High chloride {100} tabular grain emulsions improved by peptizer

Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Silver compound sensitizer containing

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430569, 430639, 430641, G03C 1035, G03C 1015

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active

056078285

ABSTRACT:
A radiation-sensitive emulsion comprised of silver halide grains including tabular grains (a) having {100} major faces, (b) containing greater than 50 mole percent chloride, based on silver, (c) accounting for greater than 30 percent of total grain projected area, (d) exhibiting an average thickness of less than 0.3 .mu.m, and (e) exhibiting an average aspect ratio of greater than 5, and a dispersing medium including a peptizer adsorbed to the silver halide grains, wherein the peptizer is a water dispersible oxidized cationic starch.

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