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Patent Searching and Data


Title:
MANUFACTURE OF SILVER HALIDE PHOTOSENSITIVE EMULSION
Document Type and Number:
Japanese Patent JPH04289848
Kind Code:
A
Abstract:

PURPOSE: To manufacture an emulsion of high sensitivity with a small fog by using a new thioether compound.

CONSTITUTION: A new thioether compound is represented by a formula I. In the formula, it represents H, alkyl group and aryl group by R1, R2, alkylene group by R3 and 1 to 3 integers by (n). The new thioether compound is preferably added at silver halide precipitation producing time and its continued physical digestion time or at chemical digestion time, at the time of manufacturing an emulsion. In this way, the emulsion, formed of silver halide of large grain size, is obtained.


Inventors:
