Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Antihalation or filter layer containing
Patent
1986-03-14
1987-10-20
Louie, Won H.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Antihalation or filter layer containing
430533, 430592, 430593, 430596, 430597, 430581, G03C 122, G03C 1485
Patent
active
047013982
ABSTRACT:
A new group of cyanine and merocyanine spectral sensitizing dyes based on derivatives of 3-indolizine carboxaldehyde is particularly useful in sensitizing a direct positive silver halide emulsion to orange and red.
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E. I. Du Pont de Nemours and Company
Louie Won H.
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