Patent ID: 9017704
Filing Date: 2015-04-28
Classification: A61K,A61Q,C08F,C08L,Y10S

Abstract:
1. A cosmetic composition comprising an organic liquid medium, at least one film-forming ethylenic linear block polymer free from styrene units, and at least one other film former which is soluble or dispersible in the organic liquid medium, wherein the at least one film-forming ethylenic linear block polymer has a polydispersity index ranging from 2.5 to 8 and comprises a first block and a second block of different glass transition temperatures (Tg), wherein the first and second blocks are linked together via an intermediate segment that is different from the first and second blocks and comprises at least one constituent monomer of the first block and at least one constituent monomer of the second block, wherein the at least one constituent monomer of the first block differs from the at least one constituent monomer of the second block, the intermediate segment is a random copolymer block, and the first block of the polymer is a block with a Tg of greater than or equal to 40° C., and the second block is a block with a Tg of less than or equal to 20° C., wherein the first block is derived from at least one monomer chosen from: wherein R wherein R where R wherein the second block is derived from at least one monomer chosen from: wherein R wherein R wherein R wherein the intermediate block does not comprise acrylates or methacrylates comprising a COOR side chain in which R comprises an intercalated heteroatom chosen from O, N and S, wherein the first and the second blocks are incompatible in the organic liquid medium, and wherein the at least one film-forming ethylenic linear block polymer is non-elastomeric.