Patents by Inventor Stefan Ehrenberg

Stefan Ehrenberg 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: 20120284934
    Abstract: The present invention provides azo dyes of formula (1) where Hal, M and Y are each as defined in claim 1, processes for their preparation and their use.
    Type: Application
    Filed: March 13, 2012
    Publication date: November 15, 2012
    Applicant: DyStar Clours Deutschland GmbH
    Inventor: Stefan Ehrenberg
  • Publication number: 20110173764
    Abstract: The invention relates to an azo dye of formula (1) The invention also relates to a process for the preparation of the dye of formula (1) and the use of the dye of the formula (1).
    Type: Application
    Filed: July 24, 2009
    Publication date: July 21, 2011
    Applicant: DyStar Colours Deutschland GmbH
    Inventor: Stefan Ehrenberg
  • Publication number: 20100016519
    Abstract: Colored organopolysiloxanes comprising units of the formula R1a(RO)bAcR2dSiO(4?a?b?c?d)/2 ??(I), in which R is hydrogen or a monovalent, unsubstituted or substituted hydrocarbon radical, wherein R is identical or different among the units of the formula (I); R1 is hydrogen or a monovalent, SiC-bonded, unsubstituted or substituted hydrocarbon radical, wherein R1 is identical or different among the units of the formula (I); R2 is a substituted monovalent hydrocarbon radical, wherein R2 is identical or different among the units of the formula (I); A is a hydrophilic organic dye radical or its complex compound with a metal, which contains at least one triazine ring via which it is bonded to the unit of the formula (I), wherein A is identical or different among the units of the formula (I); a is 0, 1, 2 or 3; h is 0, 1, 2 or 3; d is 0,1, 2 or 3; and c is 0, 1 or 2; wherein a+b+c+d?3; wherein d is 0 in the units of the formula (I) where c is not 0; and wherein the organopolysiloxane has at least one radical A p
    Type: Application
    Filed: September 20, 2007
    Publication date: January 21, 2010
    Inventors: Werner Russ, Roxana Barbieru, Stefan Ehrenberg, Gunter Görlitz, Christian Ochs, Daniel Shildbach
  • Publication number: 20090320217
    Abstract: The present invention provides dye mixtures containing one or more dyes of the general formula (I) and one or more dyes of the general formulae (II) where D1, D2, D3 RA, RB, RC, Z1 and M are each as defined in claim 1, processes for their preparation and their use.
    Type: Application
    Filed: January 28, 2008
    Publication date: December 31, 2009
    Applicant: DyStar Textifarben GmbH & Co. Deutschland KG
    Inventors: Stefan Ehrenberg, Stefan Meier, Christian Schumacher
  • Publication number: 20090209743
    Abstract: The present invention relates to colored organopolysiloxanes comprising units of the formula R1a(RO)bAcR2dSiO(4-a-b-c-d)/2??(I), in which R can be identical or different and is hydrogen or a monovalent, unsubstituted or substituted hydrocarbon radical; R1 can be identical or different and is hydrogen or a monovalent, SiC-bonded, unsubstituted or substituted hydrocarbon radical; R2 can be identical or different and is a substituted monovalent hydrocarbon radical; A can be identical or different and is an organic dye radical free from sulfonic acid groups and sulfonate groups; a is 0, 1, 2 or 3; b is 0, 1, 2 or 3; d is 0, 1, 2 or 3; and c is 0, 1 or 2; with the proviso that the sum a+b+c+d is ?3, the organopolysiloxane has at least one radical A per molecule, and in the units of the formula (I) where c is other than 0 when d is 0. The invention also relates to a process to the color organopolysiloxane.
    Type: Application
    Filed: June 6, 2007
    Publication date: August 20, 2009
    Inventors: Roxana Barbieru, Stefan Ehrenberg, Werner Russ, Christian Ochs, Daniel Schildbach
  • Patent number: 7468081
    Abstract: The present invention relates to processes for mono-, di- or trichromatic dyeing or printing of natural or synthetic polyamide fiber materials, these processes utilizing a) blue-dyeing dye mixture, b) a red-dyeing dye mixture and/or c) a yellow-dyeing dye mixture, and also blue-dyeing, red-dyeing and yellow-dyeing dye mixtures and processes for their preparation.
