Patents Represented by Attorney Connolly Bove Lodge & Hotz

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  • Yellow disperse dye mixture which has a high level of light fastness
    Patent number: 7097670
    Abstract: The present inventions refers to a dye mixture comprising from 25 to 80% by weight with respect to the total dyestuff fraction of the yellow dyestuff represented by the structural formula [1] and from 75 to 20% by weight with respect to the total dyestuff fraction of a yellow dyestuff represented by the structural formula [2] wherein R denotes a C1 to C4 hydroxyalkyl group.
    Type: Grant
    Filed: August 2, 2003
    Date of Patent: August 29, 2006
    Assignee: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventors: Toshio Hihara, Hiroshi Inoue, Wataru Seto