Pulverulent composition for bleaching human keratin fibers

Abstract

A pulverulent composition for bleaching human keratin fibers, and more particularly the hair, comprising at least one peroxygenated salt, at least one polymer chosen from nonionic and anionic amphiphilic polymers, wherein said at least one polymer comprises at least one fatty chain; and at least one polydecene of formula C 10n H [(20n)+2] in which n ranges from 3 to 9, the at least one polydecene being present in an amount by weight of less than 10% relative to the total weight of the composition. The pulverulent composition is capable of being mixed with at least one aqueous hydrogen peroxide composition having a titer of not more than 40 volumes to form stable, homogeneous, bleaching compositions that can be applied precisely and easily, and can produce a homogeneous bleaching of the hair that does not leave the hair coarse.

What is claimed is:  
     
         1 . A pulverulent composition for bleaching human keratin fibers comprising, in a medium that is suitable for bleaching: 
 at least one peroxygenated salt;    at least one polymer chosen from nonionic amphiphilic and anionic amphiphilic polymers, wherein said at least one polymer comprises at least one fatty chain; and    at least one polydecene of formula C 10n H [(20n)+2] , in which n ranges from 3 to 9, present in an amount by weight of less than 10% relative to the total weight of the composition.    
     
     
         2 . The pulverulent composition according to  claim 1 , wherein said human keratin fibers are hair.  
     
     
         3 . The pulverulent composition according to  claim 1 , wherein n ranges from 3 to 7.  
     
     
         4 . The pulverulent composition according to  claim 1 , wherein the at least one polydecene is present in an amount by weight of less than 5% relative to the total weight of the composition.  
     
     
         5 . The pulverulent composition according to  claim 4 , wherein the at least one polydecene is present in an amount by weight ranging from 0.5% to 2% relative to the total weight of the composition.  
     
     
         6 . The pulverulent composition according to  claim 1 , wherein the nonionic amphiphilic polymers are chosen from hydroxypropyl guars modified with at least one group comprising at least one C 8  to C 22  fatty chain and polyurethane polyethers comprising at least one C 10  to C 20  fatty chain.  
     
     
         7 . The pulverulent composition according to  claim 1 , wherein the anionic amphiphilic polymers are chosen from crosslinked polymers of acrylic acid and of a C 10-30  alkyl (meth)acrylate.  
     
     
         8 . The pulverulent composition according to  claim 1 , wherein said at least one polymer is present in an amount ranging from 0.01% to 30% by weight relative to the total weight of the composition.  
     
     
         9 . The pulverulent composition according to  claim 8 , wherein said at least one polymer is present in an amount ranging from 0.01% to 15% by weight relative to the total weight of the composition.  
     
     
         10 . The pulverulent composition according to  claim 1 , further comprising at least one water-soluble polymer chosen from synthetic polymers and polymers of natural origin, in an amount of no more than 5% by weight relative to the total weight of the composition.  
     
     
         11 . The pulverulent composition according to  claim 1 , further comprising at least one silica in an amount of no more than 3% by weight relative to the total weight of the composition.  
     
     
         12 . The pulverulent composition according to  claim 1 , further comprising at least one additional polymer chosen from cationic and amphoteric polymers present in an amount of no more than 20% by weight relative to the total weight of the said composition.  
     
     
         13 . The pulverulent composition according to  claim 12 , wherein the at least one additional polymer is present in an amount of no more than 8% by weight relative to the total weight of the said composition  
     
     
         14 . The pulverulent composition according to  claim 1 , wherein the at least one peroxygenated salt is present in an amount ranging from 20% to 70% by weight relative to the total weight of the composition.  
     
     
         15 . The pulverulent composition according to  claim 14 , wherein the at least one peroxygenated salt is present in an amount ranging from 30% to 60% by weight relative to the total weight of the composition.  
     
     
         16 . A method of preparing a ready-to-use composition for bleaching human keratin fibers, comprising: 
 providing a pulverulent composition comprising, in a medium that is suitable for bleaching: 
 at least one peroxygenated salt;  
 at least one polymer chosen from nonionic and anionic amphiphilic polymers, wherein said at least one polymer comprises at least one fatty chain; and  
 at least one polydecene of formula C 10n H [(20n)+2]  in which n ranges from 3 to 9, present in an amount by weight of less than 10% relative to the total weight of the composition; and  
   mixing, at the time of application to said human keratin fibers, the pulverulent composition with an aqueous hydrogen peroxide composition having a hydrogen peroxide titre of not more than 40 volumes.    
     
     
         17 . The method according to  claim 16 , wherein said human keratin fibers are hair.  
     
     
         18 . The method according to  claim 16 , wherein the hydrogen peroxide titre of the aqueous hydrogen peroxide composition ranges from 2 to 40 volumes.  
     
     
         19 . The method according to  claim 16 , wherein the aqueous hydrogen peroxide composition comprises at least one ingredient chosen from: 
 (i) at least one surfactant, chosen from anionic and non-ionic surfactants, present in a total amount by weight ranging from 0.1% to 10% relative to the total weight of the aqueous hydrogen peroxide composition; and    (ii) at least one thickening polymer present in an amount by weight ranging from 0.1% to 10% relative to the total weight of the aqueous hydrogen peroxide composition.    
     
