Patents Examined by Caroline L. Dusheck
  • Patent number: 5755829
    Abstract: The subject of the invention is a composition for the oxidation dyeing of keratinous fibers containing at least one N-substituted 4-hydroxyindoline derivative as coupler and at least one oxidation base. The invention also relates to new N-substituted 4-hydroxyindoline derivatives, to their process of synthesis, to their use as couplers for the oxidation dyeing of keratinous fibers, in combination with at least one oxidation base, and to the dyeing processes in which they are used.
    Type: Grant
    Filed: December 5, 1996
    Date of Patent: May 26, 1998
    Assignee: L'Oreal
    Inventors: Eric Terranova, Aziz Fadli, Alain Lagrange
  • Patent number: 5752984
    Abstract: An oxidative coloring composition for coloring human hair cointaining an oxidation dye precursor in a water-containing carrier, wherein the dye precursor comprises 1,2,3,4-tetrahydroquinoxalines corresponding to formula (I): ##STR1## in which R.sup.1, R.sup.2 and R.sup.3 independently of one another represent hydrogen, C.sub.1-4 alkyl groups, benzyl groups, 2-phenylethyl groups or C.sub.2-4 hydroxyalkyl groups and X, Y and Z represent hydrogen, fluorine, chlorine, bromine or iodine atoms or C.sub.1-4 alkyl groups, and wherein at least one of the groups X, Y and Z is hydrogen.
    Type: Grant
    Filed: August 12, 1996
    Date of Patent: May 19, 1998
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Georg Knuebel, David Rose, Horst Hoeffkes, Bernd Meinigke
  • Patent number: 5752982
    Abstract: A method for dyeing keratin fibers, wherein a composition is applied to said fibers which contains, in a suitable dyeing medium, at least one coupler having formula (I) ##STR1## wherein R.sub.1 is hydrogen or alkyl; R.sub.2 and R.sub.3 are hydrogen, alkyl, COOR', where R' is alkyl or hydrogen; R.sub.4 is hydrogen, hydroxyalkyl, alkyl, polyhydroxyalkyl or acetyl or aminoalkyl wherein the amine may be mono- or disubstituted by alkyl; Z.sub.1 and Z.sub.2 are hydrogen, alkyl, hydroxy, halogen, alkoxy or a salt thereof; at least one precursor of an oxidation hair dye; and at least one oxidizing agent, the pH of the composition applied to the fibers being less than 7.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: May 19, 1998
    Assignee: L'Oreal
    Inventors: Gerard Lang, Alex Junino, Jean Cotteret, Alain Lagrange
  • Patent number: 5746779
    Abstract: Quaternized blue anthraquinone compounds of Formula I ##STR1## wherein R.sub.1 and R.sub.2 are methyl and R.sub.3 is propyl, or R.sub.1 and R.sub.2 are ethyl and R.sub.3 is methyl and A.sup.- is a cosmetically acceptable anion, when employed in an isatin/amine dye system for the dyeing of hair enable the hair colorist to develop a full range of shades for the isatin/amine dye system. The compound of Formula I wherein R1 and R2 are methyl and R3 is propyl is preferred. Compositions and a method of use employing same are disclosed.
    Type: Grant
    Filed: July 12, 1996
    Date of Patent: May 5, 1998
    Assignee: Bristol-Myers Squibb Company
    Inventor: Keith Brown
  • Patent number: 5747438
    Abstract: There is provided a particulate solid machine dishwashing detergent composition containing alkali metal percarbonate bleach coated with a mixed salt comprising an alkali metal carbonate and an alkali metal sulphate salt; a peroxyacid bleach precursor; an acidification agent; and a means for enabling delayed release of said acidification agent such that the pH of said composition as a 1% solution in water at 20.degree. C. is from 9.5 to 13.0 prior to release of said acidification agent, and such that the pH of said composition as a 1% solution in water at 20.degree. C. is from 9.3 to 7.0 subsequent to complete release of said acidification agent.
    Type: Grant
    Filed: April 19, 1996
    Date of Patent: May 5, 1998
    Assignee: The Procter & Gamble Company
    Inventor: Fiona Susan MacBeath
  • Patent number: 5746778
    Abstract: A wood stain which is water-based, which is suitable for staining wood, and which is comprised of water; at least one dye selected from the group consisting of azo, diazo and triarylmethane dyes; and a stabilizing agent which is effective to reduce free iron ion concentration in the stain when in contact with an autoclave composed of non-rust resistant steel during the staining process. The stabilizing agent includes at least one buffer effective to maintain the pH of the wood stain at greater than 7.0. Alternatively or additionally, the stabilizing agent includes at least one complexing agent which forms a complex with iron ions.
