Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Cosmetic – antiperspirant – dentifrice
Reexamination Certificate
2000-04-21
2002-10-15
Kishore, Gollamudi S. (Department: 1615)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Cosmetic, antiperspirant, dentifrice
C424S070100, C424S750000, C514S844000, C514S880000
Reexamination Certificate
active
06464991
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to novel oat-lipid based surfactants and derivatives, and emollients, their process of manufacture, their use in the production of surface active derivatives, non-surface active esters, and ester emollients, and skin and hair care preparations containing the surfactants, derivatives, and emollients. The surfactants and fatty ester derivatives are useful as emollients, dispersants, emulsifiers, and conditioners for hair care and skin care products.
2. Description of the Related Art
Surfactants and derivatives are known for a variety of different applications for cosmetic, pharmaceutical, and medicinal purposes.
Numerous references describe the production and use of surface active derivatives or non-surface active esters, and ester emollients. For example, it is known to use oats and oat extract in cosmetic preparations to obtain the benefits of mildness, antioxidant properties, etc. Surfactants and fatty derivatives useful as emollients, dispersants, emulsifiers and conditioners for hair and skin care products are commonly produced from a wide variety of fatty acids, fatty alcohols and amines, polyamines, dialkyl propylamines, alkanolamines, etc. However, none of these references teach or suggest the specific novel oat-based surfactants made from the fatty oil triglyceride obtained from oats, or OFTG, of this invention or the use of OFTG to produce surface active derivatives or non-surface active esters, and ester emollients for cosmetics and personal care products.
More specifically, oat-based compositions are disclosed in U.S. Pat. Nos. 5,620,692 and 5,622,690 to Potter et al. assigned to Nurture, Inc. of Missoula, Mont. The disclosures of these patents are incorporated herein by reference.
U.S. Pat. No. 5,620,692 to Potter et al. discloses a process for preparing oat oil compositions having antioxidant and dermatological properties.
U.S. Pat. No. 5,622,690 to Potter et al. discloses a method for reducing sunburn by applying a topical formulation comprising an amount of a free flowing seed derived material, preferably oats, having a protein content of between about 1% to 50%, and a average particle size from 1.0 um to 600 um, to skin prior to exposure to ultraviolet radiation.
U.S. Pat. No. 4,014,995 to Juliano et al. discloses a liquid cosmetic preparation comprising a colloidally stable dispersion of 1 to 10% by weight of oat flour in a liquid vehicle. The oat flour is obtained by grinding oat flakes and screening for the preferred particulate size. The oat flour functions to moisturize the skin.
U.S. Pat. No. 4,211,695 to Oughton discloses a process for separating comminuted oats into fractions such as bran, oat oil, flour and protein-enriched or protein deficient flours, for use in the food industry. The process comprises admixing comminuted dehulled oats with an organic solvent for oat oil, and subjecting the admixture, in the form of a slurry, to centrifugal force.
U.S. Pat. No. 4,211,801 to oughton discloses a process for separating substantially gum-free flour from oats, comprising admixing comminuted oats with a solvent for oil in the oats and separating substantially gum-free flour from the admixture, and recovering oat oil from the solvent. The products are used in the food industry.
U.S. Pat. No. 5,026,548 to Evans discloses a surfactant for use as a viscosity reducing agent in chocolate, produced by extracting oats with an aliphatic alcohol, extracting the alcohol extract with methanol, and evaporating the methanol.
U.S. Pat. No. 5,552,135 to Cioca et al. discloses a sunscreen composition comprising an oat extract, a sunscreening agent, and a vehicle for enabling said composition to be applied to the skin.
U.S. Pat. No. 5,888,515 to Albert et al. discloses a topical composition for treating poison ivy comprising jewelweed extract, plantain leaf extract and a quantity of an aqueous colloidal dispersion of oat grains, in admixture. The colloidal oat dispersion acts as an excipient and delivery agent for the jewelweed and plantain enzymes and provides anti-inflammatory and anti-itch effect.
U.S. Pat. No. 5,589,195 to Potter discloses a method of forming a film on a surface comprising providing a film-forming emulsion comprising an emulsifier consisting essentially of a proteinaceous particulate matter derived from oat seed.
U.S. Pat. No. 5,817,608 to Bell discloses a cleansing composition having a silicone conditioning agent, and refined oats that have been at least partially defatted and from which at least some of the bran has been removed, so that the conditioning agent is carried by the refined oats.
U.S. Pat. No. 5,863,945 to Murayama et al. discloses amide derivatives and skin and hair preparations containing the amide derivatives.
U.S. Pat. No. 5,888,521 to Zimmerman discloses a composition comprising a hydroxycarboxylic acid (such as glycolic, lactic, citric or malic acids) and oat extract, where the oat extract contains less than about 1% beta-glucan. The composition is applied to the skin to increase the rate of skin exfoliation.
However, among the foregoing patents, none disclose or suggest the specific novel oat lipid based surfactants and derivatives of the invention, a process of preparing same, or the use of such derivatives and surfactants having mildness and emolliency for cosmetics and personal care products.
OBJECTS AND SUMMARY OF THE INVENTION
It is an object of the invention is to provide novel oat-based surfactants and derivatives which are made from a naturally renewable source.
It is another object of the present invention to provide surfactants and derivatives which are made from oat fatty triglyceride.
It is another object of the invention to provide novel oat-based surfactants and derivatives for use in hair care, skin care and other personal care products.
It is yet another object of the invention to provide novel oat-based surfactants and derivatives which have a usefulness similar to conventional amides and betaines.
A further object of the invention is to provide novel oat-based surfactants and derivatives for use in skin care products where the skin feel is even better than conventional derivatives.
It is a further object of the invention to provide novel oat-based surfactants and derivatives having mildness and emolliency for use in skin care and hair care products.
Yet a further object of the invention is to provide novel oat-based surfactants and derivatives which inherently possess natural antioxidants and vitamin factors for use in skin care and hair care products.
Yet another object of the invention is to provide novel oat-based surfactants and derivatives having very low to negligible toxicological effects.
Another object of the invention is to provide formulations containing novel oat-based surfactants and derivatives which are very mild and have a very low toxicological profile.
Another object of the invention is to provide low-irritation oat-based surfactants and derivatives for skin care and hair care products.
A still further object of the invention is to provide novel oat-based surfactants and derivatives having a fatty acid composition profile close to that of the principal constituents of human skin surface lipids that play a key role in maintaining the normal barrier function of healthy skin.
Another object of the invention is to provide a method of producing mild, emollient hair care or skin care products using oat-based surfactants and derivatives.
These and other objects are accomplished by providing oat-based surfactants and derivatives which are improved as compared to commercially available surfactants and derivatives, as they are made from a naturally renewable source, namely, oats. The surfactants and derivatives are mild and have antioxidancy activity. Skin and hair care formulations containing the surfactants and derivatives of the invention are mild and emollient, have very low toxicological profiles, and are not irritating to the skin.
DETAILED DESCRIPTION OF THE INVENTION
Major fatty raw materials are fatty triglycerides f
Syed Samad A.
Walele Ismail I.
Finetex, Inc.
Kishore Gollamudi S.
Weingram & Associates P.C.
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