Abstract:
The invention concerns a cosmetic composition for oxidation dyeing of keratinous fibres comprising in a support suitable for keratinous fibre dyeing: (a) at least an enzyme such as laccase; (b) at least a particular alkalising agent; (c) at least an oxidation colouring agent, as well as the dyeing methods using said composition.
Abstract:
The invention relates to a process for dyeing keratinous fibres, which consists in applying to these fibres a composition containing, in a suitable medium for dyeing, at least one coupler of formula: ##STR1## where R.sub.1 denotes hydrogen or alkyl,R.sub.2 and R.sub.3 denote hydrogen, alkyl, COOR' where R' is alkyl or hydrogen,at least one of the groups R.sub.2 and R.sub.3 denoting hydrogen,R.sub.4 denotes hydrogen, alkyl, hydroxyalkyl, polyhydroxyalkyl or aminoalkyl,Z.sub.1 and Z.sub.2 denote hydrogen, alkyl, hydroxyl, halogen, alkoxy,at least one of the groups Z.sub.1 and Z.sub.2 is other than hydrogenat least one oxidation dye precursor,at least one oxidizing agent, the pH of the composition applied to the fibres being higher than 7.
Abstract:
A method for dyeing keratin fibers, wherein a composition is applied to said fibers which contains, in a suitable dyeing medium, at least one coupler having formula (I) ##STR1## wherein R.sub.1 is hydrogen or alkyl; R.sub.2 and R.sub.3 are hydrogen, alkyl, COOR', where R' is alkyl or hydrogen; R.sub.4 is hydrogen, hydroxyalkyl, alkyl, polyhydroxyalkyl or acetyl or aminoalkyl wherein the amine may be mono- or disubstituted by alkyl; Z.sub.1 and Z.sub.2 are hydrogen, alkyl, hydroxy, halogen, alkoxy or a salt thereof; at least one precursor of an oxidation hair dye; and at least one oxidizing agent, the pH of the composition applied to the fibers being less than 7.
Abstract translation:一种用于染色角蛋白纤维的方法,其中将组合物施加到所述纤维中,所述纤维在合适的染色介质中包含至少一种具有式(I)的偶联剂:其中R 1是氢或烷基; R2和R3是氢,烷基,COOR',其中R'是烷基或氢; R4是氢,羟烷基,烷基,多羟基烷基或乙酰基或氨基烷基,其中胺可以被烷基单或二取代; Z 1和Z 2是氢,烷基,羟基,卤素,烷氧基或其盐; 氧化染发剂的至少一种前体; 和至少一种氧化剂,施加到纤维上的组合物的pH小于7。
Abstract:
The invention relates to a photostable screening cosmetic composition for protecting human skin against UV rays, comprising, in a cosmetically acceptable substrate containing at least one fatty phase, 1 to 3% by weight of 4-(1,1-dimethylethyl)-4'-methoxydibenzoylmethane and at least 4.5% by weight of p-methylbenzylidenecamphor, the weight ratio of p-methylbenzylidenecamphor to 4-(1,1-dimethyl-ethyl)-4'-methoxydibenzoylmethane being higher than or equal to 3.It also relates to a process for protecting the skin against UV radiation and to a process for stabilizing 4-(1,1-dimethylethyl)-4'-methoxydibenzoylmethane against UV radiation.
Abstract:
Process for the preparation of 5,6-dihydroxyindole, wherein the compound of formula: ##STR1## in which R' denotes a hydrogen atom or an optionally substituted benzyl radical, is subjected either to the action of hydrogen under pressure or to a hydrogen transfer operation, in a solvent medium and in the presence of a hydrogenation catalyst.
Abstract:
3-Substituted para-aminophenols, process for preparing them, their use for dyeing keratinous fibres and the intermediate compounds used in the process of preparation.3-Substituted para-aminophenols, of general formula: ##STR1## where X.dbd.H, halogen; Y.dbd.O--, --S--; R.dbd.alkyl, hydroxyalkyl, C.sub.1-4 aminoalkyl or C.sub.3 -C.sub.6 polyhydroxyalkyl;with the proviso that, when X.dbd.H, R is not methyl, and when X.dbd.H and Y.dbd.O, R is not ethyl;process #or preparing them, intermediate compounds of formula: ##STR2## where X.sup.1 .dbd.halogen, Y and R have the meaning stated above; with the proviso that, when Y.dbd.O, R is not methyl, and when R.dbd.aminoalkyl, X.sub.1 can also denote hydrogen;dyeing compositions containing one or more compounds of formula (I), and a process for dyeing human hair.
