Patents by Inventor Christine Rondeau

Christine Rondeau 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: 20030000023
    Abstract: The invention concerns a ready-to-use composition for dyeing keratin fibres, and in particular human keratin fibres such as hair comprising, in an appropriate dyeing medium, at least a direct cationic dye properly selected, and at least a direct nitrated benzene dye, and the dyeing method using said composition.
    Type: Application
    Filed: August 16, 1999
    Publication date: January 2, 2003
    Inventor: CHRISTINE RONDEAU
  • Publication number: 20020184717
    Abstract: Compositions for oxidation dyeing keratin fibers, such as human keratin fibers like hair, comprising, in a dyeing medium, (1) at least one oxidation dye, (2) at least one fatty alcohol comprising more than twenty carbon atoms, (3) optionally at least one fatty alcohol having at most twenty carbon atoms, (4) at least one oxyalkylenated nonionic surfactant with an HLB greater than 5, and (5) optionally at least one oxyalkylenated surfactant with an HLB at most equal to 5, in a proportion such that the weight ratio [(4)]/[(2)+(3)+(5)] is less than or equal to 1:1. Processes comprising such oxidation dyeing compositions.
    Type: Application
    Filed: January 2, 2001
    Publication date: December 12, 2002
    Inventors: Francois Cottard, Christine Rondeau
  • Patent number: 6436153
    Abstract: The invention relates to a direct dye composition for keratin fibers, in particular for human keratin fibers such as the hair, comprising, in a medium which is suitable for dyeing and which is free of oxidases or oxidoreductases, at least one cationic direct dye of given formula and at least one specific polyol and/or polyol ether. Subjects of the invention are also the dyeing processes and devices/kits using the said composition.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: August 20, 2002
    Assignee: L'Oréal S.A.
    Inventor: Christine Rondeau
  • Patent number: 6436151
    Abstract: Compositions for oxidation dyeing keratin fibers, such as human keratin fibers like hair, comprising, in a dyeing medium, (1) at least one oxidation dye, (2) at least one thickening polymer comprising at least one fatty chain, and (3) at least one fatty alcohol comprising more than twenty carbon atoms. Processes comprising such oxidation dyeing compositions.
    Type: Grant
    Filed: January 2, 2001
    Date of Patent: August 20, 2002
    Assignee: L'Oreal S.A.
    Inventors: François Cottard, Christine Rondeau
  • Patent number: 6432146
    Abstract: The invention relates to dyeing compositions comprising a combination of two specific cationic dyes and not containing a self-oxidizing agent, to the use of the compositions as direct dyes in dyeing applications for keratin fibers, and in particular human keratin fibers such as the hair, to direct dyeing processes using the compositions, and to dyeing devices using the compositions.
    Type: Grant
    Filed: January 19, 2000
    Date of Patent: August 13, 2002
    Assignee: L'Oreal S.A.
    Inventor: Christine Rondeau
  • Publication number: 20020046432
    Abstract: The invention relates to a dye composition for keratin fibers, in particular for human keratin fibers such as the hair, this composition having, in a medium suitable for dyeing, at least one cationic direct dye of given formula, and containing at least one specific cationic or amphoteric substantive polymer. The invention also relates to the dyeing processes and devices using it.
    Type: Application
    Filed: April 6, 1999
    Publication date: April 25, 2002
    Inventor: CHRISTINE RONDEAU
  • Publication number: 20020013972
    Abstract: Compositions for oxidation dyeing keratin fibers, such as human keratin fibers like hair, comprising, in a dyeing medium, (1) at least one oxidation dye, and (2) a combination comprising at least one cyclohomopolymer of dialkyldiallylammonium and at least one other particular quaternary polyammonium. Processes comprising such oxidation dyeing compositions.
    Type: Application
    Filed: January 2, 2001
    Publication date: February 7, 2002
    Inventors: Cecile Bebot, Christine Rondeau, Francois Cottard, Francoise Boudy
  • Publication number: 20020010970
    Abstract: Compositions for oxidation dyeing keratin fibers, such as human keratin fibers like hair, comprising, in a dyeing medium, (1) at least one oxidation dye, (2) at least one fatty alcohol comprising more than twenty carbon atoms, (3) optionally at least one fatty alcohol having at most twenty carbon atoms, (4) at least one oxyalkylenated nonionic surfactant with an HLB greater than 5, and (5) optionally at least one oxyalkylenated surfactant with an HLB at most equal to 5, in a proportion such that the weight ratio [(4)]/[(2)+(3)+(5)] is less than or equal to 1:1. Processes comprising such oxidation dyeing compositions.
    Type: Application
    Filed: January 2, 2001
    Publication date: January 31, 2002
    Inventors: Francois Cottard, Christine Rondeau
  • Publication number: 20020004956
    Abstract: The invention relates to a ready-to-use composition for dyeing keratin fibers, and in particular human keratin fibers such as the hair, comprising, in a medium which is suitable for dyeing, at least one suitably selected cationic direct dye and at least one nitrobenzene direct dye, as well as to the dyeing process using this composition.
