Pressurized hair composition comprising at least one elastomeric film-forming polymer

Abstract

The present disclosure relates to a pressurized hair composition comprising at least one elastomeric film-forming polymer and at least one propellant, and also the use of these compositions for styling the hair.

1 . A hair composition, packaged in an aerosol device, comprising, in a cosmetically acceptable medium, at least one elastomeric film-forming polymer chosen from non-ionic, anionic, amphoteric and cationic elastomeric film-forming polymers comprising at least one fluoro group, wherein the at least one elastomeric film-forming polymer is chosen such that the material obtained by drying the at least one elastomeric film-forming polymer, at ambient temperature and at a relative humidity of 55%±5%, has a mechanical profile defined by at least: 
 a) an elongation at break (ε) of greater than or equal to 800%;    b) an instantaneous recovery (R i ) of greater than or equal to 75%, after an elongation of 150%; and    c) a recovery (R 300s ) at 300 seconds of greater than 80%, and    at least one propellant.    
     
     
         2 . The composition according to  claim 1 , wherein the at least one elastomeric film-forming polymer is soluble in an aqueous or aqueous-alcoholic medium.  
     
     
         3 . The composition according to  claim 1 , wherein, at a relative humidity ranging from 30% to 80%, the elongation at break of the film obtained ranges from 400% to 1200% and/or its instantaneous recovery ranges from 57% to 93%.  
     
     
         4 . The composition according to  claim 2 , wherein the at least one elastomeric film-forming polymer is soluble in an aqueous-alcoholic medium.  
     
     
         5 . The composition according to  claim 1 , wherein the material obtained by drying the at least one elastomeric film-forming polymer, at ambient temperature and at a relative humidity of 55%±5%, is water-soluble and/or water-dispersible.  
     
     
         6 . The composition according to  claim 4 , wherein an aqueous-alcoholic solution of 5% by weight of the at least one elastomeric film-forming polymer, comprising 30% by weight of water made up to 100% by weight with alcohol, has a viscosity of greater than 20 cps and less than 200 cps at 25° C.  
     
     
         7 . The composition according to  claim 1 , wherein the at least one elastomeric film-forming polymer is present in an amount ranging from 0.05% to 20% by weight, relative to the total weight of the composition.  
     
     
         8 . The composition according to  claim 7 , wherein the at least one elastomeric film-forming polymer is present in an amount ranging from 0.1% to 15% by weight, relative to the total weight of the composition.  
     
     
         9 . The composition according to  claim 1 , wherein the at least one elastomeric film-forming polymer is chosen from polyurethanes, polyvinyl alcohols, and polymers comprising at least one (meth)acrylic unit.  
     
     
         10 . The composition according to  claim 1 , wherein the at least one propellant is chosen from dimethyl ether, C 3-5  alkanes, 1,1-difluoroethane, mixtures of dimethyl ether and C 3-5 alkanes, and mixtures of 1,1-difluoroethane and at least one compound chosen from dimethyl ether and C 3-5  alkanes.  
     
     
         11 . The composition according to  claim 1 , further comprising at least one auxiliary film-forming agent chosen from plasticizers and agents for facilitating the formation of the film of the at least one elastomeric polymer on a keratin material.  
     
     
         12 . The composition according to  claim 1 , further comprising at least one compound chosen from cosmetic additives and formulation adjuvants.  
     
     
         13 . The composition according to  claim 12 , wherein the cosmetic additives and formulation adjuvants are chosen from anionic, cationic, non-ionic and amphoteric film-forming polymers that are soluble or dispersible in an aqueous or aqueous-alcoholic medium, volatile and non-volatile silicones, anionic, cationic, amphoteric and non-ionic surfactants, thickeners, pearlescent agents, UV-screening agents, free-radical scavengers, fragrances, preserving agents, pigments and dyes, pH modifiers, solubilizing agents, plasticizers, anti-foaming agents, waxes and oils, vitamins, conditioners, and organic and mineral particles that are synthetic or of natural origin.  
     
     
         14 . The composition according to  claim 1 , comprising at most 55% by weight of volatile organic compounds, relative to the total weight of the composition.  
     
     
         15 . A method for styling hair, comprising applying to the hair a composition, packaged in an aerosol device, comprising, in a cosmetically acceptable medium, at least one elastomeric film-forming polymer chosen from non-ionic, anionic, amphoteric and cationic elastomeric film-forming polymers comprising at least one fluoro group, wherein the at least one elastomeric film-forming polymer is chosen such that the material obtained by drying the at least one elastomeric film-forming polymer, at ambient temperature and at a relative humidity of 55%±5%, has a mechanical profile defined by at least: 
 a) an elongation at break (ε) of greater than or equal to 800%;    b) an instantaneous recovery (R i ) of greater than or equal to 75%, after an elongation of 150%; and    c) a recovery (R 300s ) at 300 seconds of greater than 80%, and    at least one propellant.