Heating cosmetic treatment process using a particular polyester

Abstract

Non-therapeutic process for making up and/or caring for non-fibrous human keratin materials, especially the skin, its mucous membranes or the nails, by bringing an outer surface of a piece of a particular solid cosmetic composition into contact with or close to a heating device so as to heat the piece locally in order to soften essentially only the outer surface and to lower its coefficient of dynamic friction, and then applying the outer surface of the composition thus heated to the region to be treated.

1 . A process for making up and/or caring for a non-fibrous human keratin material, comprising:
 bringing an outer surface of a piece of a solid cosmetic composition into contact with or close to a heating device so as to heat the piece locally in order to soften essentially only the outer surface of the solid cosmetic composition and to lower the solid cosmetic composition's coefficient of dynamic friction, and   applying the thus heated outer surface of the composition to the non-fibrous human keratin material,   wherein the solid cosmetic composition comprises, in a physiologically acceptable medium:   
       (i) at least one polyester obtained by reacting:
 a tetraol containing from 4 to 10 carbon atoms; 
 a linear or branched saturated monocarboxylic acid containing from 9 to 23 carbon atoms; 
 a cyclic dicarboxylic acid containing from 6 to 12 carbon atoms; and 
 an aromatic monocarboxylic acid containing from 7 to 11 carbon atoms, and 
 
       (ii) at least one solid fatty substance chosen from waxes and pasty fatty substances. 
     
     
         2 . The process according to  claim 1 , in which the polyester(s) is obtained by reacting:
 from 10% to 30% by weight of a tetraol containing from 4 to 10 carbon atoms;   from 40% to 80% by weight of a linear or branched saturated monocarboxylic acid containing from 9 to 23 carbon atoms;   from 5% to 30% by weight of a cyclic dicarboxylic acid containing from 6 to 12 carbon atoms;   from 0.1% to 10% by weight of an aromatic monocarboxylic acid containing from 7 to 11 carbon atoms, and   the contents being expressed as weight percentages relative to the total weight of the polyester.   
     
     
         3 . The process according to  claim 1 , in which the polyester(s) are chosen from benzoic acid/isophthalic acid/isostearic acid/pentaerythritol polyesters, benzoic acid/isophthalic acid/stearic acid/pentaerythritol polyesters, and mixtures thereof. 
     
     
         4 . The process according to  claim 1 , in which the composition comprises at least two polyesters that are different from each other. 
     
     
         5 . The process according to  claim 1 , in which the composition comprises from 1% to 60% by weight of polyester relative to the total weight of the composition. 
     
     
         6 . The process according to  claim 1 , in which the composition further comprises at least one non-volatile oil. 
     
     
         7 . The process according to  claim 1 , in which the composition further comprises at least one oil with a molecular weight of greater than 500 g/mol. 
     
     
         8 . The process according to  claim 1 , in which the composition further comprises a phenyl silicone oil. 
     
     
         9 . The process according to  claim 6 , in which the oil is present in a content of 1% to 90% by weight relative to the total weight of the composition. 
     
     
         10 . The process according to  claim 1 , in which the solid cosmetic composition has a temperature-sensitive coefficient of dynamic friction greater than or equal to 0.5 at 25° C. 
     
     
         11 . The process according to  claim 1 , in which the solid cosmetic composition has a hardness of greater than or equal to 80 Nm −1  at 20° C. 
     
     
         12 . The process according to  claim 1 , in which the locally heated surface of the composition is heated to a temperature where the coefficient of dynamic friction of the locally heated surface of the composition is less than or equal to 0.45. 
     
     
         13 . The process according to  claim 1 , in which the composition is in the form of a wand. 
     
     
         14 . The process according to  claim 1 , in which the keratin material is the lips and the composition is a lipstick. 
     
     
         15 . A kit comprising:
 a solid cosmetic composition comprising, in a physiologically acceptable medium:
 (i) at least one polyester obtained by reacting: 
   a tetraol containing from 4 to 10 carbon atoms;   a linear or branched saturated monocarboxylic acid containing from 9 to 23 carbon atoms;   a cyclic dicarboxylic acid containing from 6 to 12 carbon atoms; and   an aromatic monocarboxylic acid containing from 7 to 11 carbon atoms, and
 (ii) at least one solid fatty substance chosen from waxes and pasty fatty substances, and 
   a heating device for locally heating a surface of a piece of the composition.