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

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

2005-06-14

2005-06-14

Seaman, D. Margaret (Department: 1625)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C546S264000

Reexamination Certificate

active

06906195

ABSTRACT:
The present invention relates to pyridone dyes of formula (1), wherein R is a radical —(CR′H)n—W, R′ is hydrogen, C1-C2alkyl or phenyl, Y is cyano, —CONH2or —CH2SO3H, W is hydrogen, a radical —NR1R2or a radical —OR3, R1and R2are each independently of the other hydrogen, unsubstituted or hydroxy- or phenyl-substituted C1-C6-alkyl, it being possible for the alkyl chain from C3upwards to be interrupted by one or more oxygen atoms, or a radical of formula (3), (4) or (5), or R1and R2together with the nitrogen atom in —NR1R2form a heterocyclic ring, R3is hydrogen, unsubstituted or hydroxy-substituted C1-C6alkyl, phenyl or a radical of formula (6), R4is alkyl or aryl, R5and R6are 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

REFERENCES:
patent: 4079052 (1978-03-01), Muller
patent: 4487855 (1984-12-01), Shih et al.
patent: 5153068 (1992-10-01), Kohara et al.
patent: 5421872 (1995-06-01), Haus et al.
patent: 5599354 (1997-02-01), Adam et al.
patent: 0 648 816 (1994-10-01), None
patent: 0638620 (1995-02-01), None

Affiliated with

Also associated with

Rating

Pyridone dyes, a process for the preparation and their use... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pyridone dyes, a process for the preparation and their use..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pyridone dyes, a process for the preparation and their use... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3473525