Patents by Inventor Alain Genet

Alain Genet 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).

  • Use of cationic phenyl-azo-benzene compounds for dyeing keratin fibers, dye compositions and dyeing processes
    Patent number: 6458167
    Abstract: The invention relates to dyeing compositions containing phenyl-azo-benzene compounds comprising at least one cationic group Z, Z being chosen from quaternized aliphatic chains, aliphatic chains comprising at least one quaternized saturated ring and aliphatic chains comprising at least one quaternized unsaturated ring, to the use of such compositions as direct dyes in dyeing applications for keratin substances, in particular human keratin fibers and especially the hair, and to the direct dyeing processes employing these compositions.
    Type: Grant
    Filed: January 18, 2000
    Date of Patent: October 1, 2002
    Assignee: L'Oreal S.A.
    Inventors: Alain Genet, Alan Lagrange
  • Cationic compounds, their use as coupling agents for oxidation dyeing of keratinous fibers, dyeing compositions and dyeing methods
    Patent number: 6451068
    Abstract: The invention concerns novel di-benzene compounds comprising at least one cationic group Z, Z being selected among quatemized aliphatic chains, aliphatic chains comprising at least a quatemized saturated cycle, and aliphatic chains comprising at least a quaternized unsaturated cycle, their use as coupling agents in oxidation dyeing of keratinous fibres, dyeing compositions containing same and oxidation dyeing methods using same.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: September 17, 2002
    Assignee: L'Oréal S.A.
    Inventors: Alain Genet, Alain Lagrange
  • Cationic aminoanthraquinones, their use for dyeing keratinous fibers, dyeing compositions containing them and methods of dyeing
    Patent number: 6437149
    Abstract: Cationic aminoanthraquinones in which at least one cationic charge is delocalized on a 5-membered unsaturated polynitrogen-containing heterocycle, their use as a direct dye in dyeing compositions for keratinous materials, in particular for human keratinous fibers such as hair, dyeing compositions containing them, and dyeing methods using these compositions.
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: August 20, 2002
    Assignee: L'Oreal S.A.
    Inventors: Alain Genet, Alain Lagrange
  • Oxidation dyeing compositions containing a cationic coupling agent, novel cationic coupling agents
    Patent number: 6419711
    Abstract: The invention concerns an oxidation dyeing composition for keratinous fibers containing at least a monobenzene coupling agent including at least a cationic group Z bearing at least a cyclized or non-cyclized quaternary ammonium unit, the use of said coupling agents for dyeing keratinous fibers, dyeing methods using same, and novel monobenzene coupling agents comprising at least a cationic group Z bearing at least a cyclized or non-cylized quaternary ammonium.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: July 16, 2002
    Assignee: L'Oreal
    Inventors: Alain Genet, Alain Lagrange
  • Cationic di-methylenedioxy-benzenes, their use for oxidation dyeing of keratin fibres
    Patent number: 6402791
    Abstract: The subject of the invention is novel dimethylenedioxybenzenes comprising at least one cationic group Z, Z being chosen from quaternized aliphatic chains, aliphatic chains comprising at least one quaternized saturated ring, and aliphatic chains comprising at least one quaternized unsaturated ring, their use as oxidation dye precursor for the oxidation dyeing of keratinous fibres, dyeing compositions containing them, as well as the oxidation dyeing methods using them.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: June 11, 2002
    Assignee: L'Oreal S.A.
    Inventors: Alain Genet, Alain Lagrange
  • Cationic monobenzenic dyes, their use for the oxidation-dyeing of keratin fibers, dye compositions and dyeing processes
    Patent number: 6383230
    Abstract: The invention relates to novel monobenzenic dyes including at least one cationic group Z, Z chosen from quaternized aliphatic chains, aliphatic chains including at least one quaternized saturated ring and aliphatic chains including at least one quaternized unsaturated ring, to their use as oxidation-dye precursors for the oxidation-dyeing of keratin fibers, to dye compositions containing them and to oxidation-dyeing processes using them.
    Type: Grant
    Filed: January 18, 2000
    Date of Patent: May 7, 2002
    Assignee: L'Oreal
    Inventors: Alain Genet, Alan Lagrange
  • Cationic compounds, their use for the oxidation dyeing of keratin fibres, dye compositions and dyeing processes
    Patent number: 6379398
    Abstract: Dibenzenic ortho-phenylenediamines comprising at least one cationic group Z, Z being chosen from quaternized aliphatic chains, aliphatic chains comprising at least one quaternized saturated ring, and aliphatic chains comprising at least one quaternized unsaturated ring, to their use as oxidation base, coupler or autooxidizable dye for the oxidation dyeing of keratin fibers, to dye compositions containing them, and to oxidation dyeing processes using them.
