Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified radiation sensitive composition with color...
Patent
1988-10-13
1990-07-17
Michl, Paul R.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Identified radiation sensitive composition with color...
430386, 430387, G03C 738
Patent
active
049421182
ABSTRACT:
Novel pyrazoloazole couplers comprise an aryl or heterocyclic group having, in at least one of the ortho positions to the carbon atom (A) that is bonded to the pyrazoloazole nucleus, a substituent (B) that enables the pyrazoloazole coupler to form a magenta dye that has increased stability and has absorption controllably shifted, that is shifted hypsochromically relative to a dye formed from a similar coupler lacking substituent (B). These couplers are useful in photogaphic silver halide materials and processes.
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Bowne Arlyce T.
Clarke David
Milner Nigel E.
Normandin Sharon E.
Buscher Mark R.
Eastman Kodak Company
Knapp Richard E.
Michl Paul R.
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