Patent FR-2966727-A1 (FR)
Title: Use of cosmetic or pharmaceutical composition comprises at least one polymer obtained by polymerization of at least one ethylene monomer alone or in mixture with an ethylene monomer as antidandruff agents
Inventor: POTTIER ANNE
IPC: A61K8/72
Filed: 2010-11-03
Abstract: Use of cosmetic or pharmaceutical composition (A) comprises at least one polymer (A) obtained by polymerization of at least one an ethylene monomer (I) alone or in mixture with an ethylene monomer (II) as antidandruff agents, is claimed. Use of cosmetic or pharmaceutical composition (A) comprises at least one polymer (A) obtained by polymerization of at least one an ethylene monomer of formula (H 2C=C(R1)-(Z) x-(R2) m-O-P(-O ->)(=O)-O-(R3) n-X +>) (I) alone or in mixture with an ethylene monomer of formula (H 2C=CR1a-(Z1a) x1-R4) (II) as antidandruff agents, is claimed. R1 : H or hydrocarbon group of formula (C pH p+1) (a); p : 1-12; Z : a group comprising -COO-, -CONH-, -CONCH 2-, -OCO-, -O-, -SO 2-, -CO-O-CO- or -COCH 2CO-; x : 0 or 1, preferably 1; R2 : optionally saturated, cyclic or noncyclic, optionally aromatic or heteroaromatic 1-50C divalent hydrocarbon group, an alkyl-cycloalkyl-alkyl group, alkyl-cycloalkyl- group, aryl-alkyl- group, or alkyl-aryl- group, optionally containing one or more heteroatoms comprising O, N, S, P, Si or F, where the heteroatom, when present, can be intercalated into the chain of the R2 group, or alternatively the group R2 is optionally substituted by one or more groups comprising -OH, phenyl optionally substituted with one or more 1-4C alkyl, OH or NR2aR2aa; R2a, R2aa : H or 1-22C alkyl group, preferably methyl or ethyl; m : 0 or 1, provided that x and m are not simultaneously equal to zero; R3 : optionally saturated, linear, branched or cyclic, aromatic or heteroaromatic, 1-30C divalent hydrocarbon group (optionally comprising 1-5 heteroatoms of O, N, S, P, Si or F), in which R3, the heteroatom, when present, can be intercalated into the R3 group, or the R3 group can be substituted by one or more groups comprising OH, phenyl optionally substituted with one or more 1-4C alkyl, OH or NR3aR3aa; R3a, R3aa : H or 1-18C alkyl group, preferably methyl or ethyl; n : 1; X +> : a group of formula (-N +>-R6(R7)(R8)); R7, R8 : H, linear, branched or cyclic 1-16C alkyl group, optionally aromatic and comprising heteroatoms of O, N, S or P; NR6R7 : optionally saturated ring (optionally aromatic, comprising 4-7 atoms, preferably 4C, 5C or 6C and optionally 2 or 3 heteroatoms of O, S or N); R1a : H or hydrocarbon group (a); p : 1-12; Z1a : -COO-, -CONH-, -CONCH 2-, -OCO-, -O-, -SO 2-, -CO-O-CO- or -COCH 2CO-; x1 : 0 or 1, preferably 1; R4 : optionally saturated, linear, branched or cyclic, optionally aromatic or heteroaromatic, 1-30C hydrocarbon group comprising 1-5 heteroatoms of O, N, S, P, Si or F, in which R4 group, or heteroatoms, when they are present, can be intercalated in the R4 group, or R4 group is optionally substituted by one or more groups comprising OH, phenyl, pyridine or amino groups of formula (NR4aR4aa) or (NR4aR4aaR4aaa); and R4a, R4aa, R4aaa : H or 1-18C alkyl group, preferably methyl or ethyl. An independent claim is included for cosmetic treatment process intended to eliminate and/or reduce dandruff, preferably caused by yeasts of the genus Malassezia, comprising application, on the hair and/or scalp, of at least one polymer (A) or a cosmetic composition. ACTIVITY : Dermatological. MECHANISM OF ACTION : None given.