Solvent-based non-drying lipstick

Details Solvent-based non-drying lipstick Solvent-based non-drying lipstick

1999-03-22

2004-02-24

Channavajjala, Lakshmi (Department: 1615)

Drug, bio-affecting and body treating compositions

Live skin colorant containing

Lip

C424S401000, C424S063000, C424S070120, C514S063000

Reissue Patent

active

RE038441

ABSTRACT:

BACKGROUND OF INVENTION
1. Field of Invention
This invention relates to a lipstick composition and product and, more particularly, to a long wearing non-drying lipstick.
2. Problems to be Solved and Prior Art
There has been a recent trend in the cosmetic field to provide long lasting, longer wear products. In the case of lipsticks, for example, long lasting requires, among other characteristics, resistance to transfer from the lips to other surfaces such as glassware, silverware, clothing, etc. It is also important, especially in light of the long periods of time these products remain on the lips or skin, particularly for lipstick products, that the product remains moist and/or retains moisture. One attempt at such a cosmetic product having long wear characteristics is described in published European Patent Application 0602905A2 (published Jun. 22, 1994) and in corresponding U.S. Pat. No. 5,505,937. A protective lipstick product is disclosed, for example, in U.S. Pat. No. 5,093,111. In addition to waxes, oils and colorants, the lipstick composition of this patent includes, in specified proportions, cetearyl isononanoate, a sesquistearate, and isopropyl hydroxystearate. Use of fatty acid esters of &agr;-tocopherol+(Vitamin E) as a moisturizer in cosmetic compositions is disclosed in U.S. Pat. No. 4,760,095. A lipstick formulation is shown in Example 2 of this patent.
In U.S. Pat. No. 5,288,482, it is taught that the durability of lipcare products may be increased by including an alkylmethyl polysiloxane. See also, e.g., U.S. Pat. No. 4,980,167 for a lipstick containing a silicone rubber and a silicone oil.
While the above and other patented as well as commercially available lipstick products are known which provide varying degrees of moisturization and/or long wear properties, still further improvements are desired, particularly, with regard to non-drying/moisturizing properties.
SUMMARY OF THE INVENTION
It has now been discovered that the above and other drawbacks of known lipcare products may be eliminated by including a blend of moisturizing and moisture retaining agents with other conventional lipcare product ingredients.
Accordingly, the present invention provides in a lipcare composition of the wax based non-smearing type and containing a volatile solvent and non-volatile silicone polymers, a moisturizing effective amount of a mixture of (i) diisoarachidyl dilinoleate; (ii) C
14
to C
22
fatty acid ester of alpha-tocopherol; (iii) moisture retaining emulsion stabilizing emollient, and (iv) lipophile moisturizer having delayed and remanent effect.
The preferred lipcare product may be provided in stick form, however, creams, pastes, gels, balms, lotions, and the like are also within the scope of the invention. Furthermore, the preferred lipstick compositions and products are colored lipstick cosmetic products containing cosmetically acceptable colorant, particularly solid pigments and dyestuffs.
DETAILED DESCRIPTION OF INVENTION AND PREFERRED EMBODIMENTS
The formulations disclosed herein contain cosmetically acceptable ingredients that are suitable for application to the mouth and oral cavity and which, when applied to the lips, provides long wear characteristics while moisturizing and conditioning the skin (lips).
Moisturizing Mixture
The enhancement of the moisturizing and conditioning benefits achieved by the present invention result from the incorporation of a mixture of moisturizers which are more effective and more active then moisturizer mixtures previously used in lipcare products. Moreover, this moisturizer mixture may be incorporated into the formulation in a significantly greater percentage of the formulation than was practical with prior known lipcare products.
According to the invention the moisturizer mixture includes four essential moisturizing agents: (i) diisoarachidyl dilinoleate, (ii) C
14
to C
22
fatty acid ester of alpha-tocopherol, (iii) moisture retaining emulsion stabilizing emollient; and (iv) lipophile moisturizer with delayed and remanent effect.
