Patents Examined by Caroline D. Liott
  • Patent number: 6302920
    Abstract: A flowable pulverulent bleaching or dyeing composition for human hair with improved properties of use, particularly dustlessness and good miscibility with water or aqueous hydrogen peroxide solution, is obtained by addition, preferably by a melting or spraying process, of about 5% to about 30% by wt. of at least one wax compound having a melting point between about 40° C. and about 130° C., preferably a C12-C18-fatty acid mono- and (or) dialkanolamide, between about 40° C. and about 130° C. to a powder comprising at least one solid compound exerting bleaching activity upon application on human hair or at least one direct hair dye.
    Type: Grant
    Filed: November 1, 1999
    Date of Patent: October 16, 2001
    Assignee: Goldwell AG
    Inventors: Heribert Lorenz, Peter Hirschfeld, Walter Eberling
  • Patent number: 6294511
    Abstract: The present invention provides an abrasive-free cleaning composition which includes, in aqueous solution, a bleach, a colloidal thickener, and a source of divalent ionic calcium. The composition further includes at least one surfactant which is effective to provide cleaning activity and, in association with the colloidal thickener, thickening. The composition also includes an electrolyte/buffer which is effective to promote an environment in which the thickener and the surfactant associate to provide proper thickening. The inventive cleaning composition, with its ionic calcium source, has desirable viscosity and rheological properties, and demonstrates significant viscosity stability, rheological stability, phase stability and bleach stability. The cleaning composition maintains these desirable properties under typical storage conditions as well as over extended times and at elevated temperatures.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: September 25, 2001
    Assignee: The Clorox Company
    Inventors: Brian P. Argo, Clement K. Choy, Shona L. Nelson
  • Patent number: 6284003
    Abstract: Oxidation dyes that contain a developer-coupler combination of 2-(2,5-diaminophenyl)-ethanol or its salt with an organic or inorganic acid and 2-chloro-6-methyl-3-aminophenol or its salt with an organic or inorganic acid are characterized by intensive blue finishes with high rubbing fastness.
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: September 4, 2001
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: David Rose, Horst Hoeffkes, Bernd Meinigke
  • Patent number: 6270531
    Abstract: A method for dry-cleaning articles such as fabrics and clothing in carbon dioxide comprises contacting an article to be cleaned with a liquid dry cleaning composition for a time sufficient to clean the fabric. The liquid dry-cleaning composition comprises a mixture of carbon dioxide, water, and an end-functional polysiloxane surfactant. After the contacting step, the article is separated from the liquid dry cleaning composition. The method is preferably carried out at ambient temperature.
    Type: Grant
    Filed: August 28, 1998
    Date of Patent: August 7, 2001
    Assignee: Micell Technologies, Inc.
    Inventors: James P. DeYoung, Gina M. Stewart, Bernadette Storey-Laubach
  • Patent number: 6258131
    Abstract: Process for preserving the dyeing capacity of 5,6-dihydroxyindole or of of its derivatives corresponding to the formula (I); in which R1, R2, R3 and R4, which are identical or different donates hydrogen or a C1-C4 lower alkyl, R1, R2 and R3 denoting hydrogen when R4 denotes alkyl in an aqueous medium, characterized in that the pH of the aqueous medium is adjusted to a value pHC of between 5 and 10 by employing a pH-regulating agent containing two components (A) and (B), the component (A) being chosen from pH-regulating agents which have a dissociation constant KCA in aqueous solution at 25° C., such as pkCA, that is: 0<pkCA−pHC≦2.5 and the component (B) being chosen from pH-regulating agents which have a dissociation constant KCB in aqueous solution at 25° C., such as pkCB, that is: 2<pkCB<pHC.
    Type: Grant
    Filed: October 8, 1997
    Date of Patent: July 10, 2001
    Assignee: L'Oreal
    Inventors: Jean Francois Grollier, Marie Francoise Bosq, Jean Cotteret, Arnaud De Labbey
  • Patent number: 6254647
    Abstract: A time and energy saving process for the preparation of a stable, aqueous emulsion for the dyeing of human hair comprises a) first heating a water phase containing water-soluble surfactants, salts and optionally other water-soluble additives to 50° and 90° C.; subsequently, b) while maintaining this temperature, adding solid fatty components having a melting point between 20° C. and the temperature actually applied according to a) between 50° and 90° C., stirring at this temperature until the solid fatty components are completely melted in the mixture, and, c) adding the remaining liquid fatty components to the composition thus obtained without any further heating.
    Type: Grant
    Filed: December 3, 1999
    Date of Patent: July 3, 2001
    Assignee: Goldwell GmbH
    Inventor: Beate Fröhling
  • Patent number: 6248137
    Abstract: The invention relates to novel compositions for the oxidation dyeing of keratinous fibers, comprising at least one 3-aminopyrazolo[1,5-a]-pyrimidine, to the method of dyeing which employs this composition, to novel 3-aminopyrazolo[1,5-a]pyrimidines and to the process for their preparation.
    Type: Grant
    Filed: December 3, 1998
    Date of Patent: June 19, 2001
    Assignee: L'Oreal S.A.
