Composition comprising particles of a hydrophilic polyorganosiloxane suspended in an aqueous phase

Abstract

The invention relates to a composition for cosmetic or topical application comprising particles of an at least partially crosslinked elastomeric solid polyorganosiloxane suspended in an aqueous phase, wherein the composition is substantially water-resistant. This composition is more especially a make-up composition or a care composition for the lips or a foundation composition for making up the human face or body. This composition is soft and feels fresh when applied, it spreads easily, it is non-sticky and it does not dry out the skin or the lips. It is entirely suitable for greasy skin, on account of its high matte-effect power.

What is claimed is:  
     
         1 . A composition for cosmetic or topical application, said composition comprising particles of an at least partially crosslinked elastomeric solid polyorganosiloxane suspended in an aqueous phase.  
     
     
         2 . The composition according to  claim 1 , wherein said composition is water-resistant.  
     
     
         3 . The composition according to  claim 1 , wherein said composition is a make-up or a care composition for keratin substances.  
     
     
         4 . The composition according to  claim 1 , wherein said elastomeric polyorganosiloxane is obtained by an addition and crosslinking reaction, in the presence of a catalyst, of: 
 at least one polyorganosiloxane (i) with α- and ω-positions in the silicone chain, having at least two vinyl groups in the α- and the ω-positions of the silicone chain per molecule; and    at least one organosiloxane (ii) containing at least one hydrogen atom linked to a silicon atom per molecule.    
     
     
         5 . The composition according to  claim 4 , wherein the polyorganosiloxane (i) is a polydimethylsiloxane.  
     
     
         6 . The composition according to  claim 5 , wherein the polyorganosiloxane is an α,ω-dimethylvinylpolydimethylsiloxane.  
     
     
         7 . The composition according to  claim 4 , wherein a suspension of polyorganosiloxane particles is obtained according to the following: 
 (a) mixing a polyorganosiloxane (i) and an organosiloxane (ii);    (b) adding an aqueous phase comprising an emulsifier to the mixture obtained in (a);    (c) emulsifying the aqueous phase and the mixture to obtain an emulsion;    (d) adding water to the emulsion of (c); and    (e) polymerizing the polyorganosiloxane (i) and the organosiloxane (ii) as an emulsion in the presence of a platinum catalyst,    wherein the temperature of the water added in (d) is above room temperature.    
     
     
         8 . The composition according to  claim 7 , wherein said emulsion of (c) is obtained in the presence of a nonionic emulsifier.  
     
     
         9 . The composition according to  claim 1 , wherein said particles have a size ranging from 0.1 to 500 μm.  
     
     
         10 . The composition according to  claim 9 , wherein said particles have a size ranging from 3 to 200 μm.  
     
     
         11 . The composition according to  claim 1 , wherein said particles have a hardness of less than or equal to 80.  
     
     
         12 . The composition according to  claim 11 , wherein said particles have a hardness of less than or equal to 65.  
     
     
         13 . The composition according to  claim 1 , further comprising a fatty phase.  
     
     
         14 . The composition according to  claim 13 , wherein said fatty phase contains at least one fatty substance chosen from volatile and non-volatile oils, waxes, gums and pasty fatty substances of animal, plant, mineral or synthetic origin, and mixtures thereof.  
     
     
         15 . The composition according to  claim 1 , further comprising an aqueous-phase gelling agent.  
     
     
         16 . The composition according to  claim 15 , wherein said aqueous-phase gelling agent is chosen from xanthan gum, clays, associative polyurethanes, cellulosic thickeners and at least partially neutralized crosslinked polyacrylic acids, and mixtures thereof.  
     
     
         17 . The composition according to  claim 1 , further comprising a particulate phase present in an amount of from greater than 0.1 to 60% relative to the total weight of the composition.  
     
     
         18 . The composition according to  claim 17 , wherein said particulate phase is present in an amount of from 5 to 35% relative to the total weight of the composition.  
     
     
         19 . The composition according to  claim 1 , further comprising at least one cosmetic or dermatological active agent.  
     
     
         20 . A composition according to  claim 1 , wherein said composition is in the form of a foundation, a face powder, an eye-shadow composition, a concealer product, a lip composition, an eye-liner, a mascara, a nail varnish, a care base or a fixing base for the lips, a dermatological product or a care product for the skin or keratin fibres, an antisun or artificial tanning composition, a cleansing product for the skin or keratin fibres, a deodorant product or a fragrancing product.  
     
     
         21 . The composition according to  claim 1 , further comprising at least one dyestuff.  
     
     
         22 . The composition according to  claim 1 , further comprising at least one ingredient chosen from preserving agents, antioxidants, fragrances, fatty-phase gelling agents and surfactants, and mixtures thereof.  
     
     
         23 . A method for increasing the water-resistance of a composition, wherein said method comprises introducing into said composition particles of an at least partially crosslinked elastomeric polyorganosiloxane suspended in an aqueous phase.  
     
     
         24 . The method according to  claim 23 , wherein said elastomeric polyorganosiloxane is obtained by an addition and crosslinking reaction, in the presence of a catalyst, of: 
 at least one polyorganosiloxane (i) with α- and ω-positions in the silicone chain, having at least two vinyl groups in the α- and the ω-positions of the silicone chain per molecule; and    at least one organosiloxane (ii) containing at least one hydrogen atom linked to a silicon atom per molecule.    
     
     
         25 . The method according to  claim 24 , wherein the polyorganosiloxane (i) is a polydimethylsiloxane.  
     
     
         26 . The method according to  claim 25 , wherein the polyorganosiloxane is an α,ω-dimethylvinylpolydimethylsiloxane.  
     
     
         27 . The method according to  claim 24 , wherein a suspension of polyorganosiloxane particles is obtained according to the following: 
 (a) mixing a polyorganosiloxane (i) and an organosiloxane (ii);    (b) adding an aqueous phase comprising an emulsifier to the mixture obtained in (a);    (c) emulsifying the aqueous phase and the mixture to obtain an emulsion;    (d) adding water to the emulsion of (c); and    (e) polymerizing the polyorganosiloxane (i) and the organosiloxane (ii) as an emulsion in the presence of a platinum catalyst,    wherein the temperature of the water added in (d) is above room temperature.    
     
     
         28 . The method according to  claim 27 , wherein said emulsion of (c) is obtained in the presence of a nonionic emulsifier.  
     
     
         29 . The method according to  claim 23 , wherein said particles have a size ranging from 0.1 to 500 μm.  
     
     
         30 . The method according to  claim 29 , wherein said particles have a size ranging from 3 to 200 μm.