Solid powdery cosmetic composition

Abstract

The present invention relates to a cosmetic composition, comprising:—an oil phase in an amount of 20% by weight or more, preferably from 25% to 50% by weight, and more preferably from 28% to 45% by weight, relative to the total weight of the composition, said oil phase including preferably at least one non-volatile oil, more preferably at least one non-volatile hydrocarbon-based oil and/or at least one non-volatile silicone oil, —a pulverulent phase in an amount of 40% by weight or more, preferably from 50% to 75% by weight, and more preferably from 55% to 70% by weight, relative to the total weight of the composition, —at least one hydrophobic film-forming polymer, —the cosmetic composition is obtainable, and preferably obtained, by a process comprising the steps of: —mixing said oil phase, said hydrophobic film-forming polymer(s), said pulverulent phase, and at least one additional solvent to prepare a slurry; and —shaping said slurry in a container by compression and/or aspiration to prepare the cosmetic composition.

1 . A cosmetic composition, comprising:
 an oil phase in an amount of 20% by weight or more, preferably from 25% to 50% by weight, and more preferably from 28% to 45% by weight, relative to the total weight of the composition, said oil phase including preferably at least one non-volatile oil, more preferably at least one non-volatile hydrocarbon-based oil and/or at least one non-volatile silicone oil,   a pulverulent phase in an amount of 40% by weight or more, preferably from 50% to 75% by weight, and more preferably from 55% to 70% by weight, relative to the total weight of the composition,   at least one hydrophobic film-forming polymer,   the cosmetic composition is obtainable, and preferably obtained, by a process comprising the steps of:
 mixing said oil phase, said hydrophobic film-forming polymer(s), said pulverulent phase, and at least one additional solvent to prepare a slurry; and 
 shaping said slurry in a container by compression and/or aspiration to prepare the cosmetic composition. 
   
     
     
         2 . The cosmetic composition according to  claim 1 , wherein the hydrophobic film-forming polymer is selected from the group consisting of polyamide-silicone block polymers, block ethylenic polymers, vinyl polymers comprising at least one carbosiloxane dendrimer derivative, copolymers comprising caboxylate groups and polydimethylsiloxane groups, silicone resins, lipodispersible polymer in the form of a non-aqueous dispersion of polymer particles, olefin copolymers selected from amorphous olefin copolymers and olefin copolymers with controlled and moderate crystallization, hydrocarbon-based resins having a number-average molecular weight of less than or equal to 10000 g/mol, and a mixture thereof. 
     
     
         3 . The cosmetic composition according to  claim 2 , wherein said polyamide-silicone block polymer comprises a polyamide-silicone block copolymer comprising at least one unit of formula (III) or (IV): 
       
         
           
           
               
               
           
         
       
       in which:
 6) R 4 , R 5 , R 6  and R 7 , which may be identical or different, represent a group chosen from:
 linear, branched or cyclic, saturated or unsaturated, C 1  to C 40  hydrocarbon-based groups, possibly containing in their chain one or more oxygen, sulfur and/or nitrogen atoms, and possibly being partially or totally substituted with fluorine atoms, 
 C 6 -C 10  aryl groups, optionally substituted with one or more C 1 -C 4  alkyl groups, 
 polyorganosiloxane chains possibly containing one or more oxygen, sulfur and/or nitrogen atoms, 
 
 7) the groups X, which may be identical or different, represent a linear or branched C 1 -C 30  alkylenediyl group, possibly containing in its chain one or more oxygen and/or nitrogen atoms; 
 8) Y is a saturated or unsaturated C 1  to C 50  linear or branched alkylene, arylene, cycloalkylene, alkylarylene or arylalkylene divalent group, which may comprise one or more oxygen, sulfur and/or nitrogen atoms, and/or may bear as substituent one of the following atoms or groups of atoms: fluorine, hydroxyl, C 3  to C 8  cycloalkyl, C 1  to C 40  alkyl, C 5  to C 10  aryl, phenyl optionally substituted with 1 to 3 C 1  to C 3  alkyl, C 1  to C 3  hydroxyalkyl and C 1  to C 6  aminoalkyl groups, or 
 9) Y represents a group corresponding to the formula: 
 
       
         
           
           
               
               
           
         
         in which:
 T represents a linear or branched, saturated or unsaturated, C 3 -C 24  trivalent or tetravalent hydrocarbon-based group optionally substituted with a polyorganosiloxane chain, and possibly containing one or more atoms chosen from O, N and S, or T represents a trivalent atom chosen from N, P and Al, and 
 R 8  represents a linear or branched C 1 -C 50  alkyl group or a polyorganosiloxane chain, possibly comprising one or more ester, amide, urethane, thiocarbamate, urea, thiourea and/or sulfonamide groups, which may possibly be linked to another chain of the polymer; and 
 
         10) n is an integer ranging from 2 to 500 and preferably from 2 to 200, and m is an integer ranging from 50 to 1000, preferably from 50 to 700 and better still from 50 to 200. 
       
