Drug – bio-affecting and body treating compositions – Live skin colorant containing – Lip
Reexamination Certificate
1999-05-28
2003-04-29
Dees, Jose′ G. (Department: 1616)
Drug, bio-affecting and body treating compositions
Live skin colorant containing
Lip
C424S401000, C424S063000, C424S069000, C424S070120, C424S078030, C424SDIG005, C514S844000
Reexamination Certificate
active
06555097
ABSTRACT:
TECHNICAL FIELD
The invention is for compositions and method for using said compositions to improve the performance of long-wearing cosmetic products. These compositions and methods for using such compositions enable the user to significantly enhance the attributes of long-wearing cosmetic products without compromising their primary advantages.
BACKGROUND ART
Compositions used to enhance cosmetic products are known in the art. Such compositions include those that are applied over top compositions such as lipstick to provide attributes such as gloss, lubricity and transfer-resistance of the cosmetic product they are applied over. These enhancement products utilize a variety of polymeric fluids and film forming technologies. For example, acrylic film-formers that are incorporated in lipstick overcoat products such as CSI Incorporated's “Sealed with a Kiss” are delivered in a volatile vehicle, alcohol, which is spread over the lipstick surface.
Alternative topcoat products to those described above are disclosed in Japanese Patent Application Number HEI 5[1993]221829, published Aug. 31, 1993. Said overcoats are reputed to exhibit improved durability of makeup effect, suppression of color transfer, and improved applicability. Said topcoats comprise from 0.2 to 25% of silica powder and/or alumina powder and from 75% to 99.8% of a perfluoropolyether of general formula:
wherein R
1
though R
5
are independent fluorine atoms, perfluoroalkyl groups, or oxyperfluoroalkyl groups; the value of p, q, and r is at least zero; wherein the perfluoropolyether molecular weight is from about 500 to about 10,000, wherein P, Q and R may be equal, but, not zero. The preferred perfluoropolyether disclosed therein is a commercially available product known as Fomblin HC-04, HC-25, and HC-R available from Montefluosu of Milano, Italy.
While such compositions may provide certain advantages, it has been found that they often disrupt the primary advantages of the cosmetic products they are applied over. For example, cosmetic products compromise their gloss or feel attributes in order to improve the long wear properties provided by the composition that is applied over top the cosmetic product. Alternately, cosmetic products must sacrifice long wear properties in order to improve the gloss and or feel attributes provided by the such compositions.
SUMMARY OF THE INVENTION
The present invention is for compositions and methods for using said compositions with cosmetic products having a solubility parameter less than or equal to 8.5 (calories/cm
3
)
½
in order to improve the overall performance associated with the cosmetic product. These compositions comprise oils having a C log P value greater than or equal to 13.
Additionally, the present invention covers a method of improving transfer resistant, flexible film-forming cosmetic product wherein said method comprises the steps of:
a. applying a transfer resistant, flexible film-forming cosmetic product wherein said cosmetic product has a solubility parameter less than or equal to 8.5 (calories/cm
3
)
½
;
b. allowing said cosmetic product to dry; and
c. applying over said cosmetic product a second composition wherein said second composition comprises an oil having a C log P value greater than or equal to 13.
BACKGROUND OF THE INVENTION
When supplementing the benefits of a cosmetic product, the complimenting or second composition should minimize compromising said cosmetic product. The compositions of the present application may be used in conjunction with all types of cosmetic products wherein it is desirable to provide additional attributes. In the case of lip products, such attributes include gloss, shine and lubricity.
Specifically in context of film-forming cosmetic products, the second composition should be incompatible with the cosmetic product. By incompatible it is meant that the compositions of the present invention comprise specific components that do not disrupt the film formed after application of said cosmetic product. This is particularly the case for transfer-resistant, flexible film-forming cosmetic products such as lip cosmetics.
Lip cosmetics are well known in the art and can encompass a number of different formulations in order to provide both cosmetic and skin care benefits to the skin. One benefit that has been most often sought by consumers, particularly in lip cosmetic product, is increased or “long” wear.
Long wearing cosmetic products are considered by some to be those that are resistant to blotting on to another object that comes in contact with the cosmetic product; for example, resistance to lip composition coming off onto table wear such as cups and napkins. However, other factors found to be critical in predicting long wear is the ability of the cosmetic product to be flexible and resistant to solvents such as food oils once applied to the skin. Such cosmetic products are the subject matter of co-pending patent applications USSN 08/732,946 and USSN 08/732,948, now U.S. Pat. No. 6,071,503. “Transfer Resistant Cosmetic Compositions”, Drechsler et al., both filed Oct. 17, 1996; both incorporated herein by reference. Such compositions comprise organosiloxane resins, fluid diorgansiloxane polymers, and a volatile carrier wherein the film formed upon application of the cosmetic product is substantially transfer-resistant and flexible wherein the cosmetic product has surprisingly increased wear.
In one embodiment, such cosmetic compositions comprise (A) a mixture of (1) an organosiloxane resin and (2) a fluid diorganopolysiloxane polymer, wherein the ratio of (1) to (2) is from about 1:1 to about 20:1 when (2) has a viscosity from about 1,000 to about 200,000 cSt at 25° C., and a ratio of (1) to (2) from about 1:9 to about 20:1 when (2) has a viscosity greater than 200,000 cSt at 25° C.; and (B) a volatile carrier.
The cosmetic products used in conjunction with the composition of the present invention have solubility parameters less than or equal to about 8.5 (calories/cm
3
)
½
on the Hildebrand scale. In general, the solubility parameter is a function of the cohesive energy of the materials or the cosmetic product comprising said materials. Cohesive energy is simply an attractive force that is dependent on the electro-negativities of the atoms making up a molecule and serves as the basis for properties such as viscosity, adhesion, miscibility and even the boiling point. Some materials, like water, have high cohesive energy; some, like oil, have low cohesive energy. Highly cohesive ingredients are “polar”, while those less cohesive are oily or “non-polar”. Hildebrand developed a method for deriving the solubility parameter from the boiling point, molecular weight and specific gravity of a material; J. H. Hildebrand, J. M. Prausnitz and R. L. Scott, Regular and Related Solutions, New York; Van Nostrand Reinholdt (1950), herein incorporated by reference. This Hildebrand solubility parameter is published for many cosmetic and pharmaceutical materials in the Cosmetic Bench Reference, Carol Stream Ill., Allured Publishing (1992) and in A. F. Barton, Handbook of Solubility Parameters and Other Cohesion Parameters, 2nd ed., Boca Raton; CRC Press (1992); both incorporated herein by reference.
The C log P value of the oils in said composition determines whether the composition of the present invention is sufficiently incompatible with the cosmetic product in order to improve the cosmetic products performance. The value P is the octanol/water partitioning coefficient of the oils comprising said composition. The octanol/water partitioning coefficient is the ratio between said compositions equilibrium concentration in octanol and in water. Since the values of the octanol/water partitioning coefficient are high, they are more conveniently given in the form of the logarithm to the base 10, or log P.
The log P values above are calculated using the “C log P” program available from Daylight CIS. This calculated logarithm of P is based on the fragment approach of Hansch and Leo (cf., A. Leo, in Comprehensive Medicinal Che
Dohmae Terutomo
Drechsler Lee Ellen
Hines Christina M.
Rabe Thomas Elliot
Smith, III Edward Dewey
Dees Jose′ G.
George Konata M.
Kendall Dara M.
Pierre Kenya T.
Rosnell Tara M.
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