Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Two or more radiation-sensitive layers containing other than...
Patent
1985-02-06
1986-01-14
Louie, Won H.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Two or more radiation-sensitive layers containing other than...
430502, 430506, 430966, 430967, 430408, 430495, 430606, G03C 136, G03C 184
Patent
active
045645884
ABSTRACT:
Silver halide photographic material for radiography comprising a transparent support having a hydrophilic colloid layer coated on each side thereof said layer comprising (a) photosensitive silver halide grains, (b) silver halide grains having surfaces covered with a solubility reducing agent and which, in the absence of said solubility reducing agent, are more soluble in a material capable of dissolving silver halide than said (a), said (b) having a sensitivity to light generally less than 1/10 that of said (a), and (c) physical development nuclei, wherein the molar ratio of (a) to (b), based on the silver content of each, is between 1:0.1 to 1:0.8 on each side of said support and the total silver content of (a) and (b) is from 1 to 8 g/m.sup.2.
REFERENCES:
patent: 3671254 (1972-06-01), Dostes
patent: 3923515 (1975-12-01), Van Stappen
Kawasaki Mikio
Ono Kouji
Sakamoto Eiichi
Yoshizawa Tomomi
Bierman Jordan B.
Konishiroku Photo Industry Co,., Ltd.
Louie Won H.
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