    Inventors: Eric Terranova, Aziz Fadli, Alain Lagrange
  • Patent number: 6241785
    Abstract: The invention concerns the use of flavylium type compounds, non-substituted in position 3, and substituted by at least a hydroxyl or alcoxy radical, in particular Apigenidin, in pure form or in the form of plant extracts containing them, as coloring agent in or for making compositions for dyeing keratinous fibers, particularly human keratinous fibers such as hair. The invention also concerns the dyeing compositions containing them, particularly cosmetic compositions for direct hair dyeing, and the corresponding dyeing method. The hair dyes resulting from the use of these coloring agents are particularly stable to light and washing.
    Type: Grant
    Filed: August 20, 1999
    Date of Patent: June 5, 2001
    Assignee: L'Oreal
    Inventors: Patrick Darmenton, Michel Philippe
  • Patent number: 6241783
    Abstract: Improved methods for durable and regenerable antimicrobial finishing of fabrics are disclosed. In certain embodiments, the methods reduce the amount of free-formaldehyde released during processing by using a formaldehyde scavenger such as a polyol. The improved process imparts regenerable antimicrobial functions to cellulose articles including textiles, papers, wood pulp, and any cellulose-containing materials. The treated product acquire antimicrobial properties after being treated with a halogenated solution.
    Type: Grant
    Filed: October 8, 1999
    Date of Patent: June 5, 2001
    Assignee: The Regents of the University of California
    Inventor: Gang Sun
  • Patent number: 6238439
    Abstract: Method for dyeing keratinous fibers, in particular, human keratinous fiber such as hair, without the use of iodide ions wherein a tinctorial composition containing, in a cosmetically acceptable medium having a pH of less than or equal to 7, at least one indole derivative corresponding to the formula in which: R1 denotes hydrogen, alkyl or COOH; R2 denotes hydrogen or alkyl; R denotes hydrogen, Si(CH3)3, or COalkyl; and X denotes hydrogen, OH, or OSi(CH3)3; it being possible for X in the 4- or 5-position also to denote the O-alkyl group, on condition that when X is in the 5-position with the meanings mentioned above and OR denotes OH in the 4- or 6-position, only one of the group R1 and R2 then differs from hydrogen; that when X denotes hydrogen, OR must be in the 7-position and R2 must denote hydrogen; and that when R denotes hydrogen and X denotes OH, OR and X are then in the 5- and the 6-position and R1 denotes COOH, to the fibers in a first step and, after a dwell time followed by
    Type: Grant
    Filed: March 17, 1995
    Date of Patent: May 29, 2001
    Assignee: L'Oreal
    Inventor: Jean Cotteret
  • Patent number: 6238440
    Abstract: The present invention relates to a composition for the dyeing of keratinous fibres, especially human hair, which comprises, in a medium appropriate for dyeing: as coupler, at least one compound corresponding to one of the formulae: in which R1 is especially hydrogen, halogen, aryloxy, alkoxy, acyloxy, arylthio, alkylthio, heteroarylthio, heteroaryloxy, etc; R2 and R3 are independent and are especially hydrogen, halogen, alkyl, aryl, alkylthio, arylthio, benzylthio, etc; Za, Zb and Zc are independent and are a nitrogen atom or a carbon atom carrying a radical R4, R5, R6 or R7; R4, R6 and R7 are identical or different and are especially hydrogen, alkyl, aryl, a heterocycle, a halogen, etc; and R5 is especially hydrogen, halogen, acyl, acyloxy or carbamoyl, etc; and at least one oxidation base.
    Type: Grant
    Filed: March 25, 1999
    Date of Patent: May 29, 2001
    Assignee: L'Oreal S.A.
    Inventors: Laurent Vidal, Gérard Malle
  • Patent number: 6235213
    Abstract: In one aspect, the invention includes a method of removing at least a portion of a material from a substrate, comprising: a) first etching the material in a reaction chamber; b) second etching the material in the reaction chamber; and c) cleaning a component of the material from at least one sidewall of the reaction chamber between the first etching and the second etching.
    Type: Grant
    Filed: May 18, 1998
    Date of Patent: May 22, 2001
    Assignee: Micron Technology, Inc.
    Inventor: Tuman Earl Allen, III
  • Patent number: 6231623
    Abstract: The present invention relates to a composition for dyeing keratinous fibers, especially human hair, which in a medium appropriate for dyeing comprises: as coupler at least one compound of formula:  in which: R1 is especially hydrogen, alkyl, aryl, a heterocycle, a halogen, etc.; R2 is especially hydrogen, halogen, aryloxy, alkoxy, acyloxy, arylthio, alkylthio, heteroarylthio, heteroaryloxy, etc.; Za, Zb and Zc are independently a nitrogen atom or a carbon which carries a radical R3 or R4 whose meanings are identical to those of R1; at least one of Za, Zb and Zc is a nitrogen atom; and R3 and R4 may together form an unsubstituted or substituted aromatic ring; and at least one oxidation base.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: May 15, 2001
    Assignee: L'Oreal S.A.