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: December 23, 2008
    Assignee: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventors: Stefan Ehrenberg, Andreas Giehl, Jörg Wörner
  • Patent number: 7414129
    Abstract: The present invention relates to triphendioxazine dye of the general formula I where A1 and A2, B, R1 and M are each as defined in the claims and Y1 is a group of the general formula II or III where X1 to X4 and also R2 and R3 are each as defined in the claims, processes for their preparation and their use for dyeing and printing hydroxyl- and/or carboxamido-containing materials.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: August 19, 2008
    Assignee: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventor: Stefan Ehrenberg
  • Patent number: 7381228
    Abstract: The present invention relates to processes for mono-, di- or trichromatic dyeing or printing of natural or synthetic polyamide fiber materials, these processes utilizing a) blue-dyeing dye mixture, b) a red-dyeing dye mixture and/or c) a yellow-dyeing dye mixture, and also blue-dyeing, red-dyeing and yellow-dyeing dye mixtures and processes for their preparation.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: June 3, 2008
    Assignee: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventors: Stefan Ehrenberg, Andreas Giehl, Jörg Wörner
  • Publication number: 20080114166
    Abstract: The present invention relates to triphendioxazine dye of the general formula I where A1 and A2, B, R1 and M are each as defined in the claims and Y1 is a group of the general formula II or III where X1 to X4 and also R2 and R3 are each as defined in the claims, processes for their preparation and their use for dyeing and printing hydroxyl- and/or carboxamido-containing materials.
    Type: Application
    Filed: December 20, 2005
    Publication date: May 15, 2008
    Applicant: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventor: Stefan Ehrenberg
  • Publication number: 20070199163
    Abstract: The present invention relates to processes for mono-, di- or trichromatic dyeing or printing of natural or synthetic polyamide fiber materials, these processes utilizing a) blue-dyeing dye mixture, b) a red-dyeing dye mixture and/or c) a yellow-dyeing dye mixture, and also blue-dyeing, red-dyeing and yellow-dyeing dye mixtures and processes for their preparation.
    Type: Application
    Filed: April 30, 2007
    Publication date: August 30, 2007
    Applicant: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventors: Stefan Ehrenberg, Andreas Giehl, Jorg Worner
  • Publication number: 20070199162
    Abstract: The present invention relates to processes for mono-, di- or trichromatic dyeing or printing of natural or synthetic polyamide fiber materials, these processes utilizing a) blue-dyeing dye mixture, b) a red-dyeing dye mixture and/or c) a yellow-dyeing dye mixture, and also blue-dyeing, red-dyeing and yellow-dyeing dye mixtures and processes for their preparation.
    Type: Application
    Filed: April 30, 2007
    Publication date: August 30, 2007
    Applicant: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventors: Stefan Ehrenberg, Andreas Giehl, Jorg Worner
  • Patent number: 7129336
    Abstract: The present invention relates to reactive dyes of the general formula (1) where Y is a heterocyclic reactive group of the general formula (2) or (3) where X1 to X5 are each as defined in claim 1, processes for their preparation and their use for dyeing and printing hydroxyl- and/or carboxamido-containing materials.
    Type: Grant
    Filed: January 10, 2005
    Date of Patent: October 31, 2006
    Assignee: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventors: Stefan Ehrenberg, Jörg Wörner, Tracy Livesey
  • Patent number: 7109313
    Abstract: The present invention relates to dyes of the general formula (I) where X1 is a radical —CH2CH2Z or —CH?CH2, Z being analkali-eliminable group, X2 is alkyl, alkoxy, halogen, COOM or SO3M, X3 is a heterocyclic reactive group of the general formula (IIa) or (IIb) ?or a reactive group of the formula (IIc), (IId) or (IIe) the stated variables being as defined in claim 1, to processes for preparing them and to their use for dyeing and printing hydroxyl-containing and/or carboxamido-containing material.
