COMPOSITION FOR TREATING KERATIN FIBRES COMPRISING A BLOCK COPOLYMER, A SILOXANE RESIN AND A VOLATILE SOLVENT

摘要

The present invention relates to a composition for treating keratin fibres comprising one or more ethylenic block copolymers, containing at least one first block having a glass transition temperature (Tg) greater than or equal to 40°C and being derived wholly or partly from one or more first monomers, which are such that the homopolymer prepared from these monomers has a glass transition temperature greater than or equal to 40°C, and at least one second block having a glass transition temperature less than or equal to 20°C and being derived wholly or partly from one or more second monomers, which are such that the homopolymer prepared from these monomers has a glass transition temperature less than or equal to 20°C, said first block and said second block being joined together by a random intermediate segment comprising at least one of said first monomers constituting the first block and at least one of said second monomers constituting the second block, and said block copolymer having a polydispersity index I greater than 2, a siloxane resin with propyl radicals comprising the units, and one or more volatile solvents, the weight ratio of the volatile solvent to the ethylenic block copolymer being greater than 2.