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US 6,319,289 B1Granted
Organic compounds
AssigneeClariant Finance (BVI) Limited
InventorGeorg Schöfberger
Life of this patent
Estimating the term…
Abstract
Compounds of formula (I) wherein A is hydrogen or a descretionary radical, a novel process for their preparation and their use for the dyeing of organic substrates.
Claims11
Compounds of formula (I)
- wherein A is hydrogen or a monosubstituted discretionary substituent and R is a discretionary radical on the sulfone group.
Compounds of formula (I)
- wherein A is hydrogen or a substituted alkyl or aryl radical and R is a substituted alkyl, cycloalkyl or aryl radical.
Compounds of formula (I)
- wherein A is hydrogen or a substituted alkyl or aryl radical and R is selected from the group of:
Dependencies are inferred from the claim text.