Back to results
US 7,682,408 B2Granted
Disperse azo dyestuffs
AssigneeDy Star Textilfarben GmbH & Co.
InventorsAndreas Endres, Rainer Hamprecht, Hartwig Jordan, Anthony Lawrence, Nigel Hall
Life of this patent
Estimating the term…
Abstract
The present invention relates to a dyestuff of the formula (I) wherein each of G1 and G2, independently is hydrogen, (C1-C4)-alkyl, trifluoromethyl, halogen, nitro, cyano or —SO2—T, wherein T is halogen, (C1-C4)-alkyl, (C1-C4)-alkoxy, aryl or aryloxy; K is a coupling component; and n is 1 or 2. The invention also relates to a process for its preparation and their use and for ink jet printing containing the ink.
Claims12
A dyestuff the formula (Ia)
- wherein
- each of G1 and G2, independently is hydrogen, (C1-C4-alkyl, trifluoromethyl, halogen, nitro, cyano or —SO2—T wherein T is halogen, (C1-C4)-alkyl, (C1-C4)-alkoxy, aryl or aryloxy;
- K is a coupling component.
A dyestuff of the formula (Ic)
- wherein
- G1 is hydrogen, (C1-C4)-alkyl, trifluoromethyl halogen, nitro, cyano or —SO2—T, wherein T is halogen, (C1-C10-alkyl, (C1-C4)-alkoxy, aryl or aryloxy;
- K is a coupling component.
A dyestuff of the formula (Iaa)
- wherein
- each of G1 and G2, independently is hydrogen, chlorine, bromine, nitro or cyano;
- R1 is hydrogen, methyl, ethyl, methylsulfonylamino, acetylamino or propionylamino;
- each of R7 and R3, independently is hydrogen, methyl, ethyl, propyl or butyl or methyl, ethyl, propyl or butyl which is substituted by hydroxy, cyano, —COOCH3,
- —COOC2H5, —COOphenyl, —OCOCH3, —OCOC2H5, —OCOphenyl, methoxy, ethoxy or phenyl, or is allyl;
- and
- R4 is hydrogen, methyl, ethyl, methoxy, ethoxy or chlorine.
4 more elements
Dependencies are inferred from the claim text.