Novel emollient composition

Abstract

The invention provides an emollient composition comprising at least one hydrocarbon fluid in an amount of 50 to 100% by weight, preferably from 80 to 100% by weight, more preferably from 90 to 100% by weight and preferably equal to 100% by weight relative to the total weight of the composition, said fluid being obtainable by a process of catalytically hydrogenating a feed comprising more than 85% by weight of oligomerized olefins, at a temperature from 115 to 195° C. and at a pressure from 30 to 70 bars. The invention further provides a cosmetic, dermatological or pharmaceutical composition comprising at least one emollient composition according to the invention, and uses thereof.

1 .- 17 . (canceled) 
     
     
         18 . An emollient composition comprising at least one hydrocarbon fluid in an amount of 50 to 100% by weight, relative to the total weight of the composition, said fluid being obtainable by a process of catalytically hydrogenating a feed comprising more than 85% by weight of oligomerized olefins, at a temperature from 115 to 195° C. and at a pressure from 30 to 70 bars. 
     
     
         19 . The emollient composition of  claim 18 , wherein the hydrocarbon fluid has a bromine Index of less than 5 mgBr/100 g of fluid. 
     
     
         20 . The emollient composition of  claim 18 , wherein the process comprises three hydrogenation stages. 
     
     
         21 . The emollient composition of  claim 18 , wherein the feed comprises more than 90% by weight of oligomerized olefins. 
     
     
         22 . The emollient composition of  claim 18 , wherein the feed is selected from trimeric butene and tetrameric propylene cuts. 
     
     
         23 . The emollient composition of  claim 18 , wherein the hydrogenation conditions are the following:
 Pressure: 40 to 60 bars;   Temperature: 125 to 185° C.;   Liquid hourly space velocity (LHSV): 0.1 to 3 hr −1 ;   Hydrogen treat rate: 50 to 300 Nm 3 /ton of feed.   
     
     
         24 . The emollient composition of  claim 18 , wherein the process comprises (i) a fractionating step which is carried out before the hydrogenating step, or after the hydrogenating step or both, or (ii) the process comprises three hydrogenation stages, or (iii) both (i) and (ii). 
     
     
         25 . The emollient composition of  claim 18 , wherein the fluid contains less than 50 ppm of aromatics by weight. 
     
     
         26 . The emollient composition of  claim 18 , wherein the fluid contains more than 80% by weight of isoparaffins. 
     
     
         27 . The emollient composition of  claim 18 , wherein the fluid has a boiling point from 150 to 260° C., and/or wherein the fluid has a boiling range below 90° C. 
     
     
         28 . A cosmetic, dermatological or pharmaceutical composition comprising at least one emollient composition according to  claim 18  in an amount ranging from 0.5 to 80% by weight relative to the total weight of the composition. 
     
     
         29 . The cosmetic, dermatological or pharmaceutical composition of  claim 28  comprising at least one fatty substance selected from vegetable oils, hydrocarbon oils other than hydrocarbon oil of said emollient composition, vegetable butters, fatty ethers and alcohols, oily esters, alkanes and silicone oils and/or at least one additive. 
     
     
         30 . The cosmetic, dermatological or pharmaceutical composition of  claim 28  which is an anhydrous composition, an emulsion such as a water-in-oil emulsion (W/O), an oil-in-water emulsion (O/W) or a multiple emulsion (including W/O/W or O/W/O), a nano-emulsion, or a dispersion. 
     
     
         31 . A method of cosmetic treatment comprising at least a step of topically applying the emollient composition according to  claim 18 . 
     
     
         32 . A method of pharmaceutical treatment comprising a step of using the emollient composition as claimed in  claim 18 . 
     
     
         33 . A method for the preparation of cosmetic, dermatological or pharmaceutical products comprising a step of using the emollient composition according to  claim 18 . 
     
     
         34 . The method of  claim 31 , wherein the emollient composition is applied by spreading onto the skin. 
     
     
         35 . The emollient composition of  claim 18 , comprising from 90 to 100% by weight of the hydrocarbon fluid, relative to the total weight of the composition. 
     
     
         36 . The emollient composition of  claim 26 , wherein the fluid contains more than 97% by weight of C12 isoparaffins. 
     
     
         37 . The cosmetic, dermatological or pharmaceutical composition of  claim 28 , comprising from 5 to 30% by weight relative to the total weight of the composition of the emollient composition, said emollient composition comprising 100% fluid.