    Type: Application
    Filed: August 16, 1999
    Publication date: January 17, 2002
    Inventor: CHRISTINE RONDEAU
  • Publication number: 20020002748
    Abstract: The invention relates to a direct dye composition for keratin fibers, in particular for human keratin fibers such as the hair, comprising, in a medium which is suitable for dyeing and which is free of oxidases or oxidoreductases, at least one cationic direct dye of given formula and at least one specific polyol and/or polyol ether. Subjects of the invention are also the dyeing processes and devices/kits using the said composition.
    Type: Application
    Filed: May 28, 1999
    Publication date: January 10, 2002
    Applicant: L'OREAL S.A.
    Inventor: CHRISTINE RONDEAU
  • Publication number: 20010023515
    Abstract: Compositions for oxidation dyeing keratin fibers, such as human keratin fibers like hair, comprising, in a dyeing medium, (1) at least one oxidation dye, (2) at least one thickening polymer comprising at least one fatty chain, and (3) at least one fatty alcohol comprising more than twenty carbon atoms. Processes comprising such oxidation dyeing compositions.
    Type: Application
    Filed: January 2, 2001
    Publication date: September 27, 2001
    Inventors: Francois Cottard, Christine Rondeau
  • Publication number: 20010023514
    Abstract: Compositions for oxidation dyeing of keratin fibers, in particular human keratin fibers such as hair, comprising, in a dyeing medium, at least one oxidation dye, at least one thickening polymer comprising at least one fatty chain and at least one fatty alcohol chosen from monoglycerolated and polyglycerolated fatty alcohols. Processes comprising such oxidation dyeing compositions.
    Type: Application
    Filed: January 2, 2001
    Publication date: September 27, 2001
    Inventors: Francois Cottard, Christine Rondeau
  • Patent number: 6190421
    Abstract: A method for dyeing keratin fibers, particularly human keratin fibers, and more particularly hair. When the method is used, an extemporaneous mixture is applied on the fibers of a composition (A) containing one or more oxidation dye precursors and optionally one or more couplers, of a composition (B), in powder form, containing one or more direct dyes, preferably cationic, optionally dispersed in an organic pulverulent excipient and/or a mineral pulverulent excipient, and a composition (C) containing one or more oxidizing agents. The invention also features a ready-to-use composition of three components (A), (B), and (C) stored separately and mixed at the time of use to be applied on keratin fibers.
    Type: Grant
    Filed: December 15, 1998
    Date of Patent: February 20, 2001
    Assignee: L'Oreal
    Inventors: Christine Rondeau, Nicole Zemori
  • Patent number: 6001135
    Abstract: A ready-to-use composition for the oxidation dyeing of keratin fibers, in particular human keratin fibers such as the hair, this ready-to-use composition comprising at least one oxidation base in combination with at least one selected cationic direct dye and at least one oxidizing agent, as well as to the dyeing process using this ready-to-use composition.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: December 14, 1999
    Assignee: L'Oreal
    Inventors: Christine Rondeau, Jean Cotteret, Roland De La Mettrie
  • Patent number: 5993490
    Abstract: A ready-to-use composition for the oxidation dyeing of keratin fibers, in particular human keratin fibers such as the hair, comprising at least one oxidation base selected from para-phenylenediamines and bis(phenyl)alkylenediamines, in combination with at least one coupler selected from meta-diphenols, at least one selected cationic direct dye and at least one oxidizing agent, as well as to the dyeing process using this composition.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: November 30, 1999
    Assignee: L'Oreal
    Inventors: Christine Rondeau, Jean Cotteret, Roland de la Mettrie
  • Patent number: 5919273
    Abstract: A ready-to-use composition for the oxidation dyeing of keratin fibers, in particular human keratin fibers such as hair, comprising at least one oxidation base in combination with at least one coupler of substituted meta-aminophenol type, at least one cationic direct dye and at least one oxidizing agent, as well as to the dyeing process using this composition.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: July 6, 1999
    Assignee: L'Oreal
    Inventors: Christine Rondeau, Jean Cotteret, Roland de la Mettrie
  • Patent number: 5879412
    Abstract: A ready-to-use composition for the oxidation dyeing of keratin fibers, in particular human keratin fibers such as hair, this composition comprising at least one oxidation base selected from para-phenylenediamines and bis(phenyl)-alkylenediamines, in combination with at least one coupler selected from meta-phenylenediamines, at least one selected cationic direct dye and at least one oxidizing agent, as well as to the dyeing process using this composition.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: March 9, 1999
    Assignee: L'Oreal
    Inventors: Christine Rondeau, Jean Cotteret, Roland de la Mettrie
  • Patent number: 5824296
    Abstract: The invention relates to a hair composition containing, in a cosmetically acceptable medium, a structuring agent insoluble in this medium and formed of solid particles, which imparts a deformable solid appearance to the composition in which the medium is contained, this agent being capable of being removed from the hair using a diluent. This composition may be a shampoo, a conditioner, a composition for dyeing or bleaching keratin fibers or alternatively a composition for permanent-waving or straightening keratin fibers.
    Type: Grant
    Filed: July 11, 1995
    Date of Patent: October 20, 1998
    Assignee: L'Oreal
    Inventors: Claude Dubief, Arnaud De Labbey, Roland De La Mettrie, Christine Rondeau