     
     
         4 . The cosmetic composition according to  claim 2  or  3 , wherein said silicone resin is selected from the group consisting of polymethylsilsesquioxanes and siloxysilicate resins, in particular trimethyl siloxysilicate resins. 
     
     
         5 . The cosmetic composition according to any one of  claims 2  to  4 , wherein said block ethylenic polymer is a block ethylenic copolymer comprising at least a first block with a glass transition temperature (Tg) of greater than or equal to 40° C. and being totally or partly derived from one or more first monomers, which are such that the homopolymer prepared from these monomers has a glass transition temperature of greater than or equal to 40° C., and at least a second block with a glass transition temperature of less than or equal to 20° C. and being derived totally or partly from one or more second monomers, which are such that the homopolymer prepared from these monomers has a glass transition temperature of less than or equal to 20° C., the said first block and the said second block being connected together via a statistical intermediate segment comprising at least one of the said first constituent monomers of the first block and at least one of the said second constituent monomers of the second block, and the said block copolymer having a polydispersity index I of greater than 2. 
     
     
         6 . The cosmetic composition according to  claim 5 , wherein said block ethylenic copolymer is such that the said first block is obtained from at least one acrylate monomer of formula CH 2 ═CH—COOR 2  in which R 2  represents a C 4  to C 12  cycloalkyl group and from at least one methacrylate monomer of formula CH 2 ═C(CH 3 )—COOR′ 2  in which R′ 2  represents a C 4  to C 12  cycloalkyl group, and the said second block being obtained from at least a second monomer with a glass transition temperature of less than or equal to 20° C. and from an additional monomer, preferably acrylic acid. 
     
     
         7 . The cosmetic composition according to any one of  claims 2  to  6 , wherein said vinyl polymer comprising at least one carbosiloxane dendrimer derivative comprises at least one carbosiloxane dendrimer-based unit and is the product of polymerization of
 (A) 0 to 99.9 parts by weight of a vinyl monomer; and 
 (B) 100 to 0.1 part by weight of a carbosiloxane dendrimer containing a radical-polymerizable organic group, represented by the formula: 
 
       
         
           
           
               
               
           
         
         
           in which Y represents a radical-polymerizable organic group, R 1  represents an aryl group or an alkyl group containing from 1 to 10 carbon atoms, and X 1  represents a silylalkyl group which, when i=1, is represented by the formula: 
         
       
       
         
           
           
               
               
           
         
         
           in which R 1  is the same as defined above, R 2  represents an alkylene group containing from 2 to 10 carbon atoms, R 3  represents an alkyl group containing from 1 to 10 carbon atoms, X i−1  represents a hydrogen atom, an alkyl group containing from 1 to 10 carbon atoms, an aryl group, or the silylalkyl group defined above with i=i+1; i is an integer from 1 to 10 that represents the generation of the said silylalkyl group, and a i  is an integer from 0 to 3; in which the said radical-polymerizable organic group Y contained in components (B) is chosen from the group formed by an organic group that contains a methacrylic group or an acrylic group and that is represented by the formulae: 
         
       
       
         
           
           
               
               
           
         
         
           in which R 4  represents a hydrogen atom or an alkyl group, R 5  represents an alkylene group containing from 1 to 10 carbon atoms; and 
           an organic group containing a styryl group and that is represented by the formula: 
         
       
       
         
           
           
               
               
           
         
         
           in which R 6  represents a hydrogen atom or an alkyl group, R 7  represents an alkyl group containing from 1 to 10 carbon atoms, R 8  represents an alkylene group containing from 1 to 10 carbon atoms, b is an integer from 0 to 4, and c is 0 or 1, such that if c is 0, —(R) c — represents a bond. 
         
       
     
     
         8 . The cosmetic composition according to  claim 7 , wherein said vinyl polymer comprising at least one carbosiloxane dendrimer derivative is an acrylate/polytrimethyl siloxymethacrylate copolymer. 
     
     
         9 . The cosmetic composition according to any one of  claims 2  to  8 , wherein said copolymer comprising carboxylate groups and polydimethylsiloxane groups is selected from the group consisting of copolymers of acrylic acid and of stearyl acrylate containing polydimethylsiloxane grafts, copolymers of stearyl methacrylate containing polydimethylsiloxane grafts, copolymers of acrylic acid and of stearyl methacrylate containing polydimethylsiloxane grafts, copolymers of methyl methacrylate, butyl methacrylate, 2-ethylhexylacrylate and stearyl methacrylate containing polydimethylsiloxane grafts. 
     
