| 摘要 |
The present invention relates to pyridone dyes of formula (1), wherein R is a radical -(CR'H)<SUB>n</SUB>-W, R' is hydrogen, C<SUB>1</SUB>-C<SUB>2</SUB>alkyl or phenyl, Y is cyano, -CONH<SUB>2 </SUB>or -CH<SUB>2</SUB>SO<SUB>3</SUB>H, W is hydrogen, a radical -NR<SUB>1</SUB>R<SUB>2 </SUB>or a radical -OR<SUB>3</SUB>, R<SUB>1 </SUB>and R<SUB>2 </SUB>are each independently of the other hydrogen, unsubstituted or hydroxy- or phenyl-substituted C<SUB>1</SUB>-C<SUB>6</SUB>-alkyl, it being possible for the alkyl chain from C<SUB>3 </SUB>upwards to be interrupted by one or more oxygen atoms, or a radical of formula (3), (4) or (5), or R<SUB>1 </SUB>and R<SUB>2 </SUB>together with the nitrogen atom in -NR<SUB>1</SUB>R<SUB>2 </SUB>form a heterocyclic ring, R<SUB>3 </SUB>is hydrogen, unsubstituted or hydroxy-substituted C<SUB>1</SUB>-C<SUB>6</SUB>alkyl, phenyl or a radical of formula (6), R<SUB>4 </SUB>is alkyl or aryl, R<SUB>5 </SUB>and R<SUB>6 </SUB>are each independently of the other alkyl, aryl or heteroaryl, n is an integer from 2 to 6, and m is an integer from 1 to 6, a process for the preparation thereof and their use in the production of coloured plastics or polymeric colour particles
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