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US 7,686,852 B2Granted
Monoazo dyes
AssigneeClariant Finance (BVI) Limited
InventorsGeorg Schoefberger, Urs Daettwyler
Life of this patent
Estimating the term…
Abstract
Compounds of the general formula (I) a process for their preparation and their use for dyeing and/or printing organic substrates.
Claims9
A compound of formula (I)
- wherein
- R1 is unbranched or branched C-6alkyl,
- R2 is H or methyl or unbranched C2-4alkyl or branched C3-4alkyl,
- R3 is H or methyl or unbranched C2-4alkyl or branched C3-4alkyl or methoxy or unbranched —OC2-4alkyl or branched —OC3-4alkyl or —NHCO—(C1-4alkyl) with an unbranched C1-4alkyl group or —NHCO—(C3-4alkyl) with a branched C3-4alkyl group.
1 more element
Dependencies are inferred from the claim text.