Abstract:
A stable soothing hydroalcoholic skin preparation for shaving purposes employing alcohol as a carrier or solvent for the remainder of the composition comprising a combined allantoin-boric acid hydrolyzed solution in combination with glycerine, menthol, ethyl alchohol and fragrance.

Description:
BACKGROUND OF THE INVENTION 
     This invention relates to liquid products for external application to the body and more particularly to a solution or medicinal mixture for applying to circumscribed portions of the skin such as the face for shaving purposes. 
     Shaving soaps are usually made of a cocoanut oil as a base with some stearic acid used to give it hardness. Both soda and potash lyes are used and gum is added to prevent it from quickly drying. Glycerine is a common ingredient of this type of soap. 
     Transparent soaps are prepared by drying ordinary soap, dissolving it in alcohol, allowing the solution to remain at rest so long as any impurities are precipitated, decanting off the alcoholic liquid and evaporating it until it is of such a consistency as to solidify when cooled in metallic molds. Glycerine is often incoporated with transparent soaps for emollient effects, while for disinfecting purposes carbolic acid, coal tar, eucalyptus oil and other substances are added. 
     When such shaving soaps are used in either the solid or liquid form and removed after a shaving procedure an after shaving lotion is usually used for a cooling, stimulating, astringent, soothing or sedative effect. A good stimulating lotion is procured from a mixture of water with a third to one half of its bulk being alcohol. Astringent lotions are formed by adding from one to ten grams of sulphate of zinc or white vitriol to an ounce of very cold water having other astringents in solution. So called antiseptic lotions contain bichloride of mercury, carbolic acid or boracic acid. 
     A need exists for a liquid shaving product having all of the benefits of a shaving soap and the benefits of an after shaving lotion, cologne or skin toner in a single product requiring no further skin treating after a shaving activity. 
     The present invention relates to an alcohol based liquid shaving product which can be relatively transparent and imparts a feeling of lubricity to the product with the alcohol being a carrier or solvent for other ingredients in the composition. 
     DESCRIPTION OF THE PRIOR ART 
     Although no known liquid shaving product is known which serves as a combined shaving soap and after shaving lotion, the following patents related to personal skin products for after shaving use. 
     U. S. Pat. No. 4,065,422 discloses a composition which may be used on the skin or hair to impart a highly lubricated feel thereon. 
     U. S. Pat. No. 4,279,891 discloses a clear, aqueous, alcoholic after-shave lotion having low alcohol content. 
     U. S. Pat. No. 4,416,873 discloses the use of allantoin in the form of a hydroalcoholic solution, such as a cologne, after-shave lotion or skin toner containing at least about 0.5% by weight of allantoin which remains in solution without crystallizing out over an extended period of time. 
     SUMMARY OF THE INVENTION 
     In accordance with the invention claimed, a new and improved solution is provided in the form of a stable soothing hydroalcoholic skin preparation for shaving purposes. 
     It is, therefore, an object of this invention to provide a new and improved alcohol based personal care product which imparts a feeling of lubricity to the contacted substrate. 
     Another object of this invention is to provide a new and improved method of manufacture of said personal care product. 
     A further object of this invention is to provide an improved personal care product employing alcohol as a carrier or solvent for the remainder of the composition that serves not only as a carrier but also gives an emollient effect upon the skin and imparts a feeling of lubricity to the skin without causing crystallizing out over a period of time of any of its components. 
     Further objects and advantages of the invention will become apparent as the following description proceeds and the features of novelty which characterize the invention will be pointed out with particularity in the claims annexed to and forming a part of this specification. 
    
