Drug – bio-affecting and body treating compositions – Live hair or scalp treating compositions – Hair coloring
Reissue Patent
1999-07-16
2001-09-18
Dubash, Diana (Department: 1619)
Drug, bio-affecting and body treating compositions
Live hair or scalp treating compositions
Hair coloring
C424S063000, C424S070100
Reissue Patent
active
RE037380
ABSTRACT:
The present invention relates to a composition which is intended, in particular, for eye makeup and to a process for the preparation of this composition.
It is known to use waxes in eye makeup compositions. However, these compositions based essentially on wax provide a makeup of mediocre quality.
Also known is the addition of a film-forming agent of polymeric type in solution to the aqueous phase of the cosmetic composition. However, this addition is not always satisfactory in terms of the result which is obtained after application to the lashes.
It is also known to incorporate deoxyribonucleic acid into cosmetic compositions with the aim of promoting cell regeneration in the skin or for the regrowth of hair, or to stimulate antiseborrhoeic activities.
However, deoxyribonucleic acid is not known as a component in makeup compositions.
The composition according to the invention has enabled the abovementioned problems to be overcome. In particular, it has surprisingly been discovered that the addition of deoxyribonucleic acid to an eye makeup composition substantially improves the cosmetic qualities, such as the lengthening and curvature of the lashes.
The present invention relates to a composition which comprises, optionally in the presence of a cosmetically acceptable vehicle, deoxyribonucleic acid or an inorganic or organic salt thereof and at least one wax. This composition may be used advantageously for eye makeup.
The ratio by weight of the quantity of deoxyribonucleic acid to the quantity of wax may be between 0.025 and 2.5.
The molecular weight of the deoxyribonucleic acid may be between 1×10
5
and 1×10
7
daltons, preferably between 5×10
5
and 5×10
6
daltons.
The quantity of deoxyribonucleic acid may be between 0.02% and 5% by weight of dry polymer material, preferably between 0.05 and 2% by weight of dry polymer material relative to the total amount of polymers which may be present in the composition.
The waxes which are used in the makeup composition may be chosen from animal, vegetable, mineral or synthetic waxes or a mixture thereof.
The eye makeup composition may also comprise pigments chosen from inorganic and organic pigments and, optionally, nacreous pigments. These pigments are present in a proportion ranging from 3 to 25% by weight relative to the total weight of the composition, depending on the coloration and intensity of coloration which it is desired to obtain.
The composition according to the present invention may be presented in the form of emulsions such as oil-in-water or water-in-oil emulsions, in the form of a suspension in a solvent medium, in the form of microdispersions or else in solid or anhydrous paste form.
When it is used in the form of an emulsion the composition may contain surfactants which are present in a proportion of between 2 and 30% by weight relative to the total weight of the composition. These surfactants are chosen from anionic or nonionic surfactants.
The present invention also relates to a process for the preparation of the composition, which consists in mixing deoxyribonucleic acid with an oily phase containing at least one wax and, if desired, surfactants.
According to this process, the deoxyribonucleic acid may be present in an aqueous phase. A pigment may be added to the oily phase.
The components of the oily and aqueous phases may independently be dissolved or melted at a temperature of 85° C. and then mixed.
The present invention will now be described in more detail.
The deoxyribonucleic acid which is used in one of the compositions according to the invention may be either of animal or plant origin and may be in the form of one of its inorganic or organic salts. The deoxyribonucleic acid which is already used in the field of ophthalmology may be considered for the use of a composition for eye makeup, such as mascara, since this acid is very well tolerated by the eye.
The waxes chosen in the composition according to the invention generally possess a melting point of between 60 and 110° C. and have a needle penetration at 25° C. of between 3 and 40, as measured in accordance with the American standard ASTM D 5 or in accordance with the French standard NFT 004. The principle of measuring the penetration of a needle in accordance with the standards ASTM D 5 and NFT 004 consists in measuring the depth, expressed in tenths of millimeters, to which a standardized needle weighing 2.5 g penetrates when placed in a needle holder weighing 47.5 g, corresponding to a total of 50 g, the needle being placed on the wax for 5 seconds.
The waxes which may be employed in the present invention can be chosen from animal waxes, plant waxes, mineral waxes, synthetic waxes and various fractions of natural waxes, all of the waxes having the two physical characteristics mentioned above.
Among the animal waxes, mention may be made of beeswaxes, lanolin waxes and Chinese insect waxes.
Among vegetable waxes, it is possible to mention rice waxes, carnauba wax, candelilla wax and ouricury wax, cork fibre waxes, sugar cane waxes, Japan waxes, sumac wax and cotton wax.
Among inorganic waxes it is possible to mention paraffins, microcrystalline waxes, montan waxes and ozokerites.
Among synthetic waxes, it is possible to use, in particular, polyethylene waxes, waxes obtained by the Fischer and Tropsch synthesis, and waxy copolymers and their esters.
It is also possible to use hydrogenated vegetable or animal oils which in each case meet the two physical characteristics mentioned above. Among these oils, it is possible to mention hydrogenated jojoba waxes and hydrogenated oils obtained by catalytic hydrogenation of fatty substances consisting of a C
8
-C
32
linear or nonlinear fatty chain, hydrogenated sunflower oil, hydrogenated castor oil, hydrogenated copra oil and hydrogenated lanolin.
The waxes which may be used according to the present invention are preferably solid and firm at temperatures below 50° C.
These waxes may be present in the form of stable dispersions of colloidal wax particles, as may be prepared by known methods such as in “Microemulsions Theory and Practice”, L. M. Prince Ed., Academic Press (1977), pages 21-32.
In addition to the waxes and the deoxyribonucleic acid, the composition according to the invention may also comprise pigments chosen from inorganic pigments, organic pigments and nacreous pigments. Among inorganic pigments it is possible to use titanium dioxide (rutile or anatase) which may have been surface-treated and is codified in the Colour Index under the reference CI 77891, red, yellow and black iron oxides with the respective references CI 77499, CI 77492 and CI 77491, the manganese violet of reference CI 77742, the ultramarine blue of reference CI 77007, the chromium oxide of reference CI 77288, the chromium hydrate of reference CI 77289 and the ferric blue of reference CI 77510.
The organic pigments may be chosen from carbon black, the pigments D & C Red No. 19 of reference CI 45 170, D & C Red No. 9 of reference CI 15 585, D & C Red No. 21 of reference CI 45 380, D & C Orange No. 4 of reference CI 15 510, D & C Orange No. 5 of reference CI 45 370, D & C Red No. 28 of reference CI 45 410, D & C Red No. 13 of reference CI 15 630, D & C Red No. 57 of reference CI 15 850, D & C Yellow No. 23 of reference CI 19 140, D & C Red No. 36 of reference CI 12 085, D & C Acid Red No. 95 of reference CI 45 425, D & C Yellow No. 6 of reference CI 15 985, D & C Red No. 30 of reference CI 73 360, D & C Red No. 3 of reference CI 45 430 and the cochineal carmine-based lakes of reference CI 75 470.
The nacreous pigments may be chosen from white nacreous pigments, such as mica coated with titanium or with bismuth oxychloride, coloured nacreous pigments such as titanium-mica with iron oxides, titanium-mica with, in particular, ferric blue or chromium oxide, titanium-mica with an organic pigment of the type mentioned above, and nacreous pigments based on bismuth oxychloride.
The composition according to the invention, since it may be presented in the form of emulsions, will also comprise surfactants chosen from an
Felardos Christian
Patraud Jeanne
Piot Bertrand
Berman Alysia
Dubash Diana
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