    Type: Grant
    Filed: March 18, 2003
    Date of Patent: September 19, 2006
    Assignee: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventors: Stefan Meier, Werner Russ, Stefan Ehrenberg
  • Publication number: 20050159592
    Abstract: The present invention relates to reactive dyes of the general formula (1) where Y is a heterocyclic reactive group of the general formula (2) or (3) where X1 to X5 are each as defined in claim 1, processes for their preparation and their use for dyeing and printing hydroxyl- and/or carboxamido-containing materials.
    Type: Application
    Filed: January 10, 2005
    Publication date: July 21, 2005
    Applicant: DyStar Textilfarben GmbH & Co.Deutschland KG
    Inventors: Stefan Ehrenberg, Jorg Worner, Tracy Livesey
  • Publication number: 20050148764
    Abstract: Water-soluble monoazo and disazo dyes The present invention relates to dyes of the general formula (I) where X1 is a radical —CH2CH2Z or —CH?CH2, Z being analkali-eliminable group, X2 is alkyl, alkoxy, halogen, COOM or SO3M, X3 is a heterocyclic reactive group of the general formula (IIa) or (IIb) or a reactive group of the formula (IIc), (IId) or (IIe) the stated variables being as defined in claim 1, to processes for preparing them and to their use for dyeing and printing hydroxyl-containing and/or carboxamido-containing material.
    Type: Application
    Filed: March 18, 2003
    Publication date: July 7, 2005
    Applicant: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventors: Stefan Meier, Werner Russ, Stefan Ehrenberg
  • Publication number: 20050060819
    Abstract: The present invention relates to processes for mono-, di- or trichromatic dyeing or printing of natural or synthetic polyamide fiber materials, these processes utilizing a) blue-dyeing dye mixture, b) a red-dyeing dye mixture and/or c) a yellow-dyeing dye mixture, and also blue-dyeing, red-dyeing and yellow-dyeing dye mixtures and processes for their preparation.
    Type: Application
    Filed: September 22, 2004
    Publication date: March 24, 2005
    Applicant: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventors: Stefan Ehrenberg, Andreas Giehl, Jorg Worner
  • Patent number: 6809187
    Abstract: Reactive copper, cobalt or chromium complex compounds of the general formula (1) where R1-R5, M, Me, W1, X, k, l and m are each as defined in claim 1, processes for their preparation and their use for dyeing or printing textile fiber materials.
    Type: Grant
    Filed: April 10, 2003
    Date of Patent: October 26, 2004
    Assignee: Oystar Textil Farben GmbH & Co.
    Inventors: Stefan Ehrenberg, Klaus Kunde
  • Publication number: 20040054154
    Abstract: Reactive copper, cobalt or chromium complex compounds of the general formula (1) 1
    Type: Application
    Filed: April 10, 2003
    Publication date: March 18, 2004
    Inventors: Stefan Ehrenberg, Klaus Kunde
  • Publication number: 20030177944
    Abstract: Compounds of the formula I 1
    Type: Application
    Filed: February 13, 2003
    Publication date: September 25, 2003
    Inventors: Klaus Kunde, Stefan Ehrenberg
  • Patent number: 6444794
    Abstract: Disclosed are water-soluble dyes, such as azo dyes, metal complex dyes, anthraquinone, phthalocyanine and formazan dyes which, optionally via a bridge member, possess a fiber-reactive group of the vinyl sulfone series and further contain a 4-cyanamido-1,3,5-triazin-6-ylamino radical which is 2-substituted by a group of the general formula (2) where Rz is hydrogen, lower alkyl optionally substituted by alkyl, hydroxyl, cyano, lower alkoxy, carboxyl, sulfamoyl, sulfo or sulfato or an optionally substituted phenyl radical, or is a cyclohexyl radical or an optionally substituted phenyl radical, W is an alkyl radical which is substituted by a reactive group and may be interrupted by a hetero atom, A is zero or 1 and B is 1 or 2, subject to the proviso that the sum of (A+B) is 2.
    Type: Grant
    Filed: May 22, 2000
    Date of Patent: September 3, 2002
    Assignee: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventors: Jörg Dannheim, Stefan Ehrenberg