Patent ID: 6383996
Filing Date: 2002-05-07
Classification: A61K,A61Q

Abstract:
An antidandruff composition for treating the hair and scalp, comprising at least one antidandruff agent and at least one acrylic terpolymer in a cosmetically acceptable medium,wherein, the at least one antidandruff agent is selected from the group consisting of: i) benzethonium chloride, benzalkonium chloride, chlorhexidine, chloramine T, chloramine B, 1,3-dibromo-5,5-dimethylhydantoin, 1,3-dichloro-5,5-dimethyl-hydantoin, 3-bromo-1-chloro-5,5-dimethyl-hydantoin, and N-chlorosuccinimide; ii) 1-hydroxy-2-pyridone derivatives represented by formula (I): â€ƒin which R3 represents an alkyl group containing from 1 to 17 carbon atoms, an alkenyl group containing from 2 to 17 carbon atoms, a cycloalkyl group containing from 5 to 8 carbon atoms or a bicycloalkyl group containing from 7 to 9 carbon atoms; a cycloalkyl(-alkyl) group, an aryl group, an aralkyl group with an alkyl containing from 1 to 4 carbon atoms, an arylalkenyl group with an alkenyl containing from 2 to 4 carbon atoms, an aryloxyalkyl or arylmercaptoalkyl group with an alkyl containing from 1 to 4 carbon atoms, a furylalkenyl group with an alkenyl or a furyl containing from 2 to 4 carbon atoms, an alkoxy group containing from 1 to 4 carbon atoms, a nitro group, a cyano group, or a halogen atom; R4 represents a hydrogen atom, a C1-C4 alkyl group, a C2-C4 alkenyl group, a halogen atom, a phenyl group, or a benzyl group; and X represents an organic base, an alkali metal ion, an alkaline-earth metal ion or an ammonium ion; iii) the trihalocarbamides of formula (II) below: â€ƒin which Z represents a halogen atom or a C1-C4 trihaloalkyl group; iv) triclosan, represented by formula (III) v) azole compounds; vi) antifungal polymers; vii) selenium sulphides; viii) sulphur in its various forms, cadmium sulphide, allantoin, coal tar or wood tar, undecylenic acid, fumaric acid, and allylamines; and ix) mixtures thereof; and and wherein, the at least one acrylic terpolymer contains, in amounts based on the total weight of monomers constituting the terpolymer: acrylate monomer (a), in an amount of 5% to 80% by weight and selected from the group consisting of a C1-C6 alkyl acrylate and a C1-C6 alkyl methacrylate; monomer (b), in an amount of 5% to 80% by weight and selected from the group consisting of a heterocyclic vinyl compound containing at least one nitrogen or sulphur atom, a (meth)acrylamide, a mono- and di(C1-C4)alkylamino(C1-C4)alkyl(meth)acrylate, and a mono- and di (C1-C4)alkylamino(C1-C4)alkyl(meth)acrylamide; and monomer (c), in an amount of 0.1% to 30% by weight and selected from the group consisting of: i) a urethane produced by reaction between a monoethylenic unsaturated isocyanate and a nonionic surfactant encompassing a block copolymer of 1,2-butylene oxide and of ethylene oxide containing a C1-4 alkoxy end; ii) a copolymerizable ethylenic unsaturated surfactant monomer obtained by condensing a nonionic surfactant with an &agr;,&bgr;-ethylenic unsaturated carboxylic acid or its anhydride; iii) a urea surfactant monomer produced by reacting a monoethylenic unsaturated monoisocyanate with a nonionic surfactant containing an amine functionality; iv) a (meth)allyl ether of formula CH2&boxH;CR1CH2OAmBnApR2 in which R1 denotes a hydrogen atom or a methyl group, A denotes a propylenoxy or butylenoxy group, B denotes ethylenoxy, n is equal to zero or denotes an integer less than or equal to 200, m and p denote zero or an integer less than n, and R2 is a hydrophobic group of at least 8 carbon atoms; and v) a nonionic urethane monomer produced by reacting a monohydric nonionic surfactant with a monoethylenic unsaturated isocyanate.