    Type: Grant
    Filed: May 23, 1996
    Date of Patent: May 5, 1998
    Assignee: A.W. Faber-Castell Unternehmensverwaltung GmbH & Co.
    Inventors: Axel Jankewitz, Gerhard Lugert
  • Patent number: 5744438
    Abstract: Stripping action of an alkaline paint stripper is improved when ammonia is partially or completely replaced with ammonium bicarbonate or chemical equivalent thereof which decomposes into ammonia and carbon dioxide. A benzyl alcohol solvent system containing at least ammonium bicarbonate is preferably a water-in-oil emulsion emulsified with oleic hydroxyethyl imidazoline and thickened with hydroxypropyl cellulose or hydroxypropyl methylcellulose. A mixture of ammonium carbamate and ammonium bicarbonate identified as ammonium carbonate is the preferred activator for this alkaline paint stripper. Improved stripping can also be provided by reacting ammonium bicarbonate and ammonia in situ within the water-in-oil emulsion.
    Type: Grant
    Filed: July 26, 1996
    Date of Patent: April 28, 1998
    Assignee: Elf Atochem North America, Inc.
    Inventor: John Distaso
  • Patent number: 5741337
    Abstract: A composition for the oxidation dyeing of keratinous fibres, especially human hair, which comprises an oxidation dye precursor in combination with a coupler and an oxidizing agent, in an acidic medium. The composition is applied to keratinous fibers in a hair dyeing process.
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: April 21, 1998
    Assignee: L'Oreal
    Inventors: Eric Bone, Roland de la Mettrie
  • Patent number: 5735909
    Abstract: A composition for the oxidation dyeing of keratin fibres, in particular human keratin fibres such as the hair, comprising at least one suitably selected oxidation base, at least one meta-aminophenol or an acid addition salt thereof as a first coupler, and at least one 6-hydroxyindoline or an acid addition salt thereof as a second coupler, and to the dyeing process using this composition with an oxidizing agent.
    Type: Grant
    Filed: February 27, 1996
    Date of Patent: April 7, 1998
    Assignee: L'Oreal
    Inventor: Mireille Maubru
  • Patent number: 5735907
    Abstract: A method of coloring keratinous fibers with, and coloring compositions comprising, a sulfo-containing, water-dispersible polymer having carbonyloxy linking groups, and a colorant reacted into or onto the polymer backbone.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: April 7, 1998
    Assignee: Clairol, Inc.
    Inventors: James J. Krutak, Dante J. Rutstrom, Keith C. Brown, Mario L. Garcia
  • 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
  • Patent number: 5733344
    Abstract: The present invention provides a temporary hairdye which is excellent in dispersion stability of a pigment even after storage over a long period of time by dispersing titanium black, which is safe to a human body, in alcohol having 4 or less carbon atoms, primarily ethanol by using an N-methacryloylethyl-N,N-dimethylammonium..alpha.-N-methylcarboxybetain.but yl methacrylate copolymer. Further, there can be prepared a temporary hairdye which increases dispersion stability of the pigments and provides a different hue by subjecting titanium black and other pigments, particularly iron oxide type pigments such as iron oxide red, black iron oxide and yellow iron oxide to dispersion treatment together.
    Type: Grant
    Filed: November 27, 1996
    Date of Patent: March 31, 1998
    Assignee: Mitsubishi Pencil Kabushiki Kaisha
    Inventors: Katsuhiko Shiraishi, Kiyokazu Sakurai, Tetsuo Kosaka, Tomoko Hasegawa, Kazuhiro Ami, Takashi Umeno
  • Patent number: 5733343
    Abstract: Keratin-containing fibres, in particular human hair, are dyed using dyes of formulae (1) to (6) indicated in claim 1. These dyes make it possible to dye by the trichromatic principle even in dark shades.
