Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Reexamination Certificate
1999-12-28
2001-07-24
Kopec, Mark (Department: 1751)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
C510S119000, C510S120000, C510S130000, C510S132000, C510S135000, C510S136000, C510S141000, C510S158000, C510S159000, C510S499000, C510S504000
Reexamination Certificate
active
06265364
ABSTRACT:
BACKGROUND OF THE INVENTION
Skin moisturization has been a desired skin benefit for many years. Dry skin can be a result of environmental effects such as sunlight, dry winter air, dermatological condition as well as the application of cleansing materials to the skin such as soap or other harsh detergents which remove oils that are naturally present on the surface of the skin thereby resulting in a loss of moisturization.
Often times the active ingredients used for the improvement of hair structure and skin surface are usually cationic surfactants in combination with various wax-type additives such as, for example, vaseline, fatty acid esters and fatty alcohols. According to WO 96/27363, however, hair and skin treatment agents on that basis, though, have satisfactory results only in the treatment of dry and porous hair, or dry and porous skin. This document then states that for the treatment of hair/skin that quickly replenishes the fat, they are not as well suited because when they are used, the natural fat replenishment is even increased. The document states the reasons for the strong replenishment of fat are especially the cationic emulsifiers contained in these agents. The document states that it was its task to make available a hair and/or skin treatment agent on the basis of conditioning active ingredient which does not have the disadvantages mentioned. Thereafter, the application discloses a cosmetic agent containing water and a combination of:
a. 0.1 to 25% by weight, of at least one choline salt of an inorganic acid or an organic carboxylic acid or a polyacrylic acid homo- or copolymer, and
b. 0.1 to 10% by weight, of at least one physiologically compatible aliphatic organic acid.
It is then stated that the agent in accordance with the invention improves the ability of the hair to be combed wet, shows good compatibility with the scalp, and gives the hair a soft feel and a beautiful shine. It is further stated that the agent in accordance with the invention shows good compatibility with the skin and the eyes, gives the skin a well-groomed appearance, and is also biodegradable.
There is no information provided in the document as to the specific action of the choline salt on skin other than it “gives the skin a well groomed appearance”. Example 5 of the document, a shampoo for hair and skin, states that the skin shows a smooth, soft skin surface after use. Example 6, a skin care cream, states that the skin feels smoother and supple after use. Example 7, an oil in water body lotion, states that the composition increases skin moisture and leaves a pleasant feeling. Present in Example 7 with 7 wt % of choline salts are also 10 wt % cetylstearyloctanoate, 5 wt % glycerine, 4 wt % cetylstearylalcohol, 3 wt % sorbitan stearate, and 1 wt % dimethyl polysiloxane. These latter materials are all well known moisturizing agents.
Nowhere in WO 96/27363 is there a clear definition of what “conditioning” agent means. Conditioning in general means making skin feel soft and smooth. A conditioning agent does not necessarily bring about moisturization. Such an agent is generally known as a moisturizing agent. Sometimes these two activities are broadly grouped under the category of “conditioning and moisturizing” agent.
We have now discovered that choline salt and related compounds are powerful moisturizing agents for skin. Even in a rinse off cleansing composition such material(s) or mixture thereof brings about substantially more moisture on the skin. This can be a statistically significant measurable quantity of moisture on the skin.
SUMMARY OF THE INVENTION
In accordance with the invention, there is a cosmetic composition comprising
a. a moisturizing effective amount of a compound of the formula
wherein X is selected from the group consisting of:
CH
2
OH, CH OH CH
2
CO
2
—,
or mixtures thereof with the proviso that when X does not bear a negative charge, the compound is a salt and (b) a skin compatible carrier for the said compound. Such counterion making the salt is derived from an inorganic acid such as hydrochloric, sulfuric, phosphoric and the like or organic acids such as acetic, lactic, citric and the like.
The composition can be used to moisturize the skin. Significant measurable increases in moisture can be obtained when the composition is applied to the skin. The composition can be in the form of a liquid, solid, or gelled cleansing formulation. Such liquids or gels can be in various cosmetic forms such as lotion, cream and the like. A desirable form is a liquid cleansing composition. The preferred compound is a salt of choline, for example, the chloride salt. When using a salt of choline, a physiologically compatible aliphatic organic acid need not be present in the composition in the range of about 0.05 to about 15 percent by weight of the composition, or even about 0.1 to about 10 wt % of the composition. In fact, such physiologically compatible aliphatic organic acid need not be present in the composition at all. If a physiologically compatible aliphatic organic acid is present in the composition, it is desirably less than about 0.05 wt % or above about 15 wt % of the composition.
DETAILED DESCRIPTION OF THE EMBODIMENT
The moisturizing compound can be formulated into a variety of compositions, liquid, solid and gel-like for delivery of its moisturizing benefit. When formulated with a solid, the moisturizing compound can be present with large or small quantities of soap with the remainder of the surfactant being none, smaller or larger quantities of anionic surfactant such as synthetic surfactant. When formulated with a liquid or gel composition, the moisturizing compound is formulated with various amounts of water depending upon the usage of the composition as a cleansing composition, as well as various surfactants of an anionic, nonionic, cationic, amphoteric type, or mixtures thereof. The liquid or gel formulations, particularly the liquids can be formed as a cream or lotion or free flowing liquid which has cleaning abilities, moisturizing and/or conditioning abilities, or a mixture of the cleansing with the moisturizing and/or conditioning benefits. By conditioning is meant increasing the smoothness or suppleness of the skin. By moisturizing is meant the actual increasing of water content of the skin.
Other conditioning and moisturizing agents also can be present in the compositions of the invention. Typical moisturizing or conditioning materials include urea, lactic acid, pyrrolidone carboxylic acid, amino acids and salts of the acids mentioned.
Occlusive agents are further examples of substances which can be present in the composition. These are substances which form on the skin thin films of limited permeability, serving to hold water within the skin and prevent dehydration. The range of occlusive agents is considerable. They are generally hydrophobic oils and waxes. Examples of classes of such agents and individual examples of such agents are:
1. Hydrocarbon oils and waxes. Examples thereof are mineral oil, petrolatum, paraffin, ceresin, ozokenite, microcrystalline wax.
2. Silicone oils, such as dimethyl polysiloxanes, methylphenyl polysiloxanes, silicone glycol copolymers.
3. Triglyceride esters, for example, vegetable and animal fats and oils.
4. Glyceride esters and esters such as acetylated monoglycerides, and ethoxylated monoglycerides.
5. Alkyl and alkenyl esters of fatty acids having 10 to 20 carbon atoms. Examples include hexyl laurate, isohexyl laurate, isohexyl palmitate, isopropyl myristate, isopropyl palmitate, decyl oleate, isodecyl oleate, hexadecyl stearate, decyl stearate, isopropyl isostearate, diisopropyl adipate, diisohexyl adipate, dihexyl decyl adipate, diisopropyl sebacate, lauryl lactate, myristyl lactate, cetyl lactate, oleyl myristate, oleyl stearate and oleyl oleate.
6. Fatty alcohols having 10 to 20 carbon atoms. Lauryl, myristyl, cetyl, hexadecyl, stearyl, isostearyl, hydroxystearyl, oleyl, ricinoleyl, behenyl, erucyl, and 2-octyl dodecanyl alcohols are examples of satisfactory fatty alcohols.
7. Lanolin and derivatives. Lanolin, l
Kilpatrick-Liverman LaTonya
Nabi Zeenat
Polefka Thomas G.
Barancik Martin B.
Boyer Charles
Colgate-Palmolive Company
Kopec Mark
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