Stable topical composition comprising a solid elastomeric organopolysiloxane and spherical particles

Abstract

A stable topical composition, which can be used in the cosmetic or dermatological fields, comprising at least one liquid fatty phase in combination with a solid phase representing at least 10% of the total weight of the fatty phase and further comprising a partially or completely crosslinked elastomeric organopolysiloxane and spherical polymeric particles with a particle diameter of less than 10 μm.

We claim:  
     
         1 . A composition comprising: 
 (a) at least one liquid fatty phase associated with a solid phase comprising particles of at least one partially or completely crosslinked elastomeric organopolysiloxane, wherein said particles in the solid phase represent at least 10% of the total weight of the fatty phase and;    (b) spherical organic particles with a particle diameter of less than 10 μm.    
     
     
         2 . A composition formed from: 
 (a) at least one liquid fatty phase associated with a solid phase comprising particles of at least one partially or completely crosslinked elastomeric organopolysiloxane, wherein said particles in the solid phase represent at least 10% of the total weight of the fatty phase and;    (b) spherical organic particles with a particle diameter of less than 10 μm.    
     
     
         3 . A composition according to  claim 1 , wherein the organopolysiloxane is obtained by addition and crosslinking reaction, in the presence of a platinum type catalyst of: 
 (a) at least one organopolysiloxane having at least two lower alkenyl groups per molecule; and    (b) at least one organopolysiloxane having at least two hydrogen atoms bonded to a silicon atom per molecule.    
     
     
         4 . A composition according to  claim 1 , wherein the organopolysiloxane is chosen from: 
 i) organopolysiloxanes comprising R 2 SiO and RSiO 0.5  units and optionally R 3 SiO 0.5  and/or SiO 2  units in which the R radicals, independently of one another, denote a hydrogen, an alkyl, an aryl, or an unsaturated aliphatic group, and where the ratio by weight of the R 2 SiO units to the RSiO 1.5  units varies from 1:1 to 30:1; and    ii) organopolysiloxanes which are insoluble and which can be swollen in a silicone oil, obtained by addition of an organohydropolysiloxane (1) and of an organopolysiloxane (2) having unsaturated aliphatic groups, so that the amount of hydrogen or of unsaturated aliphatic groups in (1) and (2) respectively ranges from 1 to 20 mol % when the organopolysiloxane is non-cyclic and from 1 to 50 mol % when the organopolysiloxane is cyclic.    
     
     
         5 . A composition according to  claim 1 , wherein the spherical organic particles have a particle diameter of less than 5 μm.  
     
     
         6 . A composition according to  claim 1 , wherein the spherical orgainic particles are chosen from microbeads of methylsilsesquioxane resins, microbeads of poly(methyl methacrylate)s, spherical particles of crosslinked polydimethylsiloxanes, spherical particles of polyamide, polystyrene microspheres and mixtures thereof.  
     
     
         7 . A composition according to  claim 1 , wherein the spherical orgainic particles are chosen from polymeric organic particles.  
     
     
         8 . A composition according to  claim 1 , wherein the particles in the solid phase represent at least 20% of the total weight of the fatty phase.  
     
     
         9 . A composition according to  claim 1 , wherein the ratio by weight of the organic spherical particles to the elastomeric organopolysiloxane particles ranges from 0.25:1 to 1:1.  
     
     
         10 . A composition according to  claim 9 , wherein the ratio by weight of the spherical organic particles to the elastomeric organopolysiloxane particles ranges from 0.4:1 to 0.7:1.  
     
     
         11 . A composition according to  claim 1 , wherein the liquid fatty phase comprises at least one oil chosen from silicone oils and hydrocarbon-comprising oils.  
     
     
         12 . A composition according to  claim 1 , wherein the liquid fatty phase comprises at least one oil chosen from hydrocarbon-comprising oils of animal, plant, mineral and synthetic origin, fatty alcohols and polymethylsiloxanes.  
     
     
         13 . A composition according to  claim 1 , wherein the composition additionally comprises a solid or semi-solid fatty phase.  
     
     
         14 . A composition according to  claim 1 , wherein the composition is in the form of an anhydrous gel or of a water-in-oil or oil-in-water emulsion.  
     
     
         15 . A composition according to  claim 1 , wherein the composition comprises a continuous fatty phase.  
     
     
         16 . A composition according to  claim 1 , wherein said composition is a cosmetic or dermatological composition.  
     
     
         17 . A composition according to  claim 1 , wherein said composition is a composition for caring for, treating, making up or removing make-up from the skin, mucous membranes or keratinous fibres.  
     
     
         18 . A composition according to  claim 1 , wherein said composition additionally comprises at least one ingredient chosen from sunscreening agents, essential oils, vitamins, antiseborrhoeic agents, marine extracts, emollients, antioxidants, hydrophilic thickeners, lipophilic thickeners, preservatives, fragrances, and colouring materials.  
     
     
         19 . A composition according to  claim 1 , wherein said composition is a care or make-up base for the skin or the lips.  
     
     
         20 . A method for softening blemishes of the contours of the skin comprising the step of applying to said blemishes an effective amount of a composition according to  claim 1 .  
     
     
         21 . A method for rendering the skin matt comprising the step of applying to said skin an effective amount of a composition according to  claim 1 .  
     
     
         22 . A method for extending the hold over time of a cosmetic or dermatological composition comprising the step of including in said composition an effective amount of a composition according to  claim 1 .  
     
     
         23 . A method for stabilizing a composition comprising at least one liquid fatty phase and further comprising spherical organic particles with a particle diameter of less than 10 μm, comprising the step of associating with said at least one liquid fatty phase a solid phase containing particles of at least one partially or completely crosslinked elastomeric organopolysiloxane, said particles representing at least 10% of the total weight of the fatty phase.  
     
