Pore hiding cosmetic composition comprising a plate type filler, a silicon elastomer and an oil absorbing filler

Abstract

The invention relates to a cosmetic composition, in particular in the form of a liquid cosmetic composition, comprising in a physiological medium (i) at least a plate type filler with refractive index>1.6 and having a particle size between 1 μm and 20 um, preferably between 1 μm and 15 μm, (ii) at least a silicon elastomer, preferably a non-emulsifying silicon elastomer, and (iii) at least a filler having an oil absorption capacity greater than or equal to 1 ml/g. The composition is preferably used as a skin care or make-up base or primer intended to decrease the visibility of skin imperfections, in particular the pores and make the pore hiding effect long lasting.

1 .- 20 . (canceled) 
     
     
         21 . A cosmetic composition comprising, in a physiologically acceptable medium:
 (i) at least one plate type filler having a refractive index greater than about 1.6 and having a particle size ranging from about 1 μm to about 20 μm,   (ii) at least one silicon elastomer, and   (iii) at least one filler having an oil absorption capacity greater than or equal to about 1 mL/g.   
     
     
         22 . The cosmetic composition according to  claim 21 , further comprising at least one dyestuff in an amount ranging up to about 5% by weight, relative to the total weight of the composition. 
     
     
         23 . The cosmetic composition according to  claim 21 , wherein the at least one plate type filler is chosen from boron nitride; barium sulfate; bismuth oxychloride; alumina; composite powders based on titanium oxide and a substrate chosen from talc, mica, barium sulfate, boron nitride, bismuth oxychloride, alumina, or mixtures thereof; or mixtures thereof. 
     
     
         24 . The cosmetic composition according to  claim 21 , wherein the at least one plate type filler is boron nitride. 
     
     
         25 . The cosmetic composition according to  claim 21 , wherein the total amount of plate type filler present in the composition ranges from about 0.5% to about 20% by weight, relative to the total weight of the composition. 
     
     
         26 . The cosmetic composition according to  claim 21 , wherein the at least one silicon elastomer is a non-emulsifying silicon elastomer in the form of a gel or a powder. 
     
     
         27 . The cosmetic composition according to  claim 21 , wherein the total amount of silicon elastomer present in the composition ranges from about 1% to about 30% by weight, relative to the total weight of the composition. 
     
     
         28 . The cosmetic composition according to  claim 21 , wherein the at least one filler having oil absorption capacity greater than or equal to about 1 mL/g is chosen from silicas; silica silylates, hydrophobic silica aerogel particles; polyamide powders, Nylon-6 powders; powders of acrylic polymers, polymethyl methacrylate, polymethyl methacrylate/ethylene glycol dimethacrylate, polyallyl methacrylate/ethylene glycol dimethacrylate, or ethylene glycol dimethacrylate/lauryl methacrylate copolymer; perlites; magnesium carbonate; or mixtures thereof. 
     
     
         29 . The cosmetic composition according to  claim 21 , wherein the at least one filler having oil absorption capacity greater than or equal to about 1 mL/g is chosen from hydrophobic silica aerogel particles having a specific surface area per unit of mass (S M ) ranging from about 500 m 2 /g to about 1500 m 2 /g, and a size, expressed as the mean volume diameter (D[0.5]), ranging from about 1 μm to about 1500 μm. 
     
     
         30 . The cosmetic composition according to  claim 21 , wherein the at least one filler having oil absorption capacity greater than or equal to about 1 mL/g is chosen from hydrophobic silica aerogel particles having an oil-absorbing capacity, measured at the wet point, ranging from about 5 mL/g to about 18 mL/g. 
     
     
         31 . The cosmetic composition according to  claim 21 , wherein the at least one filler having oil absorption capacity greater than or equal to about 1 mL/g is chosen from hydrophobic silica aerogel particles having a tamped density ρ ranging from about 0.04 g/cm 3  to about 0.10 g/cm 3 . 
     
     
         32 . The cosmetic composition according to  claim 21 , wherein the at least one filler having oil absorption capacity greater than or equal to about 1 mL/g is chosen from hydrophobic silica aerogel particles that are surface modified by at least one trimethylsilyl group. 
     
     
         33 . The cosmetic composition according to  claim 21 , wherein the total amount of filler having oil absorption capacity greater than or equal to about 1 mL/g present in the composition ranges about 0.1% to about 20% by weight, relative to the total weight of the composition. 
     
     
         34 . The cosmetic composition according to  claim 21 , wherein the at least one filler having oil absorption capacity greater than or equal to about 1 mL/g comprises hydrophobic silica aerogel particles present in an amount ranging from about 0.1% to about 5.0% by weight, relative to the total weight of the composition. 
     
     
         35 . The cosmetic composition according to  claim 21 , wherein the cosmetic composition is an emulsion. 
     
     
         36 . The cosmetic composition according to  claim 21 , further comprising at least one additional component chosen from water, hydrophilic solvents, lipophilic solvents, oils, or mixtures thereof. 
     
     
         37 . The cosmetic composition according to  claim 21 , wherein the cosmetic composition is in the form of a base, primer, skin care base, skin care primer, make-up base, or make-up primer. 
     
     
         38 . A cosmetic process comprising a step of applying onto the skin at least one layer of a cosmetic composition comprising, in a physiologically acceptable medium:
 (i) at least one plate type filler having a refractive index greater than about 1.6 and having a particle size ranging from about 1 μm to about 20 μm,   (ii) at least one silicon elastomer, and   (iii) at least one filler having an oil absorption capacity greater than or equal to about 1 mL/g.   
     
     
         39 . The cosmetic process according to  claim 38 , wherein the cosmetic composition is applied as a base or primer under a skin care product or a make-up product. 
     
     
         40 . A cosmetic process for decreasing the visibility of skin imperfections, the process comprising a step of applying onto the skin at least one layer of a cosmetic composition comprising, in a physiologically acceptable medium:
 (i) at least one plate type filler having a refractive index greater than about 1.6 and having a particle size ranging from about 1 μm to about 20 μm,   (ii) at least one silicon elastomer, and   (iii) at least one filler having an oil absorption capacity greater than or equal to about 1 mL/g.