Patents Represented by Attorney Tod A. Waldrop
  • Patent number: 7101983
    Abstract: The present invention relates to novel dyestuffs of formula (I) wherein the substituents have the meanings defined in the claims, the production of such dyestuffs, the use of these dyestuffs and material dyed or printed by such dyestuffs.
    Type: Grant
    Filed: April 2, 2002
    Date of Patent: September 5, 2006
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Robert Egli, Oliver Eich, Knut Göke
  • Patent number: 7097702
    Abstract: Disclosed are novel dyestuff for printing recording materials, especially textile fiber materials, paper and papery substrates and plastic films and plastic transparencies by the inkjet printing process of the formula (I) wherein all substituents are defined in the claims.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: August 29, 2006
    Assignee: Clariant Finance (BVI) Limited
    Inventor: Ludwig Hasemann
  • Patent number: 7097699
    Abstract: A composition for printing recording materials comprising a) at least one temporarily water-soluble dye with one SO2CH2COOM group being present in the molecule; b) water or a medium including a mixture of water and an organic solvent, an anhydrous organic solvent or a solid having a low melting point, and c) optionally further additives.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: August 29, 2006
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Robert Egli, Oliver Eich, Hans-Tobias Macholdt, Reinhard Pedrazzi
  • Patent number: 7091328
    Abstract: According to the invention there are provided fiber-reactive dyestuffs which are compounds of the formula (I) wherein the substituents are defined as in claim 1, a process making the same and their use in dyeing or printing hydroxy-group-containing organic substrates.
    Type: Grant
    Filed: April 15, 2002
    Date of Patent: August 15, 2006
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Roland Wald, Markus Gisler
  • Patent number: 7060201
    Abstract: Optical brighteners (PAB) of formula wherein each n independently signifies 1 or 2, the group SO3M shown with the floating bond is linked to the position 4 or 5, each M independently signifies an equivalent of a non-chromophoric cation, each M? independently signifies hydrogen or M, at least a part of the cations M of (PAB) are cationic groups of a polycationic polyol/epichlorohydrin/amine polymer (PA), which contains quaternary ammonium groups in salt form as heteroatomic ring members or chain members, any others being cations selected from alkali metal cations, unsubstituted ammonium and ammonium substituted with C1-3-alkyl or/and C2-3-hydroxyalkyl, the polycationic polymer (PA) is a polymer which is at least in part crosslinked over one or more of its quaternary ammonium groups, any other counterions to the cationic groups of (PA) being non-chromophoric anions of low molecular acids, and the ratio of the total anionic groups in the anionic optical brightener portion of (PAB) to the total of cationi
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: June 13, 2006
    Assignee: Clariant Finance (BVI) Limited
    Inventor: John Martin Farrar
  • Patent number: 7044985
    Abstract: A process and formulation for pre-treating a cellulosic, or cellulosic blend with synthetic fiber, substrate, achieving sufficient clearness and appropriate absorbency prior to dyeing the substrate. The process having the steps of: providing a vessel; providing a cellulosic, or their blends with synthetic fiber, substrate; providing a water bath; adding an active amount of an activating compound selected from the group of: salts of organic acids, organic amine derivatives, transitional metals salts and complexes, pigments, and combinations thereof; adding an active amount of caustic soda; adding an active amount of hydrogen peroxide; achieving a pH from about 6.0 to about 9.0 at the end of the bleaching cycle; heating the water bath to a temperature in excess of 50 degrees centigrade for a pre-determined period of time; and dropping the bath.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: May 16, 2006
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Angelo Rizzardi, Michael Grigat
  • Patent number: 7019134
    Abstract: Water soluble, amphoteric optical brighteners (W) comprising at least one brightener-characteristic radical X which contain at least one anionic substituent and covalently linked over at least one tertiary amino group Z to at least one non-chromophoric, essentially aliphatic, polyquaternary ammonium-hydrocarbon radical Y containing more than one quaternary ammonium group and in which each hydrocarbon radical is optionally interrupted by and/or substituted with one or more further heteroatoms, have surprising brightening properties, especially in papermaking, and in the form of their aqueous solutions are of notable stability.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: March 28, 2006
    Assignee: Clariant Finance (BVI) Limited
    Inventors: John Martin Farrar, Andrew Clive Jackson
  • Patent number: 7015314
    Abstract: This invention relates to novel fibre-reactive formazan dyes of the formula (I): where the symbols are each as defined in claim 1, their preparation, their use for dyeing and printing hydroxyl-containing or nitrogenous organic substrates and substrates dyed or printed with these compounds.
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: March 21, 2006
    Assignee: Clariant Finance (BVI) Limited
    Inventor: Markus Gisler
  • Patent number: 7004982
    Abstract: Use of pigments according to formula (I) wherein all substituents have the meanings as defined in claim 1 for dyeing semisynthetic or synthetic hydrophobic fiber materials in aqueous media as well as semisynthetic or synthetic hydrophobic fiber materials dyed with such pigments.
    Type: Grant
    Filed: January 14, 2002
    Date of Patent: February 28, 2006
    Assignee: Clariant Finance (BVI) Limited
    Inventor: Helmut Sieber
  • Patent number: 7001437
    Abstract: Use of pigments according to formula (I) wherein the substituents have the meanings as defined in claim 1 for dyeing semisynthetic or synthetic hydrophobic fiber materials characterized in that the dyeing process takes place in aqueous media as well as semisynthetic or synthetic hydrophobic fiber materials dyed by such an use.
    Type: Grant
    Filed: January 21, 2002
    Date of Patent: February 21, 2006
    Assignee: Clariant Finance (BVI) Limited
    Inventor: Helmut Sieber
  • Patent number: 6994736
    Abstract: Use of pigments according to formula (I) wherein the substituents have the meanings as defined in claim 1 for dyeing semisynthetic or synthetic hydrophobic fiber materials in aqueous media as well as semisynthetic or synthetic hydrophobic fiber materials dyed with such pigments.
    Type: Grant
    Filed: January 21, 2002
    Date of Patent: February 7, 2006
    Assignee: Clariant Finance (BVI) Limited
    Inventor: Helmut Sieber
  • Patent number: 6991659
    Abstract: The invention provides a process for the production of tanned and optionally retanned leather by treatment of an optionally (pre)tanned animal hide or pelt with an aldehyde-based treatment agent (A), wherein the optionally (pre)tanned animal hide or pelt is treated with (A) an aldehyde-based treatment agent which may e.g.
    Type: Grant
    Filed: January 25, 2002
    Date of Patent: January 31, 2006
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Roy Kittmer, Song Ma, Matthew Walker
  • Patent number: 6974497
    Abstract: Claimed are compounds of formula (I) where the substituents are each as defined in the claims, their preparation, their use as dyes and as a ingredients of an ink-jet printing ink and also substrates dyed with such compounds.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: December 13, 2005
    Assignee: Clariant Finance (BVI) Limited
    Inventor: Rainer Nusser
  • Patent number: 6927284
    Abstract: 1:2-metal complex dyes of the formula wherein the symbols R1, R1?, R2, R2?, R3, R3?, Y, Z, n, n?, Me, M and (Kat)+ are defined as in the Claims, mixtures thereof, their compositions, their production and their use as anionic dyes for dyeing substrates, especially leather, in brown to red shades.
    Type: Grant
    Filed: October 14, 2002
    Date of Patent: August 9, 2005
    Assignee: Clariant Finance (BVI) Limited
    Inventor: Jordi Berenguer