|Número de publicación||USRE39218 E1|
|Tipo de publicación||Concesión|
|Número de solicitud||US 09/987,885|
|Fecha de publicación||1 Ago 2006|
|Fecha de presentación||16 Nov 2001|
|Fecha de prioridad||30 Sep 1994|
|Número de publicación||09987885, 987885, US RE39218 E1, US RE39218E1, US-E1-RE39218, USRE39218 E1, USRE39218E1|
|Inventores||Myriam Mellul, Paul Thau, Paul Fehn, Carlos Pinzon|
|Exportar cita||BiBTeX, EndNote, RefMan|
|Citas de patentes (105), Otras citas (57), Citada por (3), Clasificaciones (39), Eventos legales (5)|
|Enlaces externos: USPTO, Cesión de USPTO, Espacenet|
This is a continuation of application Ser. No. 08/882,298, filed Jun. 25, 1997 now U.S. Pat. No. 5,849,316, which is a continuation of application Ser. No. 08/538,046, filed Oct. 2, 1995, now abandoned.
The invention is directed to anhydrous and water-resistant make-up compositions comprising, inter alia, at least one silicone gum.
Water-resistant compositions in water-in-oil or water-in-silicone emulsion form are known in the prior art. The use of such emulsions relies on the fact that after spreading, the water evaporates and the oil or the silicone remains in contact with the skin, giving a water-resistant make-up. However, the application of such compositions has the drawback of leaving the skin with an oily appearance and of giving a greasy feel. The result obtained after application is not really natural, and the make-up shines or becomes shiny.
Another form of water-resistant cosmetic compositions is a composition in which fillers, including pigments, are introduced into a volatile or non-volatile silicone oil. The major drawback of this type of composition lies in the stretching effect on the skin, and in the unpleasant, dry sensation which appears after application. Furthermore, the effect sought in the use of such compositions containing pigments, namely a coloration of the skin, is often not achieved. The very nature of the composition is such that the distribution of the pigments in the composition after spreading is not homogeneous; the pigments spread more or less uniformly and tend to agglomerate in the pores and the folds in the skin. This effect runs counter to the search for a coloration close to that obtained naturally.
In all cases, the compositions obtained have faults both with regard to the stability and with regard to the homogeneity of the dispersion of the pigments. Solutions to these problems have been proposed, such as, for example, the use of water-soluble dyes or of dihydroxyacetone (DHA). In the case of water-soluble dyes, the make-ups obtained are not water-resistant and are not perfectly homogeneous.
Products using DHA are difficult to formulate, on account of the degradation and the incompatibility of DHA with many components usually used in compositions of this type. In addition, a major drawback of DHA, in its use in cosmetic compositions, lies in the development of unpleasant odors during ageing.
An object of the present invention is to provide solutions to the various problems encountered in the applications of the prior art and to propose a cosmetic composition possessing good water resistance and at the same time possessing good cosmetic properties.
The Inventors have been able to show, surprisingly and unexpectedly, that it is possible to obtain anhydrous, water-resistant make-up compositions which are highly homogeneous in particular with regard to spreading, by mixing together pigments and at least a large proportion of silicone gum and a silicone oil.
More particularly, a subject of the present invention is an anhydrous, water-resistant cosmetic composition preferably comprising from 2 to 50% of at least one silicone gum, from 10 to 90% of at least one silicone oil, from 0.5 to 15% of at least one pigment and from 0 to 30% of at least one filler.
The compositions according to the invention have the advantage of being stable over time. They are water-resistant since they are anhydrous, and do not contain any water-soluble dyes or solvent. They also have good staying power and do not cause any pulling effect on the skin.
It has furthermore been observed, surprisingly, that the pigments present in the compositions according to the invention were dispersed therein in an unexpectedly very homogeneous manner. This thus has the additional advantage of giving a very uniform and very homogeneous make-up of the skin.
In the following text, the percentages will always be given by weight of active material relative to the total weight of the composition.