     
         20 . The method according to  claim 16 , wherein the aqueous hydrogen peroxide composition comprises at least one ingredient chosen from: 
 (i) a combination of at least two nonionic surfactants with different HLB values, at least one of which is less than 5, present in a total amount by weight ranging from 1.5% to 40% relative to the total weight of the aqueous hydrogen peroxide composition;    (ii) a combination of at least one nonionic surfactant with an HLB value of less than or equal to 5 and of at least one anionic surfactant, present in a total amount by weight ranging from 1% to 30% relative to the total weight of the aqueous hydrogen peroxide composition; and    (iii) at least one thickening polymer present in an amount by weight ranging from 0.1% to 10% relative to the total weight of the aqueous hydrogen peroxide composition.    
     
     
         21 . The method according to  claim 19 , wherein the at least one surfactant (i) is present in a total amount by weight ranging from 0.1% to 5% relative to the total weight of the aqueous hydrogen peroxide composition.  
     
     
         22 . The method according to  claim 20 , wherein the combination (i) of said at least two nonionic surfactants is present in a total amount by weight ranging from 1.5% to 20% relative to the total weight of the aqueous hydrogen peroxide composition.  
     
     
         23 . The method according to  claim 20 , wherein the combination (ii) of at least one nonionic surfactant and at least one anionic surfactant is present in a total amount by weight ranging from 1.5% to 15% relative to the total weight of the aqueous hydrogen peroxide composition.  
     
     
         24 . The method according to  claim 19 , wherein the at least one thickening polymer is present in an amount by weight ranging from 0.1% to 5% relative to the total weight of the aqueous hydrogen peroxide composition.  
     
     
         25 . The method according to  claim 20 , wherein the at least one thickening polymer is present in an amount by weight ranging from 0.1% to 5% relative to the total weight of the aqueous hydrogen peroxide composition.  
     
     
         26 . The method according to  claim 19 , wherein said at least one thickening polymer is combined with a surfactant present in an amount by weight ranging from 0.1% to 10% relative to the total weight of the aqueous hydrogen peroxide composition.  
     
     
         27 . The method according to  claim 26 , wherein said at least one thickening polymer is combined with a surfactant present in an amount by weight ranging from 0.1% to 5% relative to the total weight of the aqueous hydrogen peroxide composition.  
     
     
         28 . The method according to  claim 20 , wherein said at least one thickening polymer is combined with a surfactant present in an amount by weight ranging from 0.1% to 10% relative to the total weight of the aqueous hydrogen peroxide composition.  
     
     
         29 . The method according to  claim 28 , wherein said at least one thickening polymer is combined with a surfactant present in an amount by weight ranging from 0.1% to 5% relative to the total weight of the aqueous hydrogen peroxide composition.  
     
     
         30 . A method of bleaching human keratin fibers, comprising: 
 providing a pulverulent composition comprising, in a medium that is suitable for bleaching: 
 at least one peroxygenated salt;  
 at least one polymer chosen from nonionic and anionic amphiphilic polymers, wherein said at least one polymer comprises at least one fatty chain; and  
 at least one polydecene of formula C 10n H [(20n)+2]  in which n ranges from 3 to 9, present in an amount by weight of less than 10% relative to the total weight of the composition;  
   mixing, at the time of application, the pulverulent composition with an aqueous hydrogen peroxide composition having a hydrogen peroxide titre of not more than 40 volumes to produce a bleaching composition;    applying the bleaching composition to the keratin fibers;    leaving the bleaching composition on the fibers for an exposure time;    rinsing the fibers; and optionally, washing the rinsed fibers with shampoo, rinsing the washed fibers, and drying the rinsed fibers.    
     
     
         31 . The method according to  claim 30 , wherein said exposure time ranges from 10 to 45 minutes.  
     
     
         32 . The method according to  claim 30 , wherein said exposure time ranges from 1 to 60 minutes.  
     
     
         33 . The method according to  claim 31 , wherein said human keratin fibers are hair.  
     
     
         34 . The method according to  claim 32 , wherein said human keratin fibers are hair.  
     
     
         35 . A multi-compartment device for bleaching human keratin fibers comprising at least two compartments, where: 
 a first compartment comprises a pulverulent composition comprising: 
 at least one peroxygenated salt;  
 at least one polymer chosen from nonionic and anionic amphiphilic polymers, wherein said at least one polymer comprises at least one fatty chain; and  
 at least one polydecene of formula C 10n H [(20n)+2]  in which n ranges from 3 to 9, present in an amount by weight of less than 10% relative to the total weight of the composition; and  
   a second compartment comprises an aqueous hydrogen peroxide composition having a titre of not more than 40 volumes.    
     
     
         36 . A method of preparing a pulverulent composition for bleaching human keratin fibers, comprising: 
 mixing, at ambient temperature of about 25° C., at least one polydecene of formula C 10n H [(20n)+2]  in which n ranges from 3 to 9 with a mixture comprising at least one peroxygenated salt and at least one polymer chosen from nonionic and anionic amphiphilic polymers, wherein said at least one polymer comprises at least one fatty chain.    
     
     
         37 . The method according to  claim 36 , wherein said human keratin fibers are hair.