Patents by Inventor Gwenaelle Jegou

Gwenaelle Jegou has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20140023607
    Abstract: The present disclosure relates to novel ethylenic copolymers comprising from 10% to 80% by weight, of at least one monomer of polyethylene glycol (meth)acrylate type, from 20% to 90% by weight, of at least one anionic monomer, and from 0% to 70% by weight, at least one additional nonionic hydrophilic monomer. The disclosure also relates to a composition, such as cosmetic or pharmaceutical compositions, comprising the copolymers and to a method of using the same.
    Type: Application
    Filed: September 27, 2013
    Publication date: January 23, 2014
    Applicant: L'OREAL
    Inventors: Nathalie Mougin, Gwenaelle Jegou
  • Publication number: 20140023608
    Abstract: The present disclosure relates to novel ethylenic copolymers comprising from 10% to 80% by weight, of at least one monomer of polyethylene glycol (meth)acrylate type, from 20% to 90% by weight, of at least one anionic monomer, and from 0% to 70% by weight, at least one additional nonionic hydrophilic monomer. The disclosure also relates to a composition, such as cosmetic or pharmaceutical compositions, comprising the copolymers and to a method of using the same.
    Type: Application
    Filed: September 27, 2013
    Publication date: January 23, 2014
    Applicant: L'OREAL
    Inventors: Nathalie Mougin, Gwenaelle Jegou
  • Patent number: 8178079
    Abstract: The invention relates to novel ethylene copolymers comprising 10-60% polyethylenglycol (meth)acrylate monomers and 40-90% substantially cationic monomer. Compositions, in particular cosmetic or pharmaceutical compositions, containing the inventive copolymers and a cosmetic treatment method using said copolymers are also disclosed.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: May 15, 2012
    Assignee: L'Oreal S.A.
    Inventors: Nathalie Mougin, Gwenaëlle Jegou
  • Publication number: 20120070399
    Abstract: The present invention relates to novel ethylenic copolymers comprising: a) from 25 to 95% by weight of monomer of formula (I), comprising PEG units; b) from 4 to 50% by weight of cationic monomer or one of its salts; c) from 1 to 35% by weight of anionic monomer and/or its salts. The invention also relates to cosmetic compositions, in particular hair compositions, comprising said copolymers and to a cosmetic treatment method employing them.
    Type: Application
    Filed: March 11, 2010
    Publication date: March 22, 2012
    Applicant: L'OREAL
    Inventor: Gwenaelle Jegou
  • Publication number: 20100172858
    Abstract: One subject of the present invention is a cosmetic composition for treating keratinous fibres, in particular human keratinous fibres such as the hair, which comprises at least one polymer obtained from dielectrophilic monomers. The composition of the invention makes it possible to give the hair body, bulk or volume in a long-lasting fashion. Another subject of the invention is use of the cosmetic composition for treating keratinous fibres, especially conditioning and/or dyeing keratinous fibres.
    Type: Application
    Filed: December 20, 2007
    Publication date: July 8, 2010
    Inventors: Gwenaëlle Jegou, Nathalie Mougin
  • Publication number: 20100166844
    Abstract: The present patent application relates to novel dispersions of particles of polymer stabilized at the surface in a nonaqueous medium, in which dispersions the polymer comprises mainly hydrophilic cationic monomers. Another subject-matter of the invention is a cosmetic or pharmaceutical composition comprising the said dispersion in a cosmetically or pharmaceutically acceptable medium. The invention also relates to a method for the cosmetic treatment of keratinous substances employing the said composition.
    Type: Application
    Filed: February 12, 2008
    Publication date: July 1, 2010
    Inventors: Nathalle Mougin, Gwenaëlle Jegou
  • Publication number: 20100092416
    Abstract: The present invention relates to a cosmetic treatment method for keratin materials, especially the hair, comprising the application of a cosmetic composition which comprises a polymer having a polymer backbone comprising amino acid monomer units with cationic function, and comprising hydrophilic grafts bonded covalently to said backbone, over all or part of said backbone, said hydrophilic grafts comprising the repetition of at least two hydrophilic monomer units of formula —CH2—CH2—O—.