    Type: Grant
    Filed: September 1, 1999
    Date of Patent: April 30, 2002
    Assignee: L'Oreal
    Inventors: Alain Genet, Alain Lagrange
  • Cationic ortho-phenylenediamines, their use for the oxidation dyeing of keratin fibers, dye compositions and dyeing processes
    Patent number: 6340371
    Abstract: Monobenzenic ortho-phenylenediamines comprising at least one cationic group Z, Z being chosen from aliphatic chains, comprising at least one quaternized unsaturated ring, to their use for the oxidation dyeing of keratin fibers, to dye compositions containing them and to oxidation dyeing processes using them.
    Type: Grant
    Filed: September 1, 1999
    Date of Patent: January 22, 2002
    Assignee: L'Oreal S.A.
    Inventors: Alain Genet, Alain Lagrange
  • CATIONIC AMINODIANTHRAQUINONES, USE, DYEING COMPOSITIONS CONTAINING THEM AND METHODS OF DYEING
    Publication number: 20010049848
    Abstract: The invention relates to cationic aminodianthraquinones containing at least one cationic group Z, Z being chosen from quaternized aliphatic chains, aliphatic chains containing at least one quaternized saturated ring and aliphatic chains containing at least one quaternized unsaturated ring, their use as direct dye in compositions for dyeing keratinous materials, in particular human keratinous fibers such as hair, the dyeing compositions containing them, as well as the dyeing methods using them.
    Type: Application
    Filed: November 29, 1999
    Publication date: December 13, 2001
    Inventors: ALAIN GENET, ALAIN LAGRANGE
  • Method for the synthesis of 2-hydroxyalkyl-para-phenylenediamines, new 2-hydroxyalkyl-para-phenylenediamines, their use for oxidation dyeing, dyeing compositions and methods of dyeing
    Patent number: 6306179
    Abstract: The present invention relates to a new method for the synthesis of 2-hydroxyalkyl-para-phenylenediamines which are substituted or unsubstituted at the 5-position of the benzene ring, new 2-hydroxyalkyl-para-phenylenediamines which are substituted or unsubstituted at the 5-position of the benzene ring, their use for the oxidation dyeing of keratinous fibers, the dyeing compositions containing them, as well as the methods of dyeing using them.
    Type: Grant
    Filed: October 22, 1998
    Date of Patent: October 23, 2001
    Assignee: L'Oreal S.A.
    Inventors: Alain Genet, Alain Lagrange
  • Assembly for the distribution of a pharmaceutical solution in a multi-dose vial into single-dose capsules for single use
    Patent number: 6277091
    Abstract: Assembly for the distribution of a pharmaceutical solution, contained in multi-dose vial, into single-dose carpules for single use, comprising single-dose carpules and a distribution apparatus, in which assembly pressure and suction means are provided to circulate a liquid from the carpules to the vial and from the vial to the carpules, by means of a network of channels.
    Type: Grant
    Filed: November 4, 1996
    Date of Patent: August 21, 2001
    Assignee: Pasteur Merieux Serums & Vaccins
    Inventor: Alain Genet
  • Cationic oxidation bases, their use for oxidation dyeing of keratin fibres, dyeing compositions and dyeing methods
    Patent number: 6270533
    Abstract: The invention relates to novel dibenzene oxidation bases containing at least one cationic group Z, Z being chosen from quaternized aliphatic chains, aliphatic chains containing at least one quaternized saturated ring and aliphatic chains containing at least one quaternized unsaturated ring, to their use for the oxidation dyeing of keratin fibres, to dye compositions containing them and to oxidation dyeing processes using them.
    Type: Grant
    Filed: June 7, 1999
    Date of Patent: August 7, 2001
    Assignee: L'Oreal S.A.
    Inventors: Alain Genet, Alain Lagrange
  • 2-nitro-para-phenylenediamines substituted by sulphur in the 5-position, the process for their preparation, dyeing compositions in which they are present and their use in the dyeing of keratin fibers
    Patent number: 5874618
    Abstract: Novel nitrobenzene compounds of the nitroparaphenylene-diamine type substituted by sulphur in the 5-position are disclosed. These compounds are intended especially for the dyeing of keratin fibers and in particular human hair. A process for their preparation, dyeing compositions in which these compounds are present and a dyeing process in which these compositions are used are also disclosed.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: February 23, 1999
    Assignee: L'Oreal
    Inventors: Alain Lagrange, Alain Genet
  • Hydroxypropylated 2-nitro-p-phenylenediamines, and compositions for dyeing keratinous fibers which contain hydroxypropylated 2-nitro-p-phenylenediamines
    Patent number: 5792221
    Abstract: A hydroxypropylated 2-nitro-p-phenylenediamine of formula (I), wherein R1 is a C1-4 alkyl, .beta.-hydroxyethyl, .beta.-hydroxypropyl or .gamma.-hydroxypropyl radical; R2 and R3 independently represent a .beta.-hydroxyethyl, .beta.-hydroxypropyl, .gamma.-hydroxypropyl or .beta.,.gamma.-dihydroxypropyl radical, with the proviso that at least one of R1, R2 and R3 is a .gamma.-hydroxypropyl radical, while the other two are not both a .beta.-hydroxyethyl radical; and cosmetically acceptable salts thereof. This compound may be used for directly dyeing hair to give blue through purplish blue shades which are wash-fast, light-fast, waterproof and sweat resistant.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: August 11, 1998
    Assignee: L'Oreal
    Inventors: Alain Lagrange, Alex Junino, Alain Genet, Jean Cotteret
  • 2-nitro-paraphenylenediamines substituted by sulphur in the 5-position, the process for their preparation, dyeing compositions in which they are present and their use in the dyeing of keratin fibres
    Patent number: 5735910
    Abstract: Novel nitrobenzene compounds of the nitroparaphenylenediamine type substituted by sulphur in the 5-position are disclosed. These compounds are intended especially for the dyeing of keratin fibres and in particular human hair. A process for their preparation, dyeing compositions in which these compounds are present and a dyeing process in which these compositions are used are also disclosed.