In the compositions according to the invention, the silicone gum is preferably present in a proportion ranging from 2% to 50%, more preferably ranging from 4 to 15% and still more preferably ranging from 6% to 9%.
The silicone gum preferably has a molecular weight not greater than 1,500,000. More preferably, the silicone gum has a molecular weight ranging from 200,000 to 1,000,000.
The silicon gum preferably corresponds to the formula:
In general, n and p may have values preferably ranging from 0 to 5000, and more preferably ranging from 0 to 3000.
As silicone gum which may be used according to (the invention, there may preferably be mentioned those for which:
The composition according to the invention preferably also comprises at least one silicone oil, in a proportion preferably ranging from 10 to 90%.
A volatile or non-volatile silicone oil may be used.
There may be mentioned, for example:
According to a preferred embodiment of the invention, the silicone oil and gum are used in the form of a homogeneous premix consisting of the silicone gum solubilized in the silicone oil.
The composition according to the invention preferably also comprises pigments, in a proportion ranging from 0.5 to 15%, and more preferably ranging from 2 to 8%.
The pigments may be white or coloured and inorganic or organic.
The pigments used in the composition according to the invention may or may not be coated.
U.S. Pat. No. 4,578,566, the disclosure of which is incorporated herein by reference, describes a pretreatment of pigments in order to make them hydrophobic, as a solution in order to introduce large proportions thereof into silicone-based compositions, and in order to ensure better dispersion thereof in the composition. This pretreatment is carried out by coating the pigments with a polysiloxane. Obviously, this pretreatment increases not only the preparation time of the compositions but also their cost.
As has been mentioned above, a particular advantage of the invention lies in the fact that the compositions according to the invention allow a homogeneous and stable dispersion to be obtained, even when pigments which have not been precoated are used.
Among the pigments which may preferably be used, there may be mentioned, without any limiting effect, titanium dioxide (TiO2), zinc oxide (ZnO), zirconium dioxide (ZrO2), black, yellow, red and brown iron oxides, cerium dioxide (CeO2) or alternatively the organic pigments known as barium, strontium, calcium and aluminium lakes.
The composition according to the invention preferably contains 0 to 30% of fillers. These fillers may preferably be inorganic or synthetic and lamellar or non-lamellar.
Talc, mica, silica, kaolin, powders of nylon and of polyethylene, Telfon, starch, titanium mica, natural mother of pearl, boron nitride and hollow microspheres such as Expancel from Nobel Industrie may be mentioned.
The composition according to the invention may also comprise constituents usually used in cosmetic compositions of this type. These constituents are preferably chosen as a function of the desired cosmetic effect for the final composition, such as the covering power, the transparency, the matt quality and/or the satiny appearance.
There may be mentioned, without any limiting effects:
The processes for the manufacture of the compositions according to the invention do not differ in any way from the processes conventionally used in cosmetics and with which those skilled in the art are fully familiar.
The compositions according to the invention may be in the form of a product for making up the skin, such as a foundation, a blusher, an eyeshadow or a lipstick, or even in the form of a hair product such as a styling make-up gel.
Examples of compositions according to the invention will now be given by way of example, without any limiting nature being implied.
Make-up gels having the following compositions (in g) were prepared:
at a concentration
of 12-14% in
(Q2-1401 from Dow)
TiO2 + iron oxides*
bentone gel IMP (NL
bentone gel VS-5 PC
A) and B) were mixed together with a spatula and were passed 3 times through a cylinder mill. C), D) and E) were then added with moderate stirring.
Three formulae were obtained, which contained a large proportion of silicone-containing compounds and which made it possible to obtain, after spreading on the skin, a coloured and water-resistant make-up.
Although the pigments used were not precoated, the pigments were fully dispersed in the composition and the make-up obtained was homogeneous.
