BLUE ANTHRAQUINONE DYES, PRODUCTION AND USE THEREOF
The present invention concerns dyes of the general formula I where X and Y represent hydrogen, bromine or chlorine, but not simultaneously hydrogen; R represents F, Cl, Br, COOR1 or CF3; R′ represents H or F; R1 represents C1-C6-alkyl; and one of W1 and W2 represents hydroxyl and the other nitro and...
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Main Authors | , |
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Format | Patent |
Language | English French German |
Published |
17.06.2009
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Subjects | |
Online Access | Get full text |
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Summary: | The present invention concerns dyes of the general formula I where X and Y represent hydrogen, bromine or chlorine, but not simultaneously hydrogen; R represents F, Cl, Br, COOR1 or CF3; R′ represents H or F; R1 represents C1-C6-alkyl; and one of W1 and W2 represents hydroxyl and the other nitro and Y is always ortho to the hydroxyl group; but not compounds in which R represents Cl attached to the phenyl nucleus in a is position ortho to the NH group nor compounds in which W1 represents nitro, W2 represents hydroxyl, Y represents hydrogen, X represents chlorine and R represents bromine attached to the phenyl nucleus in a position meta to the NH group, mixtures with further dyes, and also their preparation and use. |
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Bibliography: | Application Number: EP20070802857 |