Diazo-type recording material comprising a 1-phenyl-3-pyrazolido

Details Diazo-type recording material comprising a 1-phenyl-3-pyrazolido Diazo-type recording material comprising a 1-phenyl-3-pyrazolido

1992-11-17

1995-04-18

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Microcapsule, process, composition, or product

430157, 430173, 430177, 430179, 430182, G03C 172, G03C 161, G03C 158

Patent

active

054077770

ABSTRACT:
A diazo-type recording material comprising a support having thereon a recording layer comprising a photosensitive diazo compound enclosed in microcapsules, a coupling component which reacts with said diazo compound by heating at a basic pH to develop a color, and a 1-phenyl-3-pyrazolidone compound represented by the formula: ##STR1## wherein the substituents X, and R.sub.1 -R.sub.4 are defined in the specification.

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patent: 4760048 (1988-07-01), Kurihara et al.
patent: 4980260 (1990-12-01), Shinozaki et al.
Wiley, Richard and Wiley Paul, "Pyrazolones, Pyrazolidones, and Derivatives", pp. 3-12 1964.

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