    Type: Grant
    Filed: November 26, 1996
    Date of Patent: March 31, 1998
    Assignee: Ciba Specialty Chemicals Corporation
    Inventor: Peter Mockli
  • Patent number: 5725602
    Abstract: Hair dye composition including, as dyeing agent, a product of grinding, in particular a ground freeze-dried product, plants or parts of plants of the species Impatiens balsamina. This product of grinding is applied to hair in the form of a dispersion in a liquid, the said dispersion having a consistency that is sufficient to coat the hair. After a sufficient period of application the hair is rinsed to remove the composition.
    Type: Grant
    Filed: February 29, 1996
    Date of Patent: March 10, 1998
    Assignee: L'Oreal
    Inventors: Beatrice Belcour-Castro, Richard Martin
  • Patent number: 5725603
    Abstract: A process for the direct dyeing of keratinous fibers, which comprises directly dyeing the fibers by contacting the fibers with a composition containing at least one natural dye and with a gas containing water vapor, the temperature of the gas being at least 75.degree. C. and the contact time between the gas and the fibers to be dyed not exceeding two minutes. The hair is dyed uniformly over the whole head of hair, from the roots to the ends, regardless of the condition of the hair.
    Type: Grant
    Filed: March 20, 1996
    Date of Patent: March 10, 1998
    Assignee: L'Oreal
    Inventors: Marie-Pascale Audousset, Jean-Michel Sturla
  • Patent number: 5716923
    Abstract: There is provided a particulate solid laundry detergent composition containing alkali metal percarbonate bleach coated with a mixed salt comprising an alkali metal carbonate and an alkali metal sulphate salt; a peroxyacid bleach precursor; an acidification agent; and a means for enabling delayed release of said acidification agent such that the pH of said composition as a 1% solution in water at 20.degree. C. is from 9.5 to 13.0 prior to release of said acidification agent, and such that the pH of said composition as a 1% solution in water at 20.degree. C. is from 9.3 to 7.0 subsequent to complete release of said acidification agent.
    Type: Grant
    Filed: April 19, 1996
    Date of Patent: February 10, 1998
    Assignee: The Proctor & Gamble Company
    Inventor: Fiona Susan MacBeath
  • Patent number: 5716418
    Abstract: A composition and process for coloring keratin-containing fibers wherein the composition comprises: (a) an alkyl glycoside of the formula (I):R.sup.1 --O--(G).sub.x --H (I)wherein R.sup.1 is a linear or branched alkyl or alkenyl radical having from 12 to 16 carbon atoms, (G) is an anhydroglucose unit, and x is a number from about 1 to about 2.5; (b) an oxidation dye precursor; and (c) a water-based carrier.
    Type: Grant
    Filed: March 15, 1996
    Date of Patent: February 10, 1998
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Iduna Matzik, Horst Hoeffkes, Detlef Hollenberg, Reinhard Mueller, Manuela Ehlert, Christa Schramm
  • Patent number: 5714449
    Abstract: A non-aqueous liquid cleaning composition comprising a non-aqueous organic solvent, particles of solid material dispersed in the solvent and a dispersant, wherein the dispersant is a hydrophobically modified material.
    Type: Grant
    Filed: June 1, 1994
    Date of Patent: February 3, 1998
    Assignee: Unilever Patent Holdings B.V.
    Inventors: Cornelis Bernard Donker, Pieter Versluis
  • Patent number: 5711765
    Abstract: A process for the direct dyeing of keratin fibers, characterized in that it comprises in placing keratin fibers, to which a dye composition containing at least one cationic direct dye has been applied, in contact with a gas containing water vapor, the temperature of the gas preferably being above 75.degree. C., the contact time between the gas and the fibers to be dyed preferably not exceeding two minutes. According to the invention, the hair is dyed uniformly, from the roots to the tips, regardless of the state of the hair.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: January 27, 1998
    Assignee: L'Oreal
    Inventor: Marie-Pascale Audousset
  • Patent number: 5712239
    Abstract: The present invention relates to liquid detergent compositions comprising:(1) 1-80% by wt. surfactant;(2) defined peroxyacid; and(3) 0.01-20% by wt. of a mono substituted phenolic compound.The compounds help to extend the half life of the peracid bleaches in such compositions. The invention further relates to a method of incorporating stability of surfactant compositions comprising peracid bleaches which method comprises adding 0.01-2.0% by wt. of said substituted phenolic compound to the composition.
    Type: Grant
    Filed: April 8, 1996
    Date of Patent: January 27, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Charles Nathaniel Knowlton, Janet Coope, Daniel Kuzmenka, Mark Stephen Naser