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    Online Exclusives

    Patent News at L’Oréal

    Skin regimen with dehydroascorbic acid, compositions with improved SPF, latex nail formula, mascaras and more.

    Patent News at L’Oréal
    L'Oréal Chevilly LaRue Lab
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    05.11.17
    Dehydroascorbic Acid for Artificially Coloring the Skin
    US Patent No. 9,643,032 B2: L'Oréal, Paris, has patented a regimen for artificially coloring the skin that entails topically applying onto the skin a composition containing an   effective amount of dehydroascorbic acid and/or a monomeric derivative thereof of formula (I) and/or an isomer thereof of formula (I′)  and/or a polymer derivative thereof:
     


     



















    in which OR1 and OR2, which may be identical or different, are each OH; a linear or branched, saturated or unsaturated C1-C30 alkoxy radical; a glycoside; a linear or branched, saturated or unsaturated C1-C30 aliphatic carboxylic acid ester, which may be substituted with an aryl group or a heterocycle; an aryl or heterocyclic carboxylic acid ester which may be substituted with at least one linear or branched, saturated or unsaturated C1-C30 alkyl radical; a phosphate group; a sulfate group, and also polymeric derivatives thereof, formulated into a topically applicable physiologically acceptable medium therefor; wherein the dehydroascorbic acid and/or a monomeric derivative thereof of formula (I) and/or an isomer thereof of formula (I′) and/or a polymer derivative thereof is combined with ascorbic acid or a derivative or salt thereof.
     
     
    Compositions Having Improved SPF 
    US Patent No. 9,642,791 B2: L'Oréal, Paris, has patented a composition comprising at least one sunscreen active agent and at least one oil dispersion of acrylic polymer particles that comprises a C1-C4 alkyl (meth)acrylate polymer and at least one stabilizer selected from the group consisting of isobornyl (meth)acrylate homopolymers and statistical copolymers of isobornyl (meth)acrylate and of C1-C4 alkyl (meth)acrylate present in an isobornyl (meth)acrylate/C1-C4 alkyl (meth)acrylate weight ratio of greater than 4. The  oil dispersion is present in an amount effective to increase SPF of the composition.
     
    Mascara Patents  
    US Patent No. 9,622,958 B2: L’Oréal, Paris, has patented a mascara composition that contains styrene/acrylate in the form of a latex film forming polymer having a glass transition temperature from about -15°C. to about 90°C; C30+olefin/undecylenic acid copolymer; at least one organic solvent selected from the group consisting of isodecane, isododecane and isohexadecane; water; and pigment.
     
    US Patent No 9,636,294 B2: L'Oréal, Paris, has patented a mascara composition that is comprised of at least one olefin/acrylate grafted polymer; and at least one styrene/acrylates copolymer. The ratio of a weight amount of the olefin/acrylate grafted polymer to a weight amount of the styrene/acrylates copolymer is from 1:3 to 4:1.
     
     
    Latex Nail Composition with Low Amounts of Photo-Initiator
    US Patent No. 9,636,293 B2: L'Oréal, Paris, has patented a  cosmetic composition for application to the nails comprising  at least one photo-curable polymer dispersed in water; at least one non-photo-curable polymer dispersed in water; at least one photo-initiator; at least one plasticizer; optionally a colorant; and water. The photo-curable polymer dispersed in water   is selected from an aliphatic urethane acrylic copolymer, an aliphatic anionic polyurethane dispersion, an aromatic polyurethane dispersion, and mixtures thereof.
     
    Depilatory Compositions
    US Patent No. 9,642,783 B2: L'Oréal, Paris, has patented a powder composition comprising at least one hydroxide-containing compound selected from the group consisting of alkali metal hydroxides, alkaline-earth metal hydroxides, transition metal hydroxides, and mixtures thereof; at least two carbonate compounds selected from the group consisting of calcium carbonate, lithium carbonate, sodium carbonate, potassium carbonate, guanidine carbonate, and mixtures thereof; at least one starch material; at least one silica material; at least one liquid fatty substance selected from the group consisting of C6-C16 alkanes, non-silicone oils of plant, mineral or synthetic origin, liquid fatty alcohols, liquid fatty acids and liquid esters of a fatty acid and/or of a fatty alcohol, and mixtures thereof; at least one acrylic polymer; at least one sulfur-containing compound selected from the group consisting of calcium thioglycolate, potassium thioglycolate, sodium thioglycolate, ammonium thioglycolate, strontium thioglycolate, magnesium thioglycolate, diammonium dithiodiglycolate, 2-methoxyethyl thioglycolate, 2-ethoxyethyl thioglycolate, 2-ethoxypropyl thioglycolate, methyl thioglycolate, ethyl thioglycolate, butyl thioglycolate, isooctyl thioglycolate, isopropyl thioglycolate, guanidine thioglycolate, glyceryl monothioglycolate, monoethanolamine thioglycolate, monoethanolamine thioglycolic acid, diammoniumdithiodiglycolate, dithioerythritol, thioglycerol, thioglycol, thioxanthine, thiosalicylic acid, N-acetyl-L-cysteine, lipoic acid, sodium dihydrolipoate 6,8-dithioocatanoate, sodium 6,8-diothioocatanoate, a hydrogen sulphide salt, thioglycolic acid, 2-mercaptopropionic acid, 3-mercaptopropionic acid, thiomalic acid, ammonium thiolactate, monoethanolamine thiolactate, thioglycolamide, homocysteine, cysteine, glutathione, dithiothreitol, dihydrolipoic acid, 1,3-dithiopropanol, thioglycolamide, glycerylmonothioglycolate, thioglycolhydrazine, keratinase, cysteamine, and mixtures thereof; and at least one chelant compound.

    Want to see more from L'Oréal? Here's a short video from the beauty giant about its 2016 innovations.

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