Abstract:
A benzofuran compound of the formula ##STR1## wherein A represents ##STR2## wherein R.sub.1, R.sub.2, R.sub.3, B and D have various meanings. The benzofuran compound is usefully employed in pharmaceutical and cosmetic compositions.
Abstract:
A benzofuran compound of the formula ##STR1## wherein A represents ##STR2## wherein R.sub.1, R.sub.2, R.sub.3, B and D have various meanings. The benzofuran compound is usefully employed in pharmaceutical and cosmetic compositions.
Abstract:
Polyvalent metal salt of a sulphonated derivative of benzylidenecamphor having the general formula: ##STR1## in which M.sup.n+ denotes a polyvalent metal cation in which n is equal to 2, 3 or 4; andOne of the symbols X.sub.1 or X.sub.2 denotes a hydrogen atom, the other denoting one of the following radicals Y.sub.1 Y.sub.2 : ##STR2## where M.sup.n+ has the same meaning as above. Cosmetic composition screening out UV rays of wavelengths 280-380 nm, containing the compound of formula (I) as well as, optionally, other sunscreens.
Abstract:
A method for manufacturing a zinc oxide based powder by coprecipitation with one or more additions is disclosed. The method comprises:a step for the preparation of one or more solutions by dissolving defined quantities of salts of elements that go into the composition of the powder: zinc and addition(s),a step for the preparation of a buffer solution pre-saturated by the said elements, the said buffer solution possessing a pH which is defined so as to cause the precipitation of the hydroxylated compounds of elements corresponding to the elements saturating the buffer solution,a step during which the solutions are added to the said buffer solution, the drop in the pH being compensated for by the addition of a base and the volume of the buffer solution being kept constant by drawing off excess liquid,a step during which the precipitate obtained is treated to obtain the said powder.
Abstract:
One subject of the present invention is a dye composition comprising benzyl alcohol, at least one C1-C4 monoalcohol and at least one anthraquinone direct dye of formula (I) or azomethine direct dye of formula (II). The composition of the invention makes it possible to obtain colourings that are intense and resistant.
Abstract:
The subject of the present invention is therefore a method for the lightening and/or lightening dyeing of keratin materials, which consists in treating the keratin fibres with at least: a) one direct emulsion (A) comprising one or more fatty substances free of carboxylic acid groups, one or more surfactants, an amount of water of greater than 5% by weight of the total weight of the emulsion, and one or more oxidizing agents; and b) one direct emulsion (B) comprising one or more fatty substances free of carboxylic acid groups, one or more surfactants, an amount of water of greater than 5% by weight of the total weight of the emulsion, and one or more alkaline agents; the concentration of fatty substances free of carboxylic acid groups being at least equal to 25% by weight of the total weight of the composition obtained after mixing the two direct emulsions (A) and (B). This process does not have the drawbacks caused by the presence of high contents of alkaline agents, and uses dyeing and/or bleaching compositions having improved lightening properties and that are stable over time, while at the same time remaining at least as effective in terms of the uniformity of the lightening, while at the same time preserving the quality of the keratin fibre.
Abstract:
The invention relates to a device having one or more compartments, or “kit”, for dyeing keratin fibres, in which a first compartment contains a dye composition free of oxidizing agent, comprising at least one hair dye and at least one polycondensate of ethylene oxide and propylene oxide consisting of polyethylene glycol and polypropylene glycol blocks, and optionally a second compartment contains an oxidizing composition.The invention also relates to an agent for dyeing and/or bleaching keratin fibres, obtained by mixing a composition A comprising at least one alkaline agent with a composition B comprising at least one oxidizing agent, compositions A and/or B comprising at least one fatty substance free of carboxylic acid groups, at least one polycondensate of ethylene oxide and propylene oxide, and a system of nonionic surfactants other than polycondensates of ethylene oxide and propylene oxide, with a weighted HLB of greater than or equal to 8, the amount of fatty substance being greater than 20% by weight relative to the total weight of the dyeing and/or bleaching agent.
Abstract:
The present invention relates to a dyeing composition comprising one or more acid direct dyes of indigoid type of formula (I) in which n has the value 0, 1 or 2, R1 represents an —SO3M group where M represents a hydrogen atom, an ion resulting from an alkali metal, an ammonium group or an ion resulting from an organic amine, X and Y represent, independently of one another, >C═O, Z below or Z′ below, Formula (Z) n′ having the value 0, 1 or 2, Formula (Z′) n″ having the value 0, 1 or 2, with (*) representing the point of attachment of Z or Z′ to the remainder of the molecule; provided that at least one of the coefficients n, n′ or n″ is other than zero, and one or more organic compounds (II) exhibiting a value for the Hansen solubility parameter δH of between 5 and 16 MPa1/2 and with a molecular weight of less than 250 g/mol. It also relates to a dyeing method which consists in applying such a composition to keratinous fibres.
Abstract:
The invention concerns a cosmetic composition for treating keratinous materials comprising in a carrier suitable for keratinous materials: (a) at least an amphiphilic polymer comprising at least an ethylenically unsaturated monomer with sulphonic group, in free form or partly or completely neutralized and further at least a hydrophobic part; (b) at least an oxidizing agent.
Abstract:
The present disclosure relates to a process for lightening or dyeing keratin fibers, for example, human keratin fibers such as the hair, comprising applying to the keratin fibers: (a) an anhydrous cosmetic composition (A) comprising at least one fatty substance and at least one surfactant; (b) a cosmetic composition (B) comprising at least one ammonium salt; and (c) a composition (C) comprising at least one oxidizing agent; when the process is a process for dyeing keratin fibers, said cosmetic composition (B) further comprises at least one oxidation dye and/or at least one direct dye. The present disclosure also relates to a multi-compartment device comprising the disclosed compositions for lightening or dyeing keratin fibers.