摘要:
Process for the temporary dyeing of keratinous fibers with a composition containing an insoluble pigment obtained by the oxidative polymerization of an indole compound of formula (I) ##STR1## in which R.sup.1 and R.sup.3 are hydrogen or alkyl; R.sup.2 is hydrogen, alkyl carboxyl or alkoxy carbonyl; R.sup.4 and R.sup.7 are hydrogen, hydroxy, alkyl, amino, alkoxy, acyloxy or acylamino; R.sup.5 is hydrogen, hydroxy, alkoxy, alkyl, halogen, amino, acyloxy, acylamino or trimethylsilyloxy; R.sup.6 is hydrogen, hydroxy, alkoxy, amino, acyloxy, acylamino, trimethylsilyloxy or hydroxyalkylamino; R.sup.5 and R.sup.6 can also form, together with the carbon atoms to which they are attached, a carbonyl-dioxy ring; at least one of the radicals R.sup.4 to R.sup.7 is an OZ or NHR.sup.8 grouping, the R.sup.8 radical of the NHR.sup.8 grouping being hydrogen, acyl or hydroxyalkyl and the Z radical of the OZ grouping being hydrogen, acyl, alkyl or a trimethylsilyl group.
摘要:
Use for dyeing keratinous fibres, and especially human hair, on a compound corresponding to the formula: ##STR1## in which X denotes a bromine or chlorine atom.
摘要:
A product in the form of colored inorganic particles including one or a number of melanin pigments, a process for its preparation and to its use, especially in the field of cosmetics, for make-up for the exoskeleton and/or for the skin, and in protecting human skin against UV radiation.
摘要:
5-Substituted ortho-aminophenols of formula: ##STR1## in which: R.sub.1 denotes a hydrogen atom, an alkyl radical having 1 to 4 carbon atoms or a hydroxyalkyl radical having 1 to 4 carbon atoms; andR.sub.2 denotes, independently of R.sub.1, an alkyl radical having 1 to 4 carbon atoms, an alkoxy radical having 1 to 4 carbon atoms or a benzyl radical;the addition salts with an acid and the phenates, anddyeing composition containing a compound of formula (I) or a salt or a phenate of such a compound.The 5-substituted ortho-aminophenols enable hair to be dyed in a rich spectrum of hues having good durability.
摘要:
The invention relates to a process for the preparation of a melanic pigment, comprising the polymerisation of a compound corresponding to the formula: ##STR1## in which: R denotes a hydrogen atom, an alkyl, alkoxy, hydroxyalkyl, SiR.sub.4 R.sub.5 R.sub.6 or aminoalkyl radical, or an aryl radical which is unsubstituted or substituted by OH, NH.sub.2, alkyl, alkoxy or NO.sub.2 ;R.sub.1 and R.sub.2 denote alkyl groups or together form a methylene or ethylene group which is optionally substituted by one or more alkyl groups, and R.sub.2 denotes hydrogen or COOH, in the presence of an oxidizing medium and of an enzyme with (per)oxidizing activity or of a compound which has a similar activity, and to powders which make use of them and to their cosmetic use.
摘要翻译:本发明涉及一种制备黑色素的方法,包括对应于下式的化合物的聚合:其中:R表示氢原子,烷基,烷氧基,羟基烷基,SiR 4 R 5 R 6或氨基烷基 或未取代或被OH,NH 2,烷基,烷氧基或NO 2取代的芳基; R1和R2表示烷基或一起形成任选被一个或多个烷基取代的亚甲基或亚乙基,R 2表示氢或COOH,在氧化介质和具有(以下)氧化活性的酶或 具有相似活性的化合物和使用它们的粉末及其化妆品用途的粉末。
摘要:
The invention relates to a product in powder form consisting of organic or inorganic particles having a lamellar structure, having a size of less than 50 microns and containing at least one synthetic melanotic pigment formed in situ by oxidation of an indole compound, and to its use for the protection of the human epidermis, in make-up products and for dyeing hair.
摘要:
A mineral or organic particle-based product comprising an indoline product, a method for preparing same, and the use thereof in cosmetics. The product is a powder consisting of mineral or organic particles smaller than 200 microns, and comprises, in and/or on the particles, an indoline product obtained by oxidative polymerization using at least one indoline.
摘要:
A mineral or organic particle-based product comprising an indoline product, a method for preparing same, and the use thereof in cosmetics. The product is a powder consisting of mineral or organic particles smaller than 200 microns, and comprises, in and/or on the particles, an indoline product obtained by oxidative polymerization using at least one indoline.
摘要:
New dimethyl derivatives of 3-nitro-4-aminoaniline, process for their preparation, and their use for dyeing keratinic fibres.The invention relates to dimethyl derivatives of 3-nitro-4-aminoaniline of formula: ##STR1## in which CH.sub.3 is in position 2 or 5 of the benzene ring and R.sub.1 and R.sub.2 denote independently of each other a hydrogen atom, a lower alkyl group, a lower mono- or polyhydroxyalkyl or a lower aminoalkyl group in which the amino group is optionally mono- or disubstituted by a lower alkyl radical or by a lower mono- or polyhydroxyalkyl radical, it being understood that the two symbols R.sub.1 and R.sub.2 can be simultaneously other than hydrogen only when the mobile CH.sub.3 radical is in position 5, or cosmetically acceptable salts of these compounds, as well as the process for preparing them and their use in dye compositions, in particular for hair, equally for direct coloring and for coloring by an oxidation route.
摘要:
A N1,N4-dihydroxyethylated 2-nitro-p-phenylenediamine of formula (I), wherein R is C3-4 aklyl, and cosmetically acceptable salts thereof, for use in direct dyeing to give blue through purple shades which are wash-fast, light-fast, weatherproof and sweat resistant, and optionally combined with yellow and optionally read or orange-coloured dyes to give natural hues.