Patents Assigned to DyStar Colours Distribution GmbH
  • Preparations comprising disperse dye and/or UV absorber
    Patent number: 9115465
    Abstract: The invention relates to the use of polycarboxylate ethers for dispersing disperse dyes and UV absorbers. The invention also relates to a preparation containing a disperse dye and/or a UV absorber, further comprising a polycarboxylate ether as a dispersant.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: August 25, 2015
    Assignee: DyStar Colours Distribution GmbH
    Inventors: Andreas Schrell, Clemens Grund, Hartwig Jordan, Matthias Hofmann
  • Disperse dye mixtures, their preparation and use
    Patent number: 9096972
    Abstract: The present invention relates to dye mixtures containing at least one dye of formula (I) and at least either a dye of formula (II) and/or at least one dye of formula (III) where R1-R15, n, o, X and D1-D3 are each as defined in claim 1. These dye mixtures are useful for dyeing or printing hydrophobic materials in particular.
    Type: Grant
    Filed: January 7, 2012
    Date of Patent: August 4, 2015
    Assignee: DyStar Colours Distribution GmbH
    Inventors: Markus Arnold, Andrian Murgatroyd, Clemens Grund, Gunter Görlitz, Timo Liebig
  • Fiber-reactive copper complex disazo dyes
    Patent number: 9062208
    Abstract: The present invention relates to dyes of the formula (I), in which R1 to R4, D1, f, and M are defined as indicated in claim 1, to processes for preparing them, and to their use for dyeing and printing hydroxyl- and/or carboxamido-containing materials.
    Type: Grant
    Filed: January 18, 2010
    Date of Patent: June 23, 2015
    Assignee: DyStar Colours Distribution GmbH
    Inventors: Joachim Eichhorn, Andreas Schrell
  • Metal free acid dyes, methods for the production thereof and their use
    Patent number: 8979947
    Abstract: The present invention relates to dyes of the formula (I) in which R1 to R10, D1 and D2 are defined as given in claim 1, a process for preparing them, and their use for dyeing and printing hydroxyl- and/or carboxamido-containing materials.
    Type: Grant
    Filed: November 24, 2011
    Date of Patent: March 17, 2015
    Assignee: DyStar Colours Distribution GmbH
    Inventors: Roxana Barbieru, Vajiravelu Sivamurugan
  • Mixtures of disperse dyes
    Patent number: 8906116
    Abstract: The present invention relates to dye mixtures which comprise at least one dye of the formula (I) and at least one dye of the formula (II) in which R1, R2, R3, and X are defined as stated in claim 1, to processes for their preparation, and to their use.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: December 9, 2014
    Assignee: DyStar Colours Distribution GmbH
    Inventors: Adrian Murgatroyd, Clemens Grund, Klaus-Wilfried Wanken, Hartwig Jordan
  • Disazo dyes, preparation and use
    Patent number: 8834581
    Abstract: Described are dyes of formula (I) where R1 is hydrogen, alkyl, alkoxy, trifluoromethyl or halogen, M is hydrogen, an alkali metal cation or an optionally substituted ammonium cation, R2 and R3 are each independently hydrogen, alkyl or alkoxy, R4 is alkyl or alkoxy, R5 and R6 are each independently moieties of the formula —(CmH2m)—O—CnH2n+1, m is an integer from 3 to 6, and n is an integer from 0 to 8. These dyes are useful for dyeing and printing materials having polar groups.
    Type: Grant
    Filed: December 17, 2011
    Date of Patent: September 16, 2014
    Assignee: DyStar Colours Distribution GmbH
    Inventors: Aloysius Engel, Michael Joerss, Clemens Grund, Bernd Hostasch, Gunter Görlitz
  • DISPERSE DYE MIXTURES, THEIR PREPARATION AND USE
    Publication number: 20140123407
    Abstract: The present invention relates to dye mixtures containing at least one dye of formula (I) and at least either a dye of formula (II) and/or at least one dye of formula (III) where R1-R15, n, o, X and D1-D3 are each as defined in claim 1. These dye mixtures are useful for dyeing or printing hydrophobic materials in particular.
    Type: Application
    Filed: January 7, 2012
    Publication date: May 8, 2014
    Applicant: DyStar Colours Distribution GmbH
    Inventors: Markus Arnold, Andrian Murgatroyd, Clemens Grund, Gunter Görlitz, Timo Liebig
  • DISAZO DYES, PREPARATION AND USE
    Publication number: 20130333123
    Abstract: Described are dyes of formula (I) where R1 is hydrogen, alkyl, alkoxy, trifluoromethyl or halogen, M is hydrogen, an alkali metal cation or an optionally substituted ammonium cation, R2 and R3 are each independently hydrogen, alkyl or alkoxy, R4 is alkyl or alkoxy, R5 and R6 are each independently moieties of the formula —(CmH2m)—O—CnH2n+1, m is an integer from 3 to 6, and n is an integer from 0 to 8. These dyes are useful for dyeing and printing materials having polar groups.
    Type: Application
    Filed: December 17, 2011
    Publication date: December 19, 2013
    Applicant: DyStar Colours Distribution GmbH
    Inventors: Aloysius Engel, Michael Joerss, Clemens Grund, Bernd Hostasch, Gunter Görlitz
  • METAL FREE ACID DYES, METHODS FOR THE PRODUCTION THEREOF AND THEIR USE
    Publication number: 20130255010
    Abstract: The present invention relates to dyes of the formula (I) in which R1 to R10, D1 and D2 are defined as given in claim 1, a process for preparing them, and their use for dyeing and printing hydroxyl- and/or carboxamido-containing materials.
    Type: Application
    Filed: November 24, 2011
    Publication date: October 3, 2013
    Applicant: DyStar Colours Distribution GmbH
    Inventors: Roxana Barbieru, Vajiravelu Sivamurugan
  • Disperse dyes, their preparation and their use
    Patent number: RE45686
    Abstract: The present invention provides dyes of the general formula (I) where D, R1 to R7 and n are each as defined in claim 1, processes for their preparation and their use.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: September 29, 2015
    Assignee: DyStar Colours Distribution GmbH
    Inventors: Hartwig Jordan, Stefan Neubauer
  • Disperse azo dye mixtures
    Patent number: RE46018
    Abstract: The present invention relates to dye mixtures comprising at least one compound of the formula (I) and at least one compound of the formula (II) where the substituents are each as defined in the description part, which are highly useful for dyeing and printing hydrophobic synthetic material.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: May 31, 2016
    Assignee: DyStar Colours Distribution GmbH
    Inventors: Manfred Hoppe, Kiyoshi Himeno, Ryouichi Sekioka