Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified radiation sensitive composition with color...
Patent
1984-08-23
1985-07-16
Downey, Mary F.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Identified radiation sensitive composition with color...
430550, 430551, 430564, 430599, G03C 726, G03C 102
Patent
active
045296901
ABSTRACT:
A color photographic element contains a compound of the following formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each represent hydrogen atom, or an alkyl or aryl group; Ar.sub.1 and Ar.sub.2 each represent an aryl group; and n and m each represent 1 or 2. The color element containing the above compound displays excellent sensitivity, gradation, and color-developability even when developing it with a color developer not substantially containing any benzyl alcohol.
REFERENCES:
patent: 3043697 (1962-07-01), Forsgard
patent: 4004928 (1977-01-01), Miyazawa et al.
Nakamura Shin-ichi
Ohbayashi Keiji
Bierman Jordan B.
Downey Mary F.
Konishiroku Photo Industry Co,., Ltd.
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