Radiation imagery chemistry: process – composition – or product th – Diazo reproduction – process – composition – or product – Diazo-type process – i.e. – producing dye image by reacting...
Patent
1988-03-01
1990-06-26
Bowers, Jr., Charles L.
Radiation imagery chemistry: process, composition, or product th
Diazo reproduction, process, composition, or product
Diazo-type process, i.e., producing dye image by reacting...
430142, 430145, 430149, 430175, 430176, 430180, 430181, 430292, 430300, 430302, G03F 708, G03C 534
Patent
active
049371703
ABSTRACT:
A photographic element formed from a substrate and light sensitive coating on the substrate wherein the coating comprises a mixture of a diazo compound and an aromatic carboxylic coupling agent having phenolic hydroxy groups, in an acidic medium.
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Bowers Jr. Charles L.
Hoechst Celanese Corporation
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