    Type: Grant
    Filed: December 31, 1996
    Date of Patent: April 7, 1998
    Assignee: L'Oreal
    Inventors: Alain Lagrange, Alain Genet
  • 2-sulphured metaphenylenediamines for dyeing hair
    Patent number: 5710311
    Abstract: At least one 2-sulphured metaphenylenediamine of formula (I) ##STR1## used for dyeing keratin fibres, wherein Z is alkyl, aralkyl, monohydroxyalkyl, polyhydroxyalkyl, aryl or aminoalkyl; R.sub.1 and R.sub.2, which are the same or different, are hydrogen, alkyl, monohydroxyalkyl, polyhydroxyalkyl, monocarbamylalkyl, dialkylcarbamyl, aminoalkyl, acyl carbalkoxy, carbamyl, or monoalkylcarbamyl; R.sub.3 is hydrogen, alkyl, nitrile, amide, fluoroalkyl, or --COOR; and the corresponding acid salts. A method for dyeing keratin fibres, and novel 2-sulphured metaphenylenediamines, are also disclosed.
    Type: Grant
    Filed: September 29, 1995
    Date of Patent: January 20, 1998
    Assignee: L'Oreal
    Inventors: Alex Junino, Alain Genet, Alain Lagrange
  • Dye composition for keratinic fibres containing sulfured metaphenylenediamines, dyeing process and new sulfured metaphenylenediamines and preparation method thereof
    Patent number: 5672759
    Abstract: The invention relates to a dye composition for keratinic fibers comprising an oxidation colorant precursor of the type ortho and/or para and a sulfured metaphenylenediamine having formula (I) ##STR1## wherein Z is alkyl, aralkyl, monohydroxyalkyl or polyhydroxyalkyl, aryl or aminoalkyl, as well as the acid salts thereof, with the condition that R.sub.1 and R.sub.2 do not represent simultaneously hydrogen when Z is alkyl or hydroxyalkyl, as well as the acid salts corresponding to the compounds of formula (I).
    Type: Grant
    Filed: January 19, 1996
    Date of Patent: September 30, 1997
    Assignee: L'Oreal
    Inventors: Alex Junino, Alain Genet, Alain Lagrange
  • Sulfated metaaminophenol compounds
    Patent number: 5616809
    Abstract: Sulfated metaaminophenols are disclosed and have the formula ##STR1## where: Z is alkyl, aralkyl, monohydroxyalkyl, polyhydroxyalkyl, aryl, aminoalkyl;R.sub.1 is hydrogen, alkyl, monohydroxyalkyl, polyhydroxyalkyl, monocarbamylalkyl, dicarbamylalkyl, aminoalkyl, acylaminoalkyl, carbalkoxyalkyl, carbamyl, or monoalkylcarbamyl;R.sub.2 is hydrogen, alkyl, monohydroxyalkyl, alkoxy;and their acid salts.Intermediate products used for their preparation are also disclosed.These sulfated metaaminophenols are used to dye keratinous fibers.
    Type: Grant
    Filed: April 25, 1995
    Date of Patent: April 1, 1997
    Assignee: L'Oreal
    Inventors: Alex Junino, Alain Lagrange, Alain Genet
  • Dye composition containing sulphur-containing p-phenylenediamines and corresponding dyeing processes, novel sulphur-containing p-phenylenediamines and process for the preparation thereof
    Patent number: 5542952
    Abstract: The present invention provides keratin fiber dyeing compositions containing sulfur-containing p-phenylenediamines and methods for their use.
    Type: Grant
    Filed: November 30, 1994
    Date of Patent: August 6, 1996
    Assignee: L'Oreal
    Inventors: Alain Genet, Alain Lagrance
  • Keratinous fiber dyeing methods and compositions which contain sulfated methaphenylenediamine couplers in combination with oxidation dye precursors
    Patent number: 5534036
    Abstract: The present invention provides compositions of sulfated metaphenylenediamines for dyeing keratinous fibers and methods for their use.
    Type: Grant
    Filed: December 16, 1994
    Date of Patent: July 9, 1996
    Assignee: L'Oreal
    Inventors: Alex Junino, Alain Lagrange, Alain Genet