L'oreal

Societe Anonyme Dite: L'oreal

Quintino Gaetani

Michel Hocquaux

Christos Papantoniou

Bernard Jacquet

Francoise Estradier

Jacqueline Dumats

Didier Dufetel

Alex M Junino

Claude Mahieu

Remy Tuloup

Isabelle Castiel

Albert Duranton

Andre Rougier

Christele Guey

Eric Arbey

Novel ceramide compounds, compositions containing them and the use of these compounds, in particular for strengthening the lipid barrier of the epidermis.

Ceramides, compositions thereof and methods of use thereof

Compositions intended for use for retarding hair loss and for inducing and stimulating its growth, containing 2-aminopyrimidine 3-oxide derivatives, and new compounds derived from 2-aminopyrimidine 3-oxide. Composition for retarding hair loss and for inducing and stimulating its growth, containing at least one compound of formula: ##STR1## where R denotes H, alkyl or a ring of formula: ##STR2## X denotes ##STR3## with: R.sub.1 and R.sub.3 denote H, alkyl, optionally substituted, alkenyl, cycloalkyl, aralkyl or aryl of formula: ##STR4## where R.sub.9 and R.sub.10 denote H, alkyl, hydroxyl, alkoxy or halogen; or form a heterocycle with the nitrogen;

Process for retarding hair loss and for inducing and stimulating its

Composition for retarding hair loss and for inducing and stimulating its growth, containing at least one compound of formula: ##STR1## where R denotes H, alkyl or a ring of formula: ##STR2## X denotes ##STR3## --OR.sub.3, --SR.sub.4 with: the remaining variables defined below in the body of the specification.

Composition intended for use for retarding hair loss and for inducing

Multicomponent agent or kit for preparing the sulpho-conjugated form of pyridino, pyrimidino or triazino N-oxide compounds and method of use. The present invention relates to a multicomponent agent or kit for preparing the sulpho-conjugated form of pyridino, pyrimidino or triazino N-oxide compounds,

Multicomponent agent or kit for preparing the sulpho-conjugated form of

The invention relates to compounds of formula: ##STR1## in which: R.sub.1 and R.sub.2 denote, independently of one another, a hydrogen atom or alternatively a carbamoyl group of formula: ##STR2## with R'.sub.3 denoting hydrogen or R.sub.3 ; an alkoxycarbonyl group of formula: ##STR3## or an acyl group of formula: ##STR4## in which formulae R.sub.3 denotes an alkyl, alkenyl or cycloalkyl radical; R.sub.3 can also denote an aryl or aralkyl radical; and

Halogenated pyrimidine 3-oxide derivatives, their use for the treatment

New 2,4-diaminopyrimidine 3-oxide derivatives and their use for the treatment and the prevention of hair loss. The compounds correspond to the formula: ##STR1## in which: R.sub.1 and R.sub.2 denote hydrogen or the groups of formula: ##STR2## with R'.sub.3 =H or R.sub.3, in which R.sub.3 denotes alkyl, alkenyl or cycloalkyl; R.sub.3 may also denote an aryl or aralkyl radical.

2,4-diaminopyrimidine 3-oxide derivatives and their use for the

A liquid, essentially anhydrous solution of hydrogen peroxide in at least one organic solvent is employed in therapeutic and cosmetic formulations. The solution contains from 1 to 20 weight percent hydrogen peroxide and less than 1 weight percent water. The therapeutic formulation can be used in the treatment of acne, dermatoses, ulcers and in the lightening and disinfection of the skin. The cosmetic formulations can be used in the bleaching or oxidation dyeing of hair or in the neutralization stage of a permanent wave operation or in the straightening of hair.

Anhydrous solution of hydrogen peroxide in an organic solvent and the

A composition for topical application to the skin contains, as a fatty product to provide a nongreasy protective and emollient film thereon, a polyether oligomer having the formula ##STR1## wherein R is alkyl having 1-12 carbon atoms; R.sub.1, R.sub.2, R.sub.3 and R.sub.4 represent hydrogen or alkyl having 1-6 carbon atoms, with at least two of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 being hydrogen; m is 1-4; n has an average value equal to or greater than 2; and the number of carbon atoms in each repetitive unit being at least 4.

Method for producing a non greasy protective and emollient film on the

A colored or colorless nail enamel consists essentially of at least one film forming agent, a resin and a solvent system. The enamel can also contain a plasticizing agent and/or a coloring agent. The resin is polytetrahydrofuran having the formula: HO--CH.sub.2 --CH.sub.2 --CH.sub.2 --CH.sub.2 --O].sub.n H wherein n is such that the average molecular mass is between 300 and 3,000,000.

Nail enamel containing polytetrahydrofuran as a resin

Vinyl acetate and an unsaturated acid are copolymerized in the presence of bis (4-tert. butyl cyclohexyl) peroxydicarbonate. The resulting copolymer which exhibits improved aerosol propellant solubility characteristics is employed in aerosol hair lacquer compositions.

Copolymerization process initiated with bis (4-tert. butyl cyclohexyl)

A process for reducing the volatility and improving the emulsifying power of an unsaturated or saturated cosmetic oil comprising heating the cosmetic oil, in the absence of a solvent and under an inert atmosphere, with a homopolymerizable and hydrophilic monomer in the presence of an initiator generating free radicals. The monomer is selected from the group consisting of N-vinylpyrrolidone, 2-hydroxymethyl acrylate, 2-hydroxymethyl methacrylate, acrylamide, methacrylamide, N-hydroxymethyl acrylamide, N-(carboxyhydroxy) methacrylamide, acrylic acid, methacrylic acid, 2-vinylpyridine, 4-vinylpyridine and a monomer having the formula, ##STR1## wherein R is hydrogen or methyl, Y is O or NH, r' is methyl or ethyl and n is 2 or 3. The resulting modified oil is then purified to remove any insoluble nongrafted homopolymer.

Process for treating cosmetic oils so as to modify their properties and

A hair lacquer or hair setting lotion composition comprises in a cosmetic carrier or vehicle at least one bi- or tri-sequenced copolymer comprising at least one sequence (A) having the formula ##STR1## wherein Y is a saturated hydrocarbon chain containing 2-4 carbon atoms or a hydrocarbon chain containing 2-4 carbon atoms and interrupted by sulfur or oxygen, R.sub.1 and R.sub.2 are alkyl containing 1-4 carbon atoms, n is 0 or 1 and HX is hydrochloric, hydrobromic, lactic or acetic acid, and at least one sequence (B) resulting from the anionic polymerization of a polymerizable monomer.

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Sevran, France

Quintino Gaetani