Electrolysis: processes – compositions used therein – and methods – Electrolytic synthesis – Utilizing fused bath
Reexamination Certificate
2000-04-28
2003-04-08
Phasge, Arun S. (Department: 1741)
Electrolysis: processes, compositions used therein, and methods
Electrolytic synthesis
Utilizing fused bath
C205S556000, C205S618000, C424S401000, C424S450000
Reexamination Certificate
active
06544401
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention describes novel aqueous compositions for microbicidal health and beauty care products and the methods for their preparation and use.
2. Description of the Related Art
Health and beauty care products have been an important part of the human civilization from its beginnings. The health and beauty care products include skin, hair, scalp, tooth, mouth, feminine hygiene and other relevant cosmetics as well as “over the counter” health care products. One of the imperatives of modern health and beauty care products is to provide antimicrobicidal ingredients along with the other wanted actions, such as improved hydration, moisturizing, antioxidant and anti-itching activities. This is actually very difficult to achieve.
Among the common ingredients of health and beauty care products, alcohols, are the ones most frequently used. Alcohols provide microbicidal action and are a good solvent for most other ingredients. On the other hand, alcohols cause drying and itching of the skin and mucosa. Other commonly used agents result in even stronger, unpleasant side effects. Benzoyl peroxide is, for instance, a common ingredient of acne fighting products. It has an unpleasant smell and taste and also irritates the skin. Moreover, it leaves bleached spots on clothes. Retin A, a recent development in acne and wrinkle fighting, also irritates and overdries the skin. Beta-hydroxy acids have similar side effects.
Inorganic microbicidal agents have also been described and used in beauty care products. Hydrogen peroxide has been the most popular one. Other agents which slowly release nascent oxygen have also been described. (See, for instance, U.S. Pat. Nos. 5,736,582; 5,653,994 or the book “Oxygen Therapies,” by Ed McCabe; Energy Publications, Morrisville, N.J., (1988).) Yet all such reagents cause skin and mucosa irritation. In most uses, hydrogen peroxide was used with surfactants, oils and other ingredients. This was needed to wet the skin or mucose to a determined level (agents like surfactants are needed to lower the surface tension). (See, for instance, U.S. Pat. Nos. 4,900,721; 3,954,974; 5,773,402). The aforementioned patents and publication are hereby incorporated by reference in their entireties.
Chlorine based oxidants have also been proposed for microbicidal beauty care products. The evident problems of such products are unpleasant smells, bleaching of clothes and, in many cases, the low chemical stability of the products. Such products also dry and irritate the skin.
Chlorine dioxide solutions have been the most popular ones. See, for instance, U.S. Pat. Nos. 4,737,307; 5,738,840; 4,317,814. The contents of which are hereby incorporated by reference in their entireties.
Mixtures of chlorine based oxidants and oxygen based oxidants were also described. Yet, like other previously mentioned products, such mixtures also dry the skin, have unpleasant odor and bleach clothes. None of the above mentioned products ever achieved a wide popularity among consumers. See, for instance, U.S. Pat. Nos. 4,574,084; or 4,552,679, the contents of which are hereby incorporated by references in their entireties.
Remarkably, our own bodies also use mixed chlorine based-oxygen based systems to kill microbes and save the skin and the rest of the body from microbial infestation. Yet, healthy human individuals do not show permanent symptoms of skin drying or irritation. The chemical compositions used by our body to protect itself do not show such side effects. The enzyme myeloperoxidase produces the mixture of hydrogen peroxide and hypochlorous acid at a pH close to that of the skin (around pH 5). Such mixtures are extremely efficient in killing various microbes. The detailed mechanisms and efficiency of microbicidal action of these mixtures were recently reviewed (J. K. Hurst, “The Role of Inorganic Chemistry in Cellular Mechanisms of Host Resistance to Disease,” in Electron Transfer Reactions, American Chemical Society, Washington, D.C., (1997).) The above mentioned publication is hereby incorporated by reference in its entireties.
SUMMARY OF THE INVENTION
The object of the present invention is to provide improved health and beauty care products based on imitating or mimicking—hence the term “biomimetic”—nature's own ways of yielding microbicidal protection without any significant adverse side effects. Moreover, the object of this invention is to provide improved products which will actually promote hydration of the skin and prevent itching and irritation while giving maximum microbicidal protection. A further object of this invention is to provide water based health and beauty care products with minimum amounts of oils or surfactants, or in the preferred embodiment, without any oil, surfactant or alcohol.
In accomplishing these and other objects of this invention, there are provided methods for producing such water based health and beauty care products. There are also disclosed methods of using the products described in this invention as a mixture with other health and beauty care products such as creams, gels, lotions, powders, tooth and other pastes, suppositories, body and hair shampoos and rinses, oral hygiene rinses and other products which will become apparent to those skilled in the art.
In the first method of producing biomimetic hair, body and skin care products, electrochemistry (especially membrane based electrolysis systems) is used to produce activated water with numerous different chlorine based oxidants at the desired pH. Hydrogen peroxide is then added to that solution and the pH is adjusted to the desired value. Catalytic chlorine filters or air sparging devices can be used to remove excess free chlorine. This removes unpleasant smells and unwanted free chlorine reactions with the skin. The solutions can be sparged with oxygen to yield needed oxygen to the skin.
In the second method of producing the biomimetic hair, body and skin care products, the desired amount of hypochlorous acid/hypochlorite is added to the solution and the pH is adjusted. Ozone can then be introduced to that solution. After the equilibration, hydrogen peroxide can be added, and the pH adjusted to the desired value. Once again, the excess free chlorine can be removed with catalytic chlorine filters and/or air sparging devices.
In yet another aspect of the invention, methods are described to prepare lotions for hair, body and skin care products or hair care products or other beauty and health care products. Such lotions have biomimetically prepared water as the main ingredient.
In yet another aspect of the invention, methods are described to prepare gels for hair, body and skin care products or other beauty and health care products with the minimal or no use of any oil, surfactant and fat.
In yet another aspect of the invention, methods are described to prepare suppositories for the feminine hygiene and yeast infection treatment.
In further aspect of the invention, methods are described to prepare oil and surfactant containing beauty and health care products, such as shampoos, creams or suntanning products, by using biomimetically produced water solutions.
In another aspect of the invention, methods are described to prepare tooth paste or oral rinse hygiene products which are based on biomimetically produced water.
Other objects and features of the present invention will become apparent from the following detailed description considered. It is to be understood, however, that the drawings are designed solely for purposes of illustration and not as a definition of the limits of the invention, for which reference should be made to the appended claims. It should be further understood that the drawings are not necessarily drawn to scale and that, unless otherwise indicated, they are merely intended to conceptually illustrate the structures and procedures described herein.
DETAILED DESCRIPTION OF THE PRESENTLY PREFERRED EMBODIMENTS
An object of this invention is to avoid the above mentioned shortcomings of the current hair, body and skin care products. An o
Cohen & Pontani, Lieberman & Pavane
Henceforth Hibernia Inc.
Phasge Arun S,.
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