Solubilizer for cosmetic preparations

Abstract

The present invention relates to a mixture comprising (i) one or a plurality of 1,2-alkane diols with 5 through 8 carbon atoms and (ii) one or a plurality of ammonium-, sodium- or potassium-R alk -sarcosinates, wherein the structural element R alk represents alkanoyl, alkenoyl or alkadienoyl with 12 through 22 carbon atoms, and optionally (iii) one or a plurality of sodium- or potassium-C10-C16-alkyl-sulfoacetates. The invention further relates to particular compositions and cosmetic preparations, in particular body care products, containing said mixture or composition and methods of production thereof. The present invention further relates to the use of said mixture as solubilizer and for increasing the transparency or decreasing the turbidity of a preparation containing one or a plurality of further organic substances.

1 . A method of:
 solubilizing one or more organic substances;   increasing the solubility of one or more organic substances;   decreasing the turbidity of a preparation comprising one or more organic substances;   and/or   increasing the transparency of a preparation comprising one or more organic substances,   comprising mixing (a) one or more 1,2-alkane diols comprising 5-8 carbon atoms in and (b) one or more compounds selected from the group consisting of ammonium-, sodium- or potassium-R alk -sarcosinates, wherein the structural element R alk  represents alkanoyl, alkenoyl or alkadienoyl with 12 through 22 carbon atoms, sodium- or potassium-C10-C16-alkyl-sulfoacetates, and mixtures thereof, with the one or more organic substances.   
     
     
         2 . The method as claimed in  claim 1 , wherein the one or more organic substances have a log K OW  value in a range of 1 to 12 and/or are suitable for use in cosmetic preparations. 
     
     
         3 . A mixture comprising:
 (i) one or more 1,2-alkane diols comprising 5-8 carbon atoms,   (ii) one or more ammonium-, sodium- or potassium-R alk -sarcosinates, wherein R alk  is alkanoyl, alkenoyl or alkadienoyl comprising 12-22 carbon atoms, and   (iii) optionally one or more sodium- or potassium-C10-C16-alkyl-sulfoacetates,   with the proviso that the mixture is not a creme for the lips comprising:   
       
         
           
                 
                 
                 
               
                     
                 
                   water 
                   60.05 
                   wt.-% 
                 
                   methylparabene 
                   0.2 
                   wt.-% 
                 
                   Sorbitan tristearate (Span 65) 
                   1 
                   wt.-% 
                 
                   Cetyl alcohol 
                   4.7 
                   wt.-% 
                 
                   Glycerol mono/di/tri stearopalmitate 
                   3.9 
                   wt.-% 
                 
                   PEG stearate, 40 EO (Myrj 52P) 
                   2.22 
                   wt.-% 
                 
                   Potassium hexadecyl phosphate (Amphysol K) 
                   0.83 
                   wt.-% 
                 
                   Isoparaffin oil 
                   4.7 
                   wt.-% 
                 
                   Di isostearyl malate 
                   7 
                   wt.-% 
                 
                   PDMS 5 cst 
                   5 
                   wt.-% 
                 
                   propylparabene 
                   0.1 
                   wt.-% 
                 
                   Decandiol and PEG-Ethers 
                   10 
                   wt.-% 
                 
                   perfum 
                   0.3 
                   wt.-% 
                 
                   methylparabene 
                   0.23 
                   wt.-% 
                 
                   glycerin 
                   7.50 
                   wt.-% 
                 
                   1,2 pentanediol 
                   3.00 
                   wt.-% 
                 
                   sodium palmitoyl sarcosinate 
                   0.50 
                   wt.-% 
                 
                   pigments 
                   3.24 
                   wt.-% 
                 
                   sodium saccharinate 
                   0.02 
                   wt.-% 
                 
                   water 
                   5.00 
                   wt.-% and 
                 
                   STEARETH-100/PEG-136/HMDI Copolymer 
                   0.50 
                   wt.-%. 
                 
                   (Serad FX) 
                 
                     
                 
             
                
               
               
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
           
         
       
     
     
         4 . The mixture as claimed in  claim 3 , with the proviso that
 (i) if the mixture comprises 1,2-pentanediol, the concentration of 1,2-pentanediol is 4 wt.-% or more,   and/or   (ii) if the mixture comprises sodium palmitoyl sarcosinate, the concentration of sodium palmitoyl sarcosinate is 1 wt.-% or more,   wherein the percentages by weight refer to the total mass of the mixture.   
     