     
         24 . A method for stabilizing a composition formed from at least one liquid fatty phase and from spherical organic particles with a particle diameter of less than 10 μm, comprising the step of further forming said composition by associating with said at least one liquid fatty phase a solid phase containing particles of at least one partially or completely crosslinked elastomeric organopolysiloxane, said particles representing at least 10% of the total weight of the fatty phase.  
     
     
         25 . A method for rendering homogeneous a composition comprising at least one liquid fatty phase and further comprising spherical organic particles with a particle diameter of less than 10 μm, comprising the step of associating with said at least one liquid fatty phase a solid phase containing particles of at least one partially or completely crosslinked elastomeric organopolysiloxane, said particles representing at least 10% of the total weight of the fatty phase.  
     
     
         26 . A method for rendering homogeneous a composition formed from at least one liquid fatty phase and from spherical organic particles with a particle diameter of less than 10 μm, comprising the step of further forming said composition by associating with said at least one liquid fatty phase a solid phase containing particles of at least one partially or completely crosslinked elastomeric organopolysiloxane, said particles representing at least 10% of the total weight of the fatty phase.  
     
     
         27 . A method according to  claim 23 , wherein the organopolysiloxane is obtained by addition and crosslinking reaction, in the presence of a platinum type catalyst of: 
 (a) at least one organopolysiloxane having at least two lower alkenyl groups per molecule; and    (b) at least one organopolysiloxane having at least two hydrogen atoms bonded to a silicon atom per molecule.    
     
     
         28 . A method according to  claim 25 , wherein the organopolysiloxane is obtained by addition and crosslinking reaction, in the presence of a platinum type catalyst of: 
 (a) at least one organopolysiloxane having at least two lower alkenyl groups per molecule; and    (b) at least one organopolysiloxane having at least two hydrogen atoms bonded to a silicon atom per molecule.    
     
     
         29 . A method according to  claim 23 , wherein the organopolysiloxane is chosen 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 R radicals, independently of one another, denote a hydrogen, an alkyl, an aryl, or an unsaturated aliphatic group, and where the ratio by weight of the R 2 SiO units to the RSiO 1.5  units varies from 1/1 to 30/1;    ii) organopolysiloxanes which are insoluble and which can be swollen in a silicone oil, obtained by addition of an organohydropolysiloxane (1) and of an organopolysiloxane (2) having unsaturated aliphatic groups, so that the amount of hydrogen or of unsaturated aliphatic groups in (1) and (2) respectively ranges from 1 to 20 mol % when the organopolysiloxane is non-cyclic and from 1 to 50 mol % when the organopolysiloxane is cyclic.    
     
     
         30 . A method according to  claim 29 , wherein said alkyl R radical is chosen from methyl, ethyl and propyl, wherein said aryl radical is chosen from phenyl and tolyl, and wherein said unsaturated alkyl group radical is chosen from vinyl.  
     
     
         31 . A method according to  claim 25 , wherein the organopolysiloxane is chosen 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 R radicals, independently of one another, denote a hydrogen, an alkyl, an aryl, or an unsaturated aliphatic group, and where the ratio by weight of the R 2 SiO units to the RSiO 1.5  units varies from 1/1 to 30/1;    ii) organopolysiloxanes which are insoluble and which can be swollen in a silicone oil, obtained by addition of an organohydropolysiloxane (1) and of an organopolysiloxane (2) having unsaturated aliphatic groups, so that the amount of hydrogen or of unsaturated aliphatic groups in (1) and (2) respectively ranges from 1 to 20 mol % when the organopolysiloxane is non-cyclic and from 1 to 50 mol % when the organopolysiloxane is cyclic.    
     
     
         32 . A method according to  claim 31 , wherein said alkyl R radical is chosen from methyl, ethyl and propyl, wherein said aryl radical is chosen from phenyl and tolyl, and wherein said unsaturated alkyl group radical is chosen from vinyl.  
     
     
         33 . A method according to  claim 23 , wherein the ratio by weight of the spherical organic particles to the elastomeric organopolysiloxane is chosen within the range from 0.25:1 to 1:1.  
     
     
         34 . A method according to  claim 25 , wherein the ratio by weight of the spherical organic particles to the elastomeric organopolysiloxane is chosen within the range from 0.25:1 to 1:1.  
     
     
         35 . A method according to  claim 23 , wherein the ratio by weight of the spherical organic particles to the elastomeric organopolysiloxane is chosen within the range from 0.4:1 to 0.7:1.  
     
     
         36 . A method according to  claim 25 , wherein the ratio by weight of the spherical organic particles to the elastomeric organopolysiloxane is chosen within the range from 0.4:1 to 0.7:1.  
     
     
         37 . A method according to  claim 23 , wherein the liquid fatty phase comprises at least one oil selected from silicone oils and hydrocarbon-comprising oils.  
     
     
         38 . A method according to  claim 25 , wherein the liquid fatty phase comprises at least one oil selected from silicone oils and hydrocarbon-comprising oils.  
     
     
         39 . A method according to  claim 23 , wherein the composition is a care or make-up base for the skin or lips.  
     
     
         40 . A method according to  claim 25 , wherein the composition is a care or make-up base for the skin or lips.  
     
     
         41 . A method according to  claim 20 , wherein the particles in the solid phase represent at least 20% of the total weight of the fatty phase.  
     
     
         42 . A method according to  claim 21 , wherein the particles in the solid phase represent at least 20% of the total weight of the fatty phase.  
     
     
         43 . A method according to  claim 23 , wherein the particles in the solid phase represent at least 20% of the total weight of the fatty phase.  
     
     
         44 . A method according to  claim 25 , wherein the particles in the solid phase represent at least 20% of the total weight of the fatty phase.