L'oreal

Societe Anonyme Dite: L'oreal

Alexandre Zysman

Henri Sebag

Guy G Vanlerberghe

Jean-Francois Grollier

Alain J Ribier

Claude Mahieu

Didier Semeria

Claude Berthelot

Claude Dubief

Rose-Marie J Handjani

The invention relates to ceramides of formula: ##STR1## where R.sub.1 denotes a C.sub.11 to C.sub.21 alkyl or alkenyl radical; R.sub.2 denotes a C.sub.11 -C.sub.19 hydrocarbon radical, which is linear and carries one or more ethylenic unsaturations, and in particular one or two, or a mixture of C.sub.11 -C.sub.19 hydrocarbon radicals, which are linear, saturated or carry one or more ethylenic unsaturations, and in particular one or two, in which the proportion of saturated radicals cannot exceed 35%, these compounds being in the form of a racemic mixture of the erythro and threo diastereoisomers in the erythro:threo proportions of 85:15 to 60:40. The invention also relates to the process for preparing the compounds as well as their applications in the cosmetic and dermopharmaceutical fields.

Ceramides, process for their preparation and their applications in the

##STR1## Non-ionic amphiphilic, glycerol-derived compounds having formula (I), where R is a radical selected from the group consisting of C.sub.4-28 branched or linear alkenyl or alkyl radicals or mixtures thereof, or is a --CH.sub.2 A grouping in which A is --OR', --SR, (II) where R' is a saturated or unsaturated hydrocarbonated radical and n represents an average statistical value n greater than 1 and equal to or less than 6; and, when R' is a --CH.sub.2 A radical, n is also 2. These compounds are surface-active agents and some may form vesicles.

Nonionic amphiphilic compounds derived from glycerol, a process for

Triglycerol alkylcarbamates, their preparation and their use as

Cosmetic, dermo-pharmaceutical or vesicle-containing composition

Composition for promoting healing containing, as a healing agent, nonionic vesicles obtained from a lipid mixture containing at least one nonionic lipid having the formula; ##STR1## wherein R is either at least one C.sub.16 -C.sub.18 radical, or R'CO wherein R' is at least one C.sub.15 -C.sub.17 alkyl radical, in combination with cholesterol and, optionally, dicetylphosphate or tetracetylphospate. This composition can be used topically to accelerate the scarring of wounds.

Composition for promoting healing

The invention relates to a lipid compound of formula (I): ##STR1## where R.sub.1 denotes a C.sub.11 to C.sub.21 alkyl or alkenyl radical and R.sub.2 denotes a linear or branched C.sub.8 to C.sub.30 hydrocarbon radical, saturated or bearing one or more ethylenically unsaturated bonds, and also to a process for preparing it and to compositions for cosmetic use or pharmaceutical use for skin conditions containing this compound.

Lipid compounds derived from sphingosines, process for preparing these

The invention relates to compounds of formula: ##STR1## in which m, n, p and q are equal to 0 or 1, p being different from q and the sum m+n+p+q being equal to 2, A denotes a nonionic chain arrangement chosen from the groups:

New hemiacetal compounds and the applications thereof

The invention relates to a lipid compound of formula (I): ##STR1## where R.sub.1 denotes a C.sub.11 to C.sub.21 alkyl or alkenyl radical and R.sub.2 denotes a linear or branched C.sub.8 to C.sub.30 hydrocarbon radical, saturated or bearing one or more ethylenically unsaturated bonds, and also to a process for preparing it and to compositions for cosmetic use of pharmaceutical use for skin conditions containing this compound.

Amphiphilic lipid compound having the formula: ##STR1## in which: R.sub.1 denotes a C.sub.7 -C.sub.21 alkyl or alkenyl radical,

Amphiphilic lipid compounds, process for their preparation and their

Hemiacetal compounds and the applications thereof

4-Hydroxyisoxazole derivatives corresponding to the formula: ##STR1## wherein: R represents a linear or branched alkyl or hydroxyalkyl radical with 1 to 23 carbon atoms, a linear or branched alkenyl radical with 2 to 23 carbon atoms, a phenyl radical, or a benzyl radical, and

4-hydroxyisoxazole derivatives, method of preparing same, and cosmetic

Quaternary siloxane polymers of the formula: ##STR1## in which A denotes an .alpha.,.beta.-bis-alkylpolysiloxane or a C.sub.1-6 hydrocarbon chain which can contain OH groups and can be interrupted by one or more oxygen atoms and/or aromatic rings; R.sub.1, R.sub.2, R.sub.3 and R.sub.4, which are identical or different, denote a C.sub.1 -C.sub.6 alkyl or phenyl; R.sub.5 =methyl, ethyl or --CH.sub.2 --; R.sub.6 =C.sub.1 -C.sub.18 alkyl or --CH.sub.2 --; if R.sub.5 and/or R.sub.6 denote --CH.sub.2 --, they form a methylpiperazinium radical or ethylpiperazinium radical, a diethylenediamine radical or a heterocycle with --N--A--N--; Y denotes one of the anions Cl.sup.-, Br.sup.-, CH.sub.3 SO.sub.3.sup.-, ##STR2## m=1-6; and p=1-50 are disclosed for use, in particular, for treating the hair, nails and skin. They are resistant to several rinses on these substrates.

Growing community of inventors

Paris, France

Alexandre Zysman