N-aminopyridone dyes

Details N-aminopyridone dyes N-aminopyridone dyes

1995-06-06

1997-08-05

Grumbling, Matthew V.

Radiation imagery chemistry: process, composition, or product th

Transfer procedure between image and image layer, image...

Diffusion transfer process, element, or identified image...

430203, 430235, 430351, 544105, 544131, 544148, 544149, 546171, 546174, 546193, 546194, 5462707, 5462774, 5462814, 5462764, 5462771, 546256, 5462787, 546261, C07D21389, C07D21538, C07D26536, C07D27738

Patent

active

056541228

ABSTRACT:
Pyridone dyes useful for thermal transfer have the formula ##STR1## where R.sup.1 is hydrogen or C.sub.1 -C.sub.4 - alkyl,

REFERENCES:
patent: 3725383 (1973-04-01), Austin et al.
patent: 4102880 (1978-07-01), Seitz
patent: 4734349 (1988-03-01), Chapman et al.

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