applying to human skin after shaving an after shave composition as described above.
REFERENCES:
patent: 4279891 (1981-07-01), Henkel et al.
patent: 4551330 (1985-11-01), Wagman et al.
patent: 4627934 (1986-12-01), Lindauer et al.
patent: 5527530 (1996-06-01), Simmons et al.
patent: 5665339 (1997-09-01), Simmons
patent: 5989531 (1999-11-01), Schamper et al.
patent: 2332857 (1975-01-01), None
patent: 0261 351 (1988-03-01), None
patent: 0 571 677 A1 (1993-12-01), None
patent: 79427 (1982-07-01), None
patent: WO 96/03963 (1996-02-01), None
Balsam & Saragin, Cosmetics Science and Technology (2nded), vol. 2, pp. 19-27 & 37 (1972).
“Harry's Cosmeticology”(7thed.), pp. 180-189 (1982).
Kiehl's Blue Astringent Herbal Lotion (product label) 1964.
Kiehl's For the Ladies (Unscented) . . . After Shave Lotion (product label) 1851.
Gillette Series Pacific Light After Shave Splash (product label) Jan. 1995.
Morrissey Maureen Sullivan
Stafford Richard E.
Spear James M.
The Gillette Company
Williams Stephan P.
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