L'oreal

Societe Anonyme Dite: L'oreal

Centre Internationale De Recherches Dermatologiques (c.i.r.d.)

Christos Papantoniou

Claude Mahieu

Bernard Jacquet

Jean Aulnay Mondet

Pierre Dufaure

Michel Guillon

Guy G Vanlerberghe

Quintino Gaetani

Jean-Claude J Grognet

Claude Mahieux

Claudine Vandenbossche

Jean P Boulogne

Claudine Lapoiriere

Didier Candau

Serge Forestier

Bertrand Piot

Rose-Marie J Handjani

Jean-Claude H Ser

Herve Andrean

Vahan Zorayan

Paul Roussopoulos

Andre Viout

Gerard Land

Annie Madrange Nee Dermain

Hans Schaefer

Francine Watts

Myrian Mellul

Bernard Langla

Rose-Marie Handjani-Vila

Beatrice DeFrossez

Jean-Charles Cheneble

Claudine Lapoiriere Ex Spouse Vandenbossche

Fine dispersion of melanin pigments, its preparation and its use in

A cosmetic composition comprises in solution in an appropriate vehicle at least one polymer having 50-100% of repeating units of the .beta.-alanine type having the formula ##STR1## and 0-50% of repeating units of the acrylamide type having the formula ##STR2## wherein R.sub.1 represents hydrogen or a member selected from the group consisting of ##STR3## (ii) --CH.sub.2 OH, (iii) --(CH.sub.2).sub.n --CH.sub.3 wherein n is 0 or a whole number from 1 to 11, ##STR4## wherein r' and r' each independently represent hydrogen or alkyl having 1-3 carbon atoms, (v) --CHOH--COOH, (vi) --CH.sub.2 --SO.sub.3 Na, ##STR5## wherein m ranges from 1 to 10, and R.sub.2 and R.sub.3 represent hydrogen or methyl.

Cosmetic compositions for the treatment of the hair and skin contain

A cosmetic composition or a support for a cosmetic composition, in the form of a water-in-oil emulsion, contains as a thickening agent, at least one copolymer containing a low or slight amount of units containing ionic groups.

Cosmetic composition containing as a thickening agent a polymer having a

The invention relates to a pharmaceutical or cosmetic composition for topical application, containing, in a suitable carrier, microspheres of polymers or of fatty substances filled with at least one active product, characterized in that at least 80% of the microspheres employed have a diameter of between 3 .mu.m and 10 .mu.m.

Cosmetic or pharmaceutical composition containing microspheres of

A cosmetic composition comprises in solution in an appropriate vehicle at least one polymer having 50-100% of repeating units of the .beta.-alanine type having the formula ##STR1## and 0-50% of repeating units of the acrylamide type having the formula ##STR2## wherein R.sub.1 represents hydrogen or a member selected from the group consisting of (i) ##STR3## (ii) --CH.sub.2 OH, (iii) --(CH.sub.2).sub.n --CH.sub.3 wherein n is 0 or a whole number from 1 to 11, (iv) ##STR4## wherein r' and r' each independently represent hydrogen or alkyl having 1-3 carbon atoms, (v) --CHOH--COOH, (vi) --CH.sub.2 --SO.sub.3 Na, (vii) ##STR5## and (viii) --(CH.sub.2 --CH.sub.2 --O).sub.m H wherein m ranges from 1 to 10, and R.sub.2 and R.sub.3 represent hydrogen or methyl.

A cosmetic composition in the form of an aerosol spray for hair control contains a solvent; a film-forming tetrapolymer resulting from the copolymerization of (a) 5 to 10 wt. % acrylic acid, (b) 20 to 52 wt. % N,N-dimethylacrylamide, (c) 3 to 28 wt. % of N-tert-butylacrylamide, and (d) 20 to 45 wt. % ethyl methacrylate, the carboxylic acid functions of the tetrapolymer being at least partially neutralized with a mineral or organic base; and at least one non-halogen propellant gas. This spray provides excellent hair control, and the film-forming substance does not cause stickiness of the hair over time and is easily eliminated by washing with a shampoo.

Aerosol hair spray containing a tetrapolymer of acrylic acid,

A one-step process for preparing cross-linked poly-.beta.-alanine as microspheres having narrow size distribution comprises polymerizing acrylamide with a polyfunctional compound copolymerizable with acrylamide (with the polyfunctional compound also acting as the cross-linking agent) in an organic solvent or a mixtured such solvents in the presence of an ionic polymerization initiator and a suspension agent. The resulting microspheres may be impregnated with a pharmaceutically or cosmetically active substance.

One step process for preparing cross-linked poly-.beta.-alanine

This nitrocellulose-free varnish contains at least one resin in a solvent system for varnishes, and is characterized in that the said resin is a copolymer containing units resulting from the copolymerization:

Anhydrous nail varnishes

An anhydrous cosmetic makeup composition for the lips and skin contains crosslinked poly .beta.-alanine microspheres impregnated with a polyhydric alcohol.

Cosmetic makeup compositions containing crosslinked poly .beta.-alanine

A process for preparing crosslinked poly .beta.-alanine in the form of microspheres comprises (a) polymerizing acrylamide in a tert. butanol/toluene solvent mixture in the presence of a polymerization initiator and an octadecene-maleic anhydride copolymer as a suspension agent; (b) submitting the resulting suspension of poly .beta.-alanine to a crosslinking reaction using a dialdehyde as the crosslinking agent; and (c) isolating the crosslinked poly .beta.-alanine microspheres. These microspheres exhibit a low size dispersity.

Process for the preparation of crosslinked poly .beta.-alanine in the

A means of reinforcing and/or mechanically deforming human hair, comprising a first stage in which the hair undergoes the action of a reducing agent so as to break the disulfide linkages of the keracystine to form thiol groups, followed by the application in a second stage of a modifying agent encouraging the establishment of new chemical linkages to the thiol groups, characterized in that the aforesaid modifying agent is a polyhaloacetylated polymer whose halogen atom is capable of reacting with thiol groups.

Method for reinforcement or permanent deformation of hair

A cosmetic composition for improving the suppleness of the skin or hair and for protecting the keratin of the skin or hair from degradation by atmospheric agents or light comprises in a cosmetic or dermatologic acceptable vehicle a saturated condensate resulting from the polyaddition of a bis-acrylamide and a sterically hindered primary diamine, the condensate being saturated by hydrogenation or by addition of a thiol or an amine on the double bonds of the acrylamide residue.

Cosmetic composition containing an amide-amine type condensate, and a

A water insoluble crosslinked poly .beta.-alanine is prepared by crosslinking poly .beta.-alanine with a crosslinking agent selected from the group consisting of formaldehyde and a dialdehyde or by irradiation of said poly .beta.-alanine with Co.sup.60.

Crosslinked poly .beta.-alanine and compositions containing the same

A composition and process for setting hair comprises impregnating the hair with a composition containing in solution in a cosmetic vehicle at least one water-soluble polymer containing at least 5% of units having a primary amide function, a crosslinking agent and an acid catalyst. The hair is then placed on hair-setting rollers and dried by means of an external heat source. The hair rollers are then removed.

Process and composition for setting the hair

A cosmetic composition contained in a suitable carrier comprising at least one copolymer of acrylic or methacrylic acid, an alkyl acrylate and/or methacrylate and an allyl derivative having repetitive units which correspond to the following formulae: ##STR1## wherein: R.sub.1 and R.sub.2 constitute a hydrogen atom or a methyl radical,

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Montmorency, France

Christos Papantoniou