    Type: Application
    Filed: February 18, 2008
    Publication date: April 15, 2010
    Inventors: Gustavo Luengo, Gwenaëlle Jegou, Philippe Barbarat, Michel Philippe
  • Publication number: 20100061953
    Abstract: The present invention relates to a cosmetic treatment method for keratin materials, especially the hair, comprising the application of a cosmetic composition which comprises a polymer having a polymer backbone comprising amino acid monomer units with cationic function, and comprising hydrophilic grafts bonded covalently to said backbone, over all or part of said backbone. The invention likewise relates to a cosmetic composition comprising said polymer and a cosmetically acceptable medium.
    Type: Application
    Filed: February 12, 2008
    Publication date: March 11, 2010
    Inventors: Gustavo Luengo, Gwenaëlle Jegou, Philippe Barbarat, Michel Philippe
  • Publication number: 20090297464
    Abstract: The present patent application relates to a cosmetic haircare process comprising the use of a least one crosslinked polyrotaxane on the hair, the use of at least one crosslinked polyrotaxane on the hair possibly corresponding to the application to the hair of a cosmetic composition comprising at least one crosslinked polyrotaxane, or to the application to the hair of a cosmetic composition comprising at least one noncrosslinked polyrotaxane and to the crosslinking of the polyrotaxane(s) on the hair. The patent application also relates to an aqueous or anhydrous cosmetic haircare composition comprising at least one crosslinked polyrotaxane and at least one cosmetic adjuvant, and also to the uses of this composition in haircare.
    Type: Application
    Filed: June 8, 2006
    Publication date: December 3, 2009
    Inventor: Gwenaëlle Jegou
  • Publication number: 20090202465
    Abstract: The invention relates to an ethylene cationic polymer comprising at least one primary, secondary or tertiary protonable amine function which is at least partially neutralised by a polymer organic acid neutralising agent which contains at least one carboxylic, sulphonic and/or phosphonic acid function. Said invention also relates to a cosmetic or pharmaceutical composition comprising said neutralised polymer in a physiologically acceptable medium, in particular, cosmetically or pharmaceutically acceptable medium. A method for cosmetically treating keratinic materials, such as a body of face skin, nails, hairs, eyebrows and/or eyelashes, consisting in applying the inventive cosmetic composition to said keratinic materials is also disclosed.
    Type: Application
    Filed: June 30, 2006
    Publication date: August 13, 2009
    Inventors: Nathalie Mougin, Gwenaelle Jegou
  • Publication number: 20080313821
    Abstract: Disclosed herein is a cosmetic process for wash-protecting the color of artificially dyed keratin fibers, comprising applying to the keratin fibers at least one composition comprising at least one multi-carbosite, multi-group coupling agent, the coupling agent being an electrophilic hydrocarbon-based compound comprising neither an aldehyde group, nor a carboxylic acid group, nor a formol-generating group, the coupling agent comprising at least two identical reactive groups, the reactive groups not being carried by the same atom, if said atom is a carbon atom, and the coupling agent having a molecular weight of less than 500 g/mol.
    Type: Application
    Filed: April 30, 2008
    Publication date: December 25, 2008
    Inventors: Boris Lalleman, Franck Giroud, Gwenaelle Jegou
  • Publication number: 20080311066
    Abstract: The invention relates to cosmetic compositions comprising: A) at least one anionic surfactant and at least one nonionic surfactant, and B) at least one ethylenic copolymer comprising, as a weight percentage relative to the total weight of the polymer: a) 10-60% by weight of one or more monomers of formula (I) as defined below; b) 40-90% by weight of at least one “essentially cationic” monomer chosen from: (i) one or more cationic monomers of formula (IIa), (ii) one or more amphoteric monomers of formulae (IIc) and (IId), and (iii) a mixture of one or more cationic monomers of formula (IIa) with one or more anionic monomers chosen from maleic anhydride and/or those of formula (IIb); and/or with one or more amphoteric monomers chosen from those of formulae (IIc) and (IId), c) and optionally 0-50% by weight of nonionic hydrophilic monomers, excluding methyl acrylate, methyl methacrylate and isopropyl acrylate if they are present in an amount of greater than or equal to 10% by weight.