Each of these moisturizing ingredients will now be explained in greater detail below.
Diisoarachidyl dilinoleate is an essential moisturizing agent for the lipcare products of this invention. It is incorporated in amounts of usually from about 1 to about 20% by weight, preferably from about 4 to 15% by weight and, especially preferably, from about 10 to 13% by weight, based on the total formulation. Diisoarachidyl dilinoleate is available under the tradename LIQUIWAX DIEFA, from Brooks Industries, Inc., South Plainfield, N.J. As described in the technical literature for this product, Liquiwax Diefa is a liquid wax emollient which will soften skin without the greasiness and oiliness associated with conventional oils and esters. Liquiwax Diefa contains essential fatty acids, specifically omega-6-linoleic acid. The essential fatty acid (EFA) component helps normalize the epidermal lipid structure and promote the formation of normal healthy looking skin. Liquiwax Diefa is further described as an odorless and tasteless, clear light-colored liquid which is spreadable and has good cushion on the skin. It is recommended as a vehicle for the delivery of active topical ingredients.
In the present invention, the diisoarachidyl dilinoleate moisturizing ingredient may also function as an oil soluble liquid component as discussed in further detail below.
The preferred fatty acid ester of alpha-tocopherol is tocopheryl linoleate. However, any of the alpha-tocopherol esters disclosed in U.S. Pat. No. 4,760,095, the disclosure of which is incorporated herein by reference thereto, may be used in this invention.
The amount of the alpha-tocopherol ester moisturizing ingredient may range from about 0.1 to about 10% by weight, preferably from about 0.5 to about 5% by weight; based on the total formulation. A more preferred range is from about 0.6 to about 2% by weight of the total formula.
The third essential moisturizing ingredient is the moisture retaining emulsion stabilizing emollient. A particular preferred emollient is cholesteryl/behenyl/octyldodecyl/lauroyl glutamate complex, available under the tradename Eldew CL-301, a product of Ajinomoto U.S.A., Inc., Teaneck, N.J.
This glutamate complex is a petroleum-like wax at room temperature and melts rapidly at human body temperature. It is derived from L-glutamic acid, lauric acid and three alcohols (cholesterol, 2-octyldodecanol and behenol) and may be characterized by the formula
where R and R
1
represent, individually, cholesteryl, 2-octyldodecyl, behenyl. The ratios of the three alcohols may be varied widely but, generally, such ratios would be nearly equimolar, such as, for example, from 10 to 60 mole % for each of the alcohols, although higher or lower ratios could be used according to need. Moreover, other similar alcohols may be used in place of some or all of one or more of cholesterol, 2-octyldodecanol, and behenol, so long as its water absorbing and retaining capacity is not significantly impaired.
In addition to its high water holding capacity, Eldew CL-301 is stated to have high moisture permeability (e.g. to perspiration) to allow excess moisture to evaporate freely from the skin surface. Eldew CL-301 also is characterized by its ability to improve dispersion of pigments in make-up and other color cosmetics.
While the glutamic acid complex is the preferred moisture retaining emulsion stabilizing emollient other suitable materials may be used in place of or in addition to the glutamic acid complex, such as, for example, pyrrolidone carboxylic acid (PCA) glyceryl oleate, dipalmitoylhydroxyproline, cetearylglucoside, Polyolprepolymer-2, Petrolatum, caprylic/capric/stearic triglyceride, Shea Butter, cholesterol, lecithin, phospholipids, Illipe Butter, and the like.
The moisturizing additive (iii) is incorporated in an amount of from about 0.1 to about 10% by weight, preferably from about 0.5 to about 5% by weight, and especially preferably from about 0.6 to about 2% by weight based on the total weight of the composition.
Moisturizing additive (iv) is in

Affiliated with

Also associated with

Rating

Solvent-based non-drying lipstick does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Solvent-based non-drying lipstick, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Solvent-based non-drying lipstick will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3327951