Drug – bio-affecting and body treating compositions – Live skin colorant containing – Lip
Reexamination Certificate
2002-09-23
2004-02-10
Page, Thurman K. (Department: 1615)
Drug, bio-affecting and body treating compositions
Live skin colorant containing
Lip
C424S063000, C424S401000, C424S078020, C424S078030, C424S489000, C424S500000, C424S501000, C424S502000
Reexamination Certificate
active
06689345
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a composition containing fibers and an aqueous dispersion of a polyorganosiloxane, this composition being intended for cosmetics and dermatology. More especially, the invention applies to the care and/or treatment and/or making up of keratin substances or surfaces such as the skin, including the scalp, the facial lips and superficial body growths such as the eyelashes, the eyebrows, the nails and the hair of human beings. This composition feels soft and fresh when applied, spreads easily, is non-sticky and does not dry out the skin or the lips. It is perfectly suitable for greasy skin, on account of its great matt-effect power.
This composition can be in particular in the form of a product cast as a stick or a dish, such as lipsticks or lip balms, cast foundations, concealer products, deodorants, eyeshadows or face powders; in the form of a more or less fluid paste or cream, such as fluid foundations or lipsticks, eyeliners, mascaras, care, antisun or colouring compositions for the skin, make-up compositions for the body or make-up compositions for the nails and the hair; or in the form of an aqueous gel, such as treating shampoos.
2. Description of the Background
It is known practice to use fibers in make-up products, in particular for their lengthening effects in mascaras (see JP-A-57/158 714), their “textile” feel (see JP-A-7/196 440), their fabric effect or their moisturizing properties in lipsticks (see U.S. Pat. No. 5,498,407) or for improving the contours of the lipstick on the edges of the lips (see EP-A-0 106 762). Unfortunately, it is very difficult to disperse fibers in compositions homogeneously and without forming lumps, which, in a coloured composition and in particular a make-up, generally gives a non-uniform and relatively unaesthetic make-up result whose contour is not particularly sharp. In addition, this difficulty of dispersion gives compositions whose cosmetic properties are not constant and difficult to reproduce, thus entailing problems of industrial manufacture and high manufacturing costs.
Make-up or care products for the skin or the lips of human beings, such as foundations or lipsticks, generally contain fatty phases such as waxes and oils, pigments and/or fillers and optionally additives such as cosmetic or dermatological active agents. The fillers generally serve to modify the texture of the composition and in particular to rigidify it as well as to give a matt effect to the film of composition deposited on the skin and/or the lips, which is particularly desired for users with combination or greasy skin, as well as for users in hot and humid climates. On the other hand, the pigments generally serve to bring colour to the composition. Unfortunately, the fillers used to give a matt effect do not give the skin a fresh sensation, but rather a sensation of dryness as well as tautness and discomfort.
There is thus a need for a composition which does not have the above drawbacks, and in particular which does not dry out the skin or the lips onto which it is applied, either during the application or over time, and which gives a homogeneous, aesthetic care or make-up effect and a sensation of freshness, while at the same time giving a matt effect.
SUMMARY OF THE INVENTION
An object of the invention is, precisely, a care and/or treatment and/or make-up composition for keratin substances which overcomes these drawbacks. The Applicant has found, surprisingly, that the use of fibers and an aqueous dispersion of partially crosslinked polyorganosiloxane in a make-up composition gives the composition good cosmetic properties, and in particular gives a homogeneous, uniform make-up result with sharp contours when applied, accompanied by a soft feel and a sensation of freshness. This make-up is also comfortable to wear throughout the day and has matt-effect and water-resistance properties.
The invention applies not only to make-up products for the skin, both of the human face and body, and for the facial lips, but also to make-up products for superficial body growths such as the eyelashes, eyebrows, nails and hair, as well as to care and/or treatment products for the skin, including the scalp.
DETAILED DESCRIPTION OF THE INVENTION
More specifically, an object of the invention is a care or make-up composition for keratin substances, containing an aqueous phase, particles of an at least partially crosslinked solid elastomeric polyorganosiloxane and fibers dispersed in the aqueous phase.
In particular, the polyorganosiloxane particles and the fibers are dispersed or even dissolved directly in the aqueous phase.
An object of the invention is also a cosmetic care or treatment process for keratin substances, and in particular the skin or the lips of human beings, comprising the application to these keratin substances of the composition, in particular the cosmetic composition, as defined above.
An object of the invention is also the cosmetic use of particles of an at least partially crosslinked solid elastomeric polyorganosiloxane suspended in an aqueous phase, combined with fibers, in a cosmetic composition in particular for caring for or making up keratin substances or for the manufacture of a composition for topical application and more especially a make-up or care composition for keratin substances, which is water-resistant and/or which gives a homogeneous and/or fresh and/or matt make-up or care result.
The term “fiber” should be understood as being an object of length L and diameter D such that L is very much greater than D, D being the diameter of the circle in which the cross section of the fiber is inscribed. In particular, the ratio L/D (or shape factor) is chosen within the range from 3.5 to 2500, preferably from 5 to 500 and better still from 5 to 150.
The aqueous phase advantageously contains water and optionally one or more compounds that are at least partially miscible with water, such as polyols, lower C
2
to C
5
monoalcohols and C
3
to C
4
ketones that are liquid at room temperature.
The term “room temperature” should be understood as being a temperature of 25° C., at normal atmospheric pressure (760 mmHg).
The term “polyol” should be understood as being any organic molecule comprising at least two free hydroxyl groups. In particular, the polyol(s) of the invention has (have) an IOB (inorganic/organic balance) value of greater than 0.5 and in particular ranging from 1 to 7 and more especially from 1.5 to 5.5. These polyols serve in particular as fiber-wetting agents.
The IOB parameter is known to those skilled in the art from a certain number of publications such as the article by A. Fujita, Pharm. Bull 2, 163-173 (1954) and documents J09/151 109 and J08/217 639 from Shiseido or J09/175 925 from Kose.
As examples of polyols which satisfy the above criteria and which can be used, alone or as a mixture, in the composition of the invention, mention may be made of:
Name
IOB value
Propylene glycol
3.333
Butylene glycol
2.500
Isoprene glycol
2.222
Pentylene glycol
2.000
Hexylene glycol
1.818
PEG-4 (*)
2.656
PEG-6
2.396
PEG-8
2.266
Glycerol
5.000
Panthenol
3.125
(*) In general, mention may be made of polyethylene glycols (PEG) containing from 4 to 8 ethylene glycol units.
The aqueous phase can represent from 1% to 98% relative to the total weight of the composition and preferably from 10% to 95% and better still from 30% to 95%.
The water-miscible compound(s) can be present in an amount ranging from 0% to 30% relative to the total weight of the composition, in particular from 0.1% to 30% and better still in an amount ranging from 1% to 15%.
This composition in particular feels non-sticky, non-greasy and soft when applied and spreads well, while at the same time being of uniform appearance.
The fibers which can be used in the composition of the invention can be fibers of synthetic or natural, mineral or organic origin. They can be short or long, individual or organized for example in plaits, and hollow or solid. They can be of any shape and in particular of circular or poly
Di Nola-Baron Liliana
L'Oreal
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Page Thurman K.
LandOfFree
Care or make-up composition containing fibers and a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Care or make-up composition containing fibers and a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Care or make-up composition containing fibers and a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3346297