Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Cosmetic – antiperspirant – dentifrice
Reexamination Certificate
1997-12-19
2001-01-23
Page, Thurman K. (Department: 1615)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Cosmetic, antiperspirant, dentifrice
C424S061000
Reexamination Certificate
active
06177091
ABSTRACT:
The technology involved in this application is related to that disclosed in the following co-pending U.S. applications, filed on even date herewith:
(1) Title: Composition Comprising an Organopolysiloxane Gel
Inventor: Isabelle Bara
Attorney Docket No.: 05725.0260
(2) Title: Transfer-Free Make-up or Care Composition Containing an Organopolysiloxane and a Fatty Phase
Inventors: Isabelle BARA and Fry{acute over (e)}d{acute over (e)}rich AUGUSTA
Attorney Docket No.: 05725.0267
The specifications of these related applications are hereby specifically incorporated by reference
The present invention relates to a make-up and/or care composition for human skin and/or lips, and in particular to a lip coloring composition or a foundation, in the form of a stick, a cupel or a cream containing an organopolysiloxane.
The known lipstick and foundation compositions generally comprise fatty substances such as oils, pasty compounds and waxes, as well as a particulate phase generally composed of fillers and pigments.
In standard lipsticks, the oils impart a large part of the properties of these lipsticks, such as the ease of application, the slippery properties and the sheen. In addition, most of these oils, and in particular the plant oils, give the lipsticks treating properties. This is likewise the case for foundations.
Unfortunately, when they are applied to the skin or the lips, these make-up compositions, and especially the pigments in these compositions, tend to migrate, that is to say to travel inside the wrinkles and fine lines in the skin around the lips and the eyes, giving rise to an aesthetically unpleasant effect. The appearance of these traces tends to put certain consumers off from using this type of make-up.
A subject of the present invention is a make-up or care composition which makes it possible to overcome these drawbacks and makes it possible, in particular, to obtain a film which does not migrate and which has cosmetic properties such as, in particular, slippery properties and properties of not causing tautness and not drying the lips or the skin.
The invention applies not only to make-up products for the lips but also to care and/or treating products for the lips, as well as to make-up, care and/or treating products for the skin.
More specifically, the subject of the invention is a non-migrating make-up or care composition containing at least one solid, at least partially crosslinked, elastomeric organopolysiloxane as gelling agent, combined with a fatty phase containing at least one oil and at least one wax, and a particulate filler.
The term “elastomeric” is understood to refer to a supple, deformable material having viscoelastic properties and in particular the consistency of a sponge or of a supple sphere.
The elastomeric organopolysiloxanes of the composition of the invention have noteworthy oil-gelling power. They do not dry the skin and afford good cosmetic properties. These novel elastomers lead to compositions which are comfortable when applied, soft and non-sticky to touch. This softness is due, on the one hand, to the texture of the organopolysiloxanes and, on the other hand, to their properties, which are comparable to those of microsponges trapping volatile oils. In addition, by virtue of the trapping of the oils in the organopolysiloxane, the compositions of the invention no longer migrate in the wrinkles and fine lines in the skin, even when they contain treating oils.
The compositions of the invention may be in the form of a paste, a solid or a cream. They may be an oil-in-water or water-in-oil emulsion, or a solid or supple anhydrous gel.
The elastomeric organopolysiloxanes in accordance with the invention are partially or totally crosslinked and of three-dimensional structure. When included in a fatty phase, they become converted, depending on the fatty phase content used, from a product of spongy appearance when they are used in the presence of low fatty phase contents, into a homogeneous gel in the presence of larger amounts of fatty phase. Gelling of the fatty phase by these elastomers may be total or partial.
The elastomers of the invention are generally conveyed in the form of a gel including an elastomeric organopolysiloxane of three-dimensional structure, and further including at least one hydrocarbon oil and/or a silicone oil.
The elastomeric organopolysiloxanes according to the invention may be selected from the crosslinked polymers described in European patent application EP-A-0,295,886, the disclosure of which is specifically incorporated by reference herein. According to that application, they are obtained by addition reaction and crosslinking, in the presence of a platinum-type catalyst, of at least:
(a) an organopolysiloxane having at least two C
2
-C
6
lower alkenyl groups per molecule; and
(b) an organopolysiloxane having at least two hydrogen atoms linked to a silicon atom per molecule.
The elastomeric organopolysiloxanes according to the invention may also be selected from those described in U.S. Pat. No. 5,266,321, the disclosure of which is specifically incorporated by reference herein. According to that patent, they are selected in particular from:
i) organopolysiloxanes comprising R
2
SiO and RSiO
1.5
units and optionally R
3
SiO
0.5
and/or SiO
2
units in which the radicals R, independently of each other, represent a hydrogen, an alkyl such as methyl, ethyl or propyl, an aryl such as phenyl or tolyl, an unsaturated aliphatic group such as vinyl, the weight ratio of the units R
2
SiO to the units RSiO
1.5
ranging from 1:1 to 30:1;
ii) organopolysiloxanes which are insoluble and swellable in silicone oil, obtained by addition of an organohydrogenopolysiloxane (1) and of an organopolysiloxane (2) having unsaturated aliphatic groups such that the amount of hydrogen or of unsaturated aliphatic groups in (1) and (2) respectively ranging from 1 to 20 mol % when the organopolysiloxane is non-cyclic and from 1 to 50 mol % when the organopolysiloxane is cyclic.
The organopolysiloxanes of the composition of the invention are, for example, those marketed under the names KSG6 from Shin-Etsu, TREFIL E-505C or TREFIL E-506C from Dow-Coming, GRANSIL from Grant Industries (SR-CYC, SR DMFI10, SR-DC556) or those marketed in the form of preconstituted gels (KSG15, KSG17, KSG16, KSG18 from Shin-Etsu, GRANSIL SR 5CYC gel, GRANSIL SR DMF 10 gel, GRANSIL SR DC556 gel, SF 1204 and JK 113 from General Electric). A mixture of these commercial products may also be used.
The organopolysiloxane is preferably present in the organopolysiloxane/fatty phase mixture in the form of a more or less homogeneous gel at a concentration ranging from 0.3 to 40% of the total weight of the composition. Preferably, the elastomer represents, as active material, from 0.1 to 20% in the composition and more preferably from 0.3 to 15%.
The fatty phase may be of any nature; it contains oils (products which are fluid at room temperature) which may be silicone, fluoro, fluorosilicone or hydrocarbon oils which are optionally partially siliconated. The best gelling is achieved with silicone oils or partially siliconated oils, apolar oils and sparingly polar oils and a few polar oils which do not harm the stability of the system. These oils are determined in particular as a function of their solubility parameters, defined in the Hansen space.
In particular, the composition of the invention comprises non-volatile oils used conventionally in the field of application envisaged, and waxes.
As non-volatile oils which may be used in the invention, mention may be made, in particular, of:
hydrocarbon oils of animal origin such as perhydrosqualene;
plant hydrocarbon oils such as liquid triglycerides of fatty acids, for example sunflower oil, corn oil, soybean oil, marrow oil, grapeseed oil, sesame oil, hazelnut oil, apricot oil, macadamia oil, castor oil, avocado oil, caprylic/capric acid triglycerides such as those sold by the company Stearineries Dubois or those sold under the names MIGLYOL 810, 812 and 818 by the company Dynamit Nobel;
oils of formula R
9
COOR
10
in which R
9
represents
Auguste Fr{acute over (e)}d{acute over (e)}ric
Bara Isabelle
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
Howard S.
L'Oreal
Page Thurman K.
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