Patents Examined by Margatet Einsmann
  • Use of pigment dyes for dispersion dyeing from aqueous media
    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