Mixture of self-invertible inverse latex and a powder for cosmetic or pharmaceutical use; use as texturizer

Abstract

A texturizing composition and method utilized for foundations, makeup powders, mascaras, lipsticks, emulsions, lotions, gels, sprayable formulations, and solution impregnated on fabrics, paper, towelettes or complexion corrector papers comprising at least one self-invertible inverse latex, and powder.

1 . A texturizing composition that comprises:
 a) from about 1% to about 90% of at least one self-invertible inverse latex by weight; and   b) from about 10% to about 99% of at least one powder by weight.   
     
     
         2 . The composition according to  claim 1 , wherein said composition comprises:
 a) from about 5% to about 80% of said self-invertible inverse latex; and   b) from about 20% to about 95% of said powder.   
     
     
         3 . The composition according to  claim 2 , wherein said composition is essentially free of fillers. 
     
     
         4 . The composition according to  claim 1 , wherein said composition is in powder form. 
     
     
         5 . The composition according to  claim 1 , wherein said self-invertible latex is in liquid form. 
     
     
         6 . The composition according to  claim 1 , wherein said self-invertible latex comprises at least one component selected from the group consisting of:
 a) an oil phase;   b) an aqueous phase;   c) at least one water-in-oil (W/O) phase;   d) an emulsifier; and   e) at least one oil-in-water (O/W) emulsifier.   
     
     
         7 . The composition according to  claim 6 , wherein said oil phase is in the range of from about 15% to about 40% by weight of the total latex. 
     
     
         8 . The composition according to  claim 7 , wherein said oil phase is in the range of from about 20% to about 25%. 
     
     
         9 . The composition according to  claim 6 , wherein said oil phase comprises saturated hydrocarbons. 
     
     
         10 . The composition according to  claim 6 , wherein said emulsifier is in the range of from about 2.5% to about 15% by weight of the total latex. 
     
     
         11 . The composition according to  claim 10 , wherein said emulsifier is in the range of from about 4% to about 9%. 
     
     
         12 . The composition according to  claim 6 , wherein said oil-in-water (O/W) emulsifier comprises a branched or cross-linked polyelectrolyte in the range of from about 20% to about 70% by weight of the total latex. 
     
     
         13 . The composition according to  claim 12 , wherein said polyelectrolyte is in the range of from about 25% to about 50%. 
     
     
         14 . The composition according to  claim 1 , wherein said self-invertible inverse latex comprises at least one inverse emulsion selected from the group consisting of:
 a) copolymer of acrylic acid partly in sodium salt form and acrylamide, cross linked with methylenebis (acrylamide);   b) copolymer of 2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulphonic acid partly in sodium salt form and acrylamide, cross-linked with methylenebis (acrylamide);   c) copolymer of 2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulphonic acid partly in sodium salt form and acrylic acid partly in sodium salt form, cross-linked with methylenebis (acrylamide);   d) copolymer of 2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulphonic acid partly in sodium salt form and 2-hydroxyethyl acrylate, cross-linked with methylenebis (acrylamide);   e) homopolymer of 2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulphonic acid partly in sodium salt form, cross-linked with methylenebis (acrylamide);   f) homopolymer of acrylic acid partly in ammonium salt or monoethanolamine salt form, cross-linked with sodium diallyloxyacetate; and   g) homopolymer of acrylic acid partly in ammonium or monoethanolamine salt form, cross-linked with triallylamine.   
     
     
         15 . The composition according to  claim 1 , wherein said powder is in spherical form. 
     
     
         16 . The composition according to  claim 1 , wherein said powder is homogenous. 
     
     
         17 . The composition according to  claim 1 , wherein said powder comprises at least one component selected from the group consisting of:
 a) synthetic materials;   b) natural materials;   c) organic materials;   d) inorganic materials;   e) hydrophilic materials; and   f) hydrophobic materials.   
     
     
         18 . The composition according to  claim 1 , wherein said powder contains a mean diameter in the range of from about 0.01 μm to about 250 μm. 
     
     
         19 . The composition according to  claim 18 , wherein said diameter is in the range of from about μum to about 50 μm. 
     
     
         20 . The composition according to  claim 1 , wherein said powder comprises porous polylmethyl methacrylate microspheres. 
     
     
         21 . The composition according to  claim 20 , wherein said porous polymethyl methacrylate microsphere has a specific surface area greater than or equal to about 0.5 m 2  per gram. 
     
     
         22 . The composition according to  claim 2 , wherein said powder comprises at least about 50% by weight of the total composition. 
     
     
         23 . A method for improving the texture of a cosmetic or pharmaceutical formulation comprising the steps of:
 i) adding an effective amount of at least one self-invertible inverse latex to said formulation; and   ii) adding an amount of at least one powder,   wherein step i) and step ii) are simultaneous so as to add about 1% to about 90% self-invertible inverse latex and about 10% to about 99% powder.   
     
     
         24 . The method according to  claim 23 , wherein said method further comprises:
 iii) adding at least one excipient.   
     
     
         25 . The method according to  claim 23 , wherein said cosmetic or pharmaceutical formulation is a solid formulation. 
     
     
         26 . The method according to  claim 25 , wherein said formulation is selected from the group consisting of:
 a) foundations;   b) makeup powders;   c) mascaras; and   d) lipsticks.   
     
     
         27 . The method according to  claim 23 , wherein said formulation is selected from the group consisting of:
 a) sprayable formulations; and   b) solutions   wherein said formulation is impregnated on complexion corrector papers or fabrics, paper; or towels utilized in the cosmetic, pharmacy, or hygiene industry.   
     
     
         28 . The method according to  claim 23 , wherein said cosmetic or pharmaceutical formulation is utilized to improve the texture of liquids. 
     
     
         29 . The method according to  claim 28 , wherein said method is utilized to improve at least one component selected from the group consisting of:
 a) emulsions;   b) lotions; and   c) gels.