Patent ID: 7220285

Claim:
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, 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; 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 wherein the composition has a particle size distribution wherein the weight content of particles less than or equal to 65 microns is less than or equal to 5%.