    Type: Application
    Filed: July 1, 2005
    Publication date: December 18, 2008
    Applicant: L'ORÉAL
    Inventors: Henri Samain, Laurence Paul, Gwenaelle Jegou
  • Publication number: 20080292577
    Abstract: The invention concerns novel ethylene copolymers comprising polyethylene glycol (meth)acrylate monomers, cationic monomers, and optionally amphoteric, anionic and/or hydrophilic nonionic monomers, neutralized by particular neutralizing agents. The invention also concerns composition in particular cosmetic or pharmaceutical comprising said copolymers, as well as methods for preparing said copolymers, and cosmetic treatment methods using same.
    Type: Application
    Filed: July 1, 2005
    Publication date: November 27, 2008
    Applicant: L'OREAL
    Inventors: Nathalie Mougin, Gwenaëlle Jegou
  • Publication number: 20080014154
    Abstract: The invention relates to novel ethylene copolymers comprising 10-60% polyethylenglycol(meth)acrylate monomers and 40-90% substantially cationic monomer. Compositions, in particular cosmetic or pharmaceutical compositions, containing the inventive copolymers and a cosmetic treatment method using said copolymers are also disclosed.
    Type: Application
    Filed: July 1, 2005
    Publication date: January 17, 2008
    Inventors: Nathalie Mougin, Gwenaelle Jegou
  • Publication number: 20070253927
    Abstract: The present disclosure relates to novel compositions for the cosmetic treatment of keratinous fibers, such as the hair, comprising, in a cosmetically acceptable medium, at least one dielectrophile monomer and at least one radical initiator. The disclosure also relates to processes for the treatment of keratinous fibers comprising the composition. The composition in accordance with the present disclosure may makes it possible, when it is applied to keratinous fibers, such as the hair, to obtain a sheathing exhibiting an improved resistance to external agents.
    Type: Application
    Filed: April 13, 2007
    Publication date: November 1, 2007
    Inventors: Gwenaelle Jegou, Nathalie Mougin
  • Publication number: 20070224151
    Abstract: The present invention relates to a cosmetic composition comprising, in a physiologically acceptable medium: at least one fatty phase, and at least one block copolymer of rod-coil type comprising at least one coil polymeric block structure with a variable conformation covalently bonded to at least one rod polymeric block structure with a restricted conformation.
    Type: Application
    Filed: May 12, 2005
    Publication date: September 27, 2007
    Applicant: L'OREAL
    Inventors: Nathalie Mougin, Gwenaelle Jegou
  • Publication number: 20070172505
    Abstract: The present invention relates to a cosmetic composition comprising, in a physiologically acceptable medium: at least one aqueous phase, at least one preservative, and at least one block copolymer of rod-coil type comprising at least one coil polymeric block structure with a variable conformation covalently bonded to at least one rod polymeric block structure with a restricted conformation.
    Type: Application
    Filed: May 12, 2005
    Publication date: July 26, 2007
    Applicant: LOREAL
    Inventors: Nathalie Mougin, Gwenaelle Jegou
  • Publication number: 20070081954
    Abstract: The present patent application relates to novel dispersions of particles of a polymer which is stabilized at the surface, in a nonaqueous medium, in which dispersions the polymer exhibits a specific glass transition temperature. Another aspect of the present disclosure is a cosmetic or pharmaceutical composition comprising the said dispersion in a cosmetically or pharmaceutically acceptable medium. The present disclosure also relates to a method for the cosmetic treatment of keratinous substances employing the presently disclosed composition.
    Type: Application
    Filed: October 5, 2006
    Publication date: April 12, 2007
    Inventors: Nathalie Mougin, Gwenaelle Jegou, Franck Giroud, Henri Samain
  • Publication number: 20060018863
    Abstract: The present disclosure relates to novel ethylenic copolymers comprising from 10% to 80% by weight, of at least one monomer of polyethylene glycol (meth)acrylate type, from 20% to 90% by weight, of at least one anionic monomer, and from 0% to 70% by weight, at least one additional nonionic hydrophilic monomer. The disclosure also relates to a composition, such as cosmetic or pharmaceutical compositions, comprising the copolymers and to a method of using the same.
    Type: Application
    Filed: July 13, 2005
    Publication date: January 26, 2006
    Inventors: Nathalie Mougin, Gwenaelle Jegou