Abstract:
A process for dyeing keratinous fibers involves applying to the fibers, at least one compound of formula ##STR1## wherein R.sub.1 represents hydrogen, alkyl, acetyl, benzoyl, phenyl or carboxylalkyl and R.sub.2 and R.sub.3 represent hydrogen, alkyl, hydroxyl, halogen, nitro, alkyl phenyl, phenyl or alkoxy, and an aminopyrimidine of the formula ##STR2## wherein R.sub.5 represents hydrogen, hydroxyl or ##STR3## represents hydroxyl or ##STR4## R.sub.7 represents H or NH.sub.2, R.sub.8 represents ##STR5## and R.sub.9 and R.sub.10 represent hydrogen, alkyl, (CH.sub.2).sub.p -Z wherein p is 1 to 4 and Z represents OH, halogen, NH.sub.2, NHR' or NHR'R" wherein R' and R" represent alkyl or together form a heterocycle, with the proviso that one of R.sub.5 to R.sub.8 represents NH.sub.2.
Abstract:
The invention relates to a process for dyeing keratinous fibers, comprising the simultaneous or sequential application of a component (A) containing at least one compound of formula (I): ##STR1## in which: R.sub.1 denotes hydrogen, alkyl, acetyl, benzoyl, phenyl or carboxyalyl;R.sub.2 and R.sub.3 denote a hydrogen, alkyl, hydroxyl, halogen, nitro, alkylphenyl, phenyl or alkoxy;and a component (B) containing at least one compound of formula (II): ##STR2## in which: R.sub.4 denotes a hydrogen atom or a .beta.-hydroxyethyl group;n=0, 1 or 2, and m=0 or 1;as well as its cosmetically acceptable salts; or one compound of formula (III): ##STR3## in which: R.sub.5 denotes a hydrogen atom, a hydroxyl group or a group ##STR4## R.sub.6 denotes a hydroxyl group or a group N ##STR5## R.sub.7 denotes H or NH.sub.2, R.sub.8 denotes a group ##STR6## R.sub.9 and R.sub.10, independently of one another, representing a hydrogen atom, a C.sub.1 -C.sub.4 alkyl, a group (CH.sub.2).sub.p --Z, where p=1 to 4 and Z represents OH, halogen, NH.sub.2, NHR' or NHR'R", where R' and R" denote a C.sub.1 -C.sub.4 alkyl or form a heterocycle with the nitrogen atom to which they are attached;with the proviso that one of R.sub.5 to R.sub.8 denotes NH.sub.2 ;and its cosmetically acceptable salts, as well as to the dyeing agents employed.
Abstract:
Method for dyeing keratinous fibres, in particular human keratinous fibres, such as hair, characterized in that a composition (A) containing, in a medium appropriate for dyeing, at least one aminoindole corresponding to the formula: ##STR1## in which: R.sub.1 and R.sub.3, independently of one another, represent a hydrogen atom or a C.sub.1 -C.sub.4 alkyl group;R.sub.2 denotes hydrogen or a C.sub.1 -C.sub.4 alkyl group or COOR', R' being a hydrogen atom or a C.sub.1 -C.sub.4 alkyl group;R.sub.4 represents a hydrogen atom or a C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 hydroxyalkyl or C.sub.2 -C.sub.4 polyhydroxyalkyl group;Z.sub.1 represents a hydrogen or halogen atom or a C.sub.1 -C.sub.4 alkyl group or OR;R being a hydrogen atom or a C.sub.1 -C.sub.4 alkyl group; andZ.sub.2 represents a hydrogen atom or a C.sub.1 -C.sub.4 alkyl group;and its saltsis applied to said fibres, the colour being developed with the aid of an oxidizing system.
Abstract:
Use in cosmetics, especially as UV screens, of diorganopolysiloxanes containing a 2-hydroxybenzophenone functional group of formula: ##STR1## where R is C.sub.1 -C.sub.10 alkyl, phenyl or 3,3,3-trifluoropropyl, B is R or A, r=0-200, s=0-50, or of formula: ##STR2## where u=1-20 and t=0-20 and t+u.gtoreq.3, A and/or B denoting a 4-alkyleneoxy-2-hydroxybenzophenone radical.