    Inventors: Laurent Vidal, Gérard Malle, Eric Monteil
  • Patent number: 6231621
    Abstract: The invention relates to substrates which develops color on oxidation of general formula (I). The invention also relates to the use of said substrates for dyeing, e.g. keratinous fibers, in particular hair, dyeing textiles, a dyeing composition and a method for dyeing keratinous fibers.
    Type: Grant
    Filed: March 18, 1999
    Date of Patent: May 15, 2001
    Assignee: Novozymes A/S
    Inventors: Niels Henrik Sørensen, Ole Kirk, Rikke Lolck, Torben Desler
  • Patent number: 6231622
    Abstract: The dye composition for fibers, especially keratin-containing fibers, contains at least one indane derivative compound of formula I, or a physiologically compatible, water-soluble salt thereof: wherein R1 is hydrogen, a halogen atom, a cyano group, a hydroxy group, a C1— to C4— alkoxy group, a C1— to C6— alkyl group, a nitro group, an amino group, an alkylamino group, a dialkylamino group, a —C(O)H group, a —COOR3 group, a —SO2R3 or a —C(O)CH3 group, wherein R3 is hydrogen, phenyl or a C1— to C6— alkyl group; and R2 is hydrogen, a C1— to C6— alkyl group or a phenyl group.
    Type: Grant
    Filed: October 20, 1999
    Date of Patent: May 15, 2001
    Assignee: Wella Aktiengesellschaft
    Inventors: Laurent Chassot, Laurence Descloux
  • Patent number: 6228129
    Abstract: The invention relates to a ready-to-use composition for the oxidation dyeing of keratin fibers, and in particular human keratin fibers such as the hair, comprising, in a medium which is suitable for dyeing, at least one oxidation base, at least one cationic direct dye and at least one enzyme of 2-electron oxidoreductase type in the presence of at least one donor for the said enzyme, and to the dyeing process using this composition.
    Type: Grant
    Filed: July 1, 1999
    Date of Patent: May 8, 2001
    Assignee: L'Oreal S.A.
    Inventors: Roland de la Mettrie, Jean Cotteret, Arnaud de Labbey, Mireille Maubru
  • Patent number: 6228826
    Abstract: A method for dry-cleaning articles such as fabrics and clothing in carbon dioxide comprises contacting an article to be cleaned with a liquid dry cleaning composition for a time sufficient to clean the fabric. The liquid dry-cleaning composition comprises a mixture of carbon dioxide, water, and an end-functional polysiloxane surfactant. After the contacting step, the article is separated from the liquid dry cleaning composition. The method is preferably carried out at ambient temperature.
    Type: Grant
    Filed: October 18, 1999
    Date of Patent: May 8, 2001
    Assignee: MiCell Technologies, Inc.
    Inventors: James P. DeYoung, Gina M. Stewart, Bernadette Storey-Laubach
  • Patent number: 6224637
    Abstract: A hair dyeing composition achieving intensive, stable colorations, which can be varied by the addition of further coupling substances, contains an oxidation dyestuff system reacting with peroxide comprising a combination of a) 2-(2,5-diaminophenyl)ethanol of the water-soluble salts thereof, and b) 2,6-dichloro-4-aminophenol.
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: May 1, 2001
    Assignee: Goldwell GmbH
    Inventors: Frank Golinski, Heribert Lorenz, Helmar Rudolf Wagner
  • Patent number: 6221112
    Abstract: A polyester film can be dyed by coating the film with a layer of a dye mixture which is a suspension of at least one disperse dyestuff in a solution of a thickener in water and which has a viscosity of no more than 500 centipoise, preferably 5-50 centipoise, at ambient temperature, followed by heating to cause the dyestuff to migrate from the layer into the film. The coating process is preferably reverse gravure printing. The process can be used to prepare films which contain one or more dyestuffs in one surface region of the film and one or more different dyestuffs, for example an ultraviolet absorber, in the other surface region of the film. The dyed films show good resistance to fading when exposed to light and are useful for example as automobile window films.
    Type: Grant
    Filed: November 2, 1998
    Date of Patent: April 24, 2001
    Assignee: CP Films, Inc.
    Inventor: William Douglas Snider
  • Patent number: 6218346
    Abstract: Disclosed are hair care compositions and methods for preparing such compositions which provide the benefits of cleaning, conditioning, curl retention, styling and setting properties simultaneously to hair in the application of a single product. The hair care compositions contain fatty alkyl amine salts, long chain quaternary ammonium salts and mixtures thereof of anionic styling polymers in a non-anionic surfactant system, wherein the surfactant system contains nonionic surfactants, semi-polar nonionic surfactants, amphoteric surfactants and mixtures thereof. The styling, setting and conditioning agents are present in the form of fatty alkyl amine salts or fatty quaternary ammonium salts which form anionic styling polymer particulate networks upon dilution in water. These networks are dispersed in the aqueous non-anionic surfactant system and are stabilized and thickened by optional swellable polymer thickening agents.
    Type: Grant
    Filed: October 3, 1997
    Date of Patent: April 17, 2001
    Assignee: Stepan Company
    Inventors: Branko Sajic, Y. Kameshwer Rao