Self-tanning compositions having the following compositions (in g) were prepared:
at a concentration
of 12-14% in
TiO2 + iron oxides*
powder in a PDMS
(KSG 16 from Shin
bentone gel VS-5 PC
Thickened gelled creams were obtained, which were easy and pleasant to apply, and which gave a homogeneous and uniform coloration of natural appearance to the skin.
Water-resistant silicone-containing self-tanning compositions having the following compositions (in g) were prepared:
Silcone oil (AK 500,000
Polydimethylsiloxane at a
concentration of 12-14% is
cyclomethicone (Q2-1401 from
Polyphenylsiloxane at a
concentration of 15% in
(Silbione 71634 from Rhone-
TiO2 + iron oxides*
Crosslinked silicone powder
(KSG 16 from Shin Etsu)
Gelling agent (Bentone gel
VS38 from Rhéox)
beads (Tospearl 120 from
Coloured and water-resistant self-tanning compositions were obtained in the form of gels.
A lipstick having the following composition was prepared:
Polydimethylsiloxane at a concentration of
12-14% in cyclomethicone (Q2-1401)
Crosslinked silicone powder in PDMS (KSG 16
from Shin Etsu)
Silicone-coated titanium oxide
Silicone-coated iron oxides
D&C red No. 7
A fluid gelled cream of red-pink colour with an iridescent effect was obtained, which was smooth upon application and had good staying power.
A screening tanning fluid having the following composition was prepared:
Polydimethylsiloxane at a concentration
of 12-14% in cyclomethicone (Q2-1401)
UV screening agents Parsol MCX from BASF
FINSOLV TN (C12-C15 alkyl benzoate) from Finetax
Crosslinked silicone powder in PDMS (KSG 16
from Shin Etsu)
TiO2 + iron oxides (non-coated)
A shiny, smooth brown-coloured tanning fluid was obtained, which was easy to apply and gave a homogeneous and uniform coloration of natural appearance to the skin.
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|19||English language Derwent Abstract of FR 2 556 940 A.|
|20||English language Derwent Abstract of WO 91/12793 A1.|
|21||English language Derwent Abstract of WO 93/17660 A1.|
|22||English translation of CH 317302.|
|23||English translation of DE 1 012 730.|
|24||English translation of DE 1 018 194.|
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|27||English translation of FR 1 301 966.|
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|Patente citante||Fecha de presentación||Fecha de publicación||Solicitante||Título|
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|Clasificación de EE.UU.||424/401, 424/62, 514/944, 424/78.05, 424/59, 424/70.1, 514/844|
|Clasificación internacional||A61Q19/04, A61K8/891, A61Q1/02, A61Q17/04, A61K8/58, A61K8/29, A61K8/89, A61K8/19, A61Q1/04, A61Q1/06, A61Q1/12, A61Q5/00|
|Clasificación cooperativa||A61Q19/04, A61K8/585, A61K8/19, A61K2800/43, A61K8/89, A61Q1/02, A61Q1/06, A61K8/29, A61K2800/31, A61K8/891, A61Q17/04|
|Clasificación europea||A61Q1/02, A61Q1/06, A61K8/19, A61K8/58C, A61Q19/04, A61Q17/04, A61K8/891, A61K8/89, A61K8/29|
|19 Feb 2002||AS||Assignment|
Owner name: L OREAL, FRANCE
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MELLUL, MYRIAM;THAU, PAUL;FEHN, PAUL;AND OTHERS;REEL/FRAME:012591/0821;SIGNING DATES FROM 20020102 TO 20020111
|3 May 2002||AS||Assignment|
Owner name: L OREAL, FRANCE
Free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE 2ND ASSIGNOR S DOC DATE PREVIOUSLY RECORDED AT REEL 012591 FRAME 0821;ASSIGNORS:MELLUL, MYRIAM;THAU, PAUL;FEHN, PAUL;AND OTHERS;REEL/FRAME:012879/0049;SIGNING DATES FROM 20020107 TO 20020202
|26 Dic 2006||CC||Certificate of correction|
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