Pyridone dyes, a process for their preparation and their use...

Details Pyridone dyes, a process for their preparation and their use... Pyridone dyes, a process for their preparation and their use...

2005-10-11

2005-10-11

Powers, Fiona T. (Department: 1626)

Organic compounds -- part of the class 532-570 series

Organic compounds

Azo

C534S772000, C524S190000

Reexamination Certificate

active

06953846

ABSTRACT:
The present invention relates to pyrifone azo dyes of formula (1), wherein A is the radical of a diazo component of the benzene, naphthalene, diphenyl, azobenzene, thiophene, benzothiazole, benzoisothiazole, thiadiazole, indazole, benzotriazole, pyrazole, anthraquinone, naphttholic acid imide, chromone, phthalimide or diphenylene oxide series, R1is hydrogen, unsubstituted or hydroxyl- or phenyl-substituted C1-C6alkyl, it being possible for the alkyl chain to be interrupted from C3upwards by one or more oxygen atoms, or has the meanings of R2, R2is a radical of formulae (2), (3), (4), (5), (6), or (7), wherein B is a bridging member, R4is alkyl or aryl, R5and R6are each independently of the other alkyl, aryl or heteroaryl and A is as defined for formula (1), or R1and R2toghether with the nitrogen atom in NR1R2form a heterocyclic ring, Y is cyano, —CONH2or CH2SO3H, and n is an integer from 2 to 6, to a process for their preparation and to their use in the production coloured plastics or polymeric color particles.

REFERENCES:
patent: 5038415 (1991-08-01), Ueda et al.
patent: 5151506 (1992-09-01), Bach et al.
patent: 5550098 (1996-08-01), Aso et al.
patent: 0763576 (1997-03-01), None
patent: 1041121 (2000-10-01), None
patent: 1296857 (1972-11-01), None
patent: 1361250 (1974-07-01), None
patent: 08-108637 (1996-04-01), None

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