     
         10 . The cosmetic composition according to any one of  claims 2  to  9 , wherein said amorphous olefin copolymer comprises at least one styrene block. 
     
     
         11 . The cosmetic composition according to any one of  claims 2  to  10 , wherein said amorphous olefin copolymer is selected from the group consisting of a styrene-ethylene/butylene-styrene triblock copolymer, a styrene-ethylene/butylene diblock copolymer, a styrene-ethylene/isoprene-styrene triblock copolymer, a styrene/ethylene-propylene diblock copolymer, a styrene-ethylene/isoprene diblock copolymer, or a mixture thereof. 
     
     
         12 . The cosmetic composition according to any one of  claims 2  to  11 , wherein said hydrocarbon-based resin having a number-average molecular weight of less than or equal to 10 000 g/mol is selected from indene hydrocarbon-based resins. 
     
     
         13 . The cosmetic composition according to any one of  claims 1  to  12 , wherein said hydrophobic film-forming polymer(s) is (are) present in an amount of 0.1% by weight or more, preferably from 0.1% to 10% by weight, and more preferably from 0.5% to 8% by weight relative to the total weight of the composition. 
     
     
         14 . The cosmetic composition according to any one of  claims 1  to  13 , wherein said oil phase comprises at least one non-volatile silicone oil selected from phenyl silicone oils and non-phenyl linear silicone oils, preferably in an amount ranging from 1% to 20% by weight, preferably from 2% to 15% by weight, and more preferably from 4% to 13% by weight, relative to the total weight of the composition. 
     
     
         15 . The cosmetic composition according to any one of  claims 1  to  14 , wherein said oil phase comprises at least one non-volatile hydrocarbon-based oil selected from fatty esters represented by the formula RCOOR′ wherein R denotes a C 1-29  fatty acid residue, and R′ denotes C 2-30  hydrocarbon group, preferably in an amount ranging from 10% to 40% by weight, preferably from 12% to 35% by weight, and more preferably from 15% to 30% by weight, relative to the total weight of the composition. 
     
     
         16 . The cosmetic composition according to any one of  claims 1  to  15 , wherein said pulverulent phase comprises at least one non-spherical filler preferably selected from the group consisting of talc, mica, silica, kaolin, sericite, calcinated talc, calcinated mica, calcinated sericite, synthetic mica, lauroyl lysine, metal soap, bismuth oxychloride, barium sulfate, boron nitride, calcium carbonate, magnesium carbonate, magnesium hydrogen carbonate, hydroxyapatite, and a mixture thereof. 
     
     
         17 . The cosmetic composition according to any one of  claims 1  to  16 , wherein said pulverulent phase comprises at least one pigment, preferably at least one pearlescent pigment. 
     
     
         18 . The cosmetic composition according to any one of  claims 1  to  17 , wherein the amount of the oil phase and the amount of the pulverulent phase are such that the weight ratio of the oil phase: the pulverulent phase is ranging from 20:80 to 45:55, preferably 25:75 to 40:60, and more preferably 30:70 to 38:62. 
     
     
         19 . The cosmetic composition according to any one of  claims 1  to  18 , wherein the amount of the oil phase and the amount of the hydrophobic film-forming polymer(s) are such that the weight ratio of the oil phase: the hydrophobic film-forming polymer(s) is ranging from 98:2 to 70:30, preferably 95:5 to 80:20, and more preferably 91:9 to 75:25. 
     
     
         20 . The cosmetic composition according to any one of  claims 1  to  19 , wherein the mixing step includes mixing said oil phase, said film-forming polymer(s) and said pulverulent phase, to form a mixture, and further mixing said at least one additional solvent with the mixture. 
     
     
         21 . The cosmetic composition according to any one of  claims 1  to  19 , wherein the mixing step includes mixing said oil phase, said film-forming polymer(s) and said at least one additional solvent to form a mixture, and further mixing said pulverulent phase with said mixture. 
     
     
         22 . The cosmetic composition according to any one of  claims 1  to  21 , wherein the additional solvent comprises a volatile solvent, preferably a volatile organic solvent. 
     
     
         23 . The cosmetic composition according to any one of  claims 1  to  22 , wherein the process further comprises a step of drying the cosmetic composition, after the step of shaping. 
     
     
         24 . A cosmetic process including a step of applying to skin, preferably face or eyelid, a cosmetic composition according to any one of  claims 1  to  23 .