×

Reactive dyes, processes for their preparation and their use

  • US 6,592,634 B1
  • Filed: 03/09/2000
  • Issued: 07/15/2003
  • Est. Priority Date: 03/15/1999
  • Status: Expired due to Fees
First Claim
Patent Images

1. A reactive dye of the formula (1) embedded imagein whichR1, R2, R3 and R4 independently of one another are hydrogen or substituted or unsubstituted C1-C4alkyl, (R5)0-2 and (R6)0-2 independently of one another are 0 to 2 identical or different substituents selected from the group consisting of C1-C4alkyl, C1-C4alkoxy, C2-C4alkanoylamino, halogen, carboxyl, sulfo, carbamoyl, N-C1-C4alkylcarbamoyl, N,N-di-C1-C4alkylcarbamoyl, C1-C4alkylsulfonyl, sulfamoyl, N-C1-C4alkylsulfamoyl and N,N-di-C1-C4alkylsulfamoyl, A is hydrogen or C1-C4alkyl which is unsubstituted or substituted by hydroxyl, sulfo, carboxyl or sulfato;

  • phenyl or naphthyl which are unsubstituted or substituted by C1-C4alkyl, C1-C4alkoxy, C2-C4alkanoylamino, hydroxyl, carboxyl, carbamoyl, sulfo or halogen;

    phenyl-C1-C4alkylene which is unsubstituted or substituted in the phenyl ring by C1-C4alkyl, C1-C4alkoxy, C2-C4alkanoylamino, hydroxyl, carboxyl, sulfo, carbamoyl, ureido or halogen;

    or C5-C7cycloalkyl which is unsubstituted or substituted by C1-C4alkyl, B1 is a C2-C12alkylene radical, which can be interrupted by 1, 2 or 3 members selected from the group consisting of —

    NH—

    , —

    N(CH3)—

    or —

    O— and

    is unsubstituted or substituted by hydroxyl, sulfo, sulfato, cyano or carboxyl;

    a C5-C9-cycloalkylene radical, C1-C6alkylenephenylene radical or phenylene radical which are unsubstituted or substituted by C1-C4alkyl, C1-C4alkoxy, C2-C4alkanoylamino, sulfo, halogen or carboxyl;

    or the radical of the formula embedded image

    is a radical of the formula embedded imageD1 is a mono- or disazo radical of the formula (4) or (5)  

    D*—

    N═

    N—

    (M—

    N═

    N)u

    K—





    (4)or

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×