    
     BRIEF DESCRIPTION OF THE DRAWING 
     The present invention may be more readily described with reference to the accompanying drawing in which: 
     FIG. 1 of the drawing is a block diagram of the manufacturing procedure of the claimed invention. 
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Referring more particularly to the drawing by characters of reference, FIG. 1 discloses a block diagram of a method of manufacturing a unique and novel personal care item which may be used, for example, as a liquid shaving product with particular lubricity characteristics. 
     The novel product can be transparent so when used as a shaving product, the user may see the hairs on the face, legs or any other surface on the body during the shaving procedure. It not only softens the hairs, such as the beard, but also has a mild cooling, stimulating, astringent and soothing characteristic, thus obviating the need for an after shaving lotion. 
     The present invention is directed to an alcohol based personal care product which imparts a feeling of lubricity to the contacted skin. 
     Alcohol based personal care products are widely marketed with the alcohol being a carrier or solvent for the remainder of the composition and in the case of higher molecular weight alcohols such as cetyl or stearyl alcohol to not only serve as a carrier but also to give an emollient effect upon the skin, i.e., a feeling of lubricity or silkiness to the skin. In addition, alcohol is used to solubilize the perfumes, i.e., essence on fragrance used. 
     Further, it has been a problem when using allantoin or its derivate as a therapeutic agent to prevent it from crystallizing out of solution over a period of time. 
     The novel resulting product of the manufacturing process disclosed consists essentially of: 
     
         ______________________________________INGREDIENTS    PARTS BY WEIGHT______________________________________Pure Ethyl Alcohol          700 gramsEssence        50 gramsGlycerine      30 gramsBoric Acid     20 gramsAllantoin       2 gramsMenthol         1 gramH.sub.2 O (distilled)          197 gramsA trace of Eosin______________________________________ 
    
     To manufacture this unique product, as shown in FIG. 1 of the drawing, the following three solutions are prepared. 
     Solution A comprises a mixture of approximately grams of an essence with approximately 1 gram of menthol and approximately 500 cubic centimenters of pure ethyl Solution B comprises approximately 118 cubic centimeters of distilled water (H 0) heated to approximately 70 degrees centigrade dissolving in it at this temperature approximately 2 grams of allantoin and approximately 20 grams of boric 
     acid. Boric acid is soluble in H 2  O and glycerine but not in alcohol in proportions under 1/18. 
     Solution C comprises approximately 2,450 cubic centimeters of distilled water (H 0) in solution with approximately 1 gram of Eosin. 
     The ingredients identified as solution B are cooled to approximately atmospheric temperature. Then add to this 30 grams of glycerin and stir the mixture yielding a solution D. 
     Approximately 49 cubic centimeters of solution C are added to solution D to form a solution E. 
     To solution E is added approximately 230 cubic centimeters of pure ethyl alcohol (96%) to yield a solution F. 
     Solutions F and A are then mixed and shaked to create the final solution G which is allowed to steep (or macerate) for at least 15 days but no more than 22 days at a constant temperature of approximately 4 degrees Centigrade. 
     After steeping for the prescribed period of time a sufficient quantity (1 tablespoon per liter of solution) of magnesium carbonate is added to form a solution H which is filtered one or more times before the resulting liquid is bottled for use. 
     It should be noted that the: 
     Alcohol -- dilates the vessels and disinfects the skin. 
     Essence -- adds aroma i.e., fragrance to the solution. 
     Glycerine -- is a moisturing agent in the resulting shaving product. 
     Boric Acid -- is a disinfectant for external body use. 
     Allantoin -- coagulates and serves as a tissue builder and healer. 
     Menthol -- dilates vessels. 
     Eosin -- is a coloring agent or dye C 20  H 8  Br 4  O 3 ). 
     If so desired cetiol HE can be included as a lubricant and a nutrient for dry skin and should comprise 2% of the final solution with 15 grams of alcohol and 5 grams of H 2  O being removed from the formula set forth above to compensate for the addition of cetiol HE. 
     Solutions of triethanolamamine (50% solution) may be added in sufficient quantities to reach between 6.5 and 7.5 PH condition of the preparation without effecting the basic composition. 
     The shaving liquid disclosed above has excellent stability properties with allantoin remaining in solution without crystallizing out over extended periods of time. 
     Although but one embodiment of the invention has been shown and described, it will be apparent to those skilled in the art that various changes and modifications may be made therein without departing from the spirit of the invention or from the scope of the appended claims.