     
         5 . The mixture as claimed in  claim 3 , with the proviso that if the mixture comprises both 1,2-pentanediol and sodium palmitoyl sarcosinate, the mixture further comprises:
 (i) one or more 1,2-alkanediols comprising 5-8 Carbon atoms, wherein the one or more 1,2-alkanediols are not 1,2-pentanediol,   and/or   (ii) one or more ammonium-, sodium- or potassium-R alk -sarcosinates as defined in  claim 3 , wherein the one or more sarcosinates are not sodium palmitoyl sarcosinate.   
     
     
         6 . The mixture as claimed in  claim 3 , wherein the mixture comprises at most one substance selected from the group consisting of 1,2-pentanediol and sodium palmitoyl sarcosinate. 
     
     
         7 . The mixture as claimed in  claim 3 , wherein the ammonium-, sodium- or potassium-R alk -sarcosinates of component (ii) is selected from the group consisting of sodium lauroyl sarcosinate (CAS number 137-16-6), sodium myristoyl sarcosinate, potassium palmitoyl sarcosinate, sodium stearoyl sarcosinate, sodium oleoyl sarcosinate, potassium oleoyl sarcosinate, sodium linoleoyl sarcosinate, potassium lauroyl sarcosinate, potassium cocoyl sarcosinate, sodium cocoyl sarcosinate, ammonium lauroyl sarcosinate and ammonium cocoyl sarcosinate. 
     
     
         8 . The mixture as claimed in  claim 3 , wherein the mixture is not an oil-in-water emulsion and is not a dispersion of a fatty phase in water. 
     
     
         9 . The mixture as claimed in  claim 3 , comprising:
 5 to 30 wt. %, of constituent (i),   5 to 30 wt. %, of constituent (ii), and   optionally 3 to 22 wt. %,   wherein the percentages by weight refer case to the total mass of the mixture.   
     
     
         10 . The mixture as claimed in  claim 3 , wherein the weight ratio of constituent (i) to constituent (ii) is in the range from 5:1 to 1:5. 
     
     
         11 . The mixture as claimed in  claim 3 , comprising:
 10 to 20 wt. %   10 to 20 wt. %,   5 to 20 wt. % and   25 wt. % or more of water, and   optionally sodium oleate,   optionally sodium chloride,   optionally disodium sulfoacetate, and   optionally sodium sulfate,   wherein the percentages by weight refer to the total mass of the mixture.   
     
     
         12 . The mixture as claimed in  claim 3 , wherein the mixture has a pH of 6 or higher. 
     
     
         13 . A composition for the production of a cosmetic preparation, comprising a mixture as claimed in  claim 3  and one or more organic substances, wherein the one or more organic substances have a log K OW  value in the range from 1 to 12. 
     
     
         14 . The composition as claimed in  claim 13 , wherein the composition is transparent. 
     
     
         15 . The composition as claimed in  claim 13 , wherein the total amount of organic substances is in the range from 0.1 to 5 wt. % wherein the percentages by weight refer to the total mass of the composition. 
     
     
         16 . A cosmetic preparation, comprising:
 a mixture as claimed in  claim 3  and one or more organic substances, wherein the one or more organic substances have a log K OW  value in the range from 1 through 12.   and   optionally further cosmetically effective constituents, and   optionally other constituents.   
     
     
         17 . The cosmetic preparation as claimed in  claim 16 , wherein the cosmetic preparation is a body care product. 
     
     
         18 . The cosmetic preparation as claimed in  claim 16 , wherein the preparation comprises:
 −0.1 to 15 wt. %, of a mixture as claimed in  claim 3 ,   or   −0.1 to 15 wt. %, of a composition as claimed in  claim 13 ,   wherein the percentages by weight refer to the total mass of the cosmetic preparation.   
     
     
         19 . A method of increasing the solubility of an organic substance and/or decreasing the turbidity of a preparation comprising an organic substance and/or for increasing the transparency of a preparation comprising an organic substance, wherein the organic substance has a log K OW  value in the range from 1 to 12 comprising the step:
 mixing the organic substance with a mixture as claimed in  claim 3 .   
     
     
         20 . A method of producing a mixture as claimed in  claim 3  comprising:
 mixing constituent (i) and constituent (ii) and optionally constituent (iii). 
 
     
     
         21 . A method of improving the solubilizing action of a surfactant, comprising mixing a 1,2-alkane diol having 5-8 carbon atoms or a mixture of 1,2-alkane diols having 5-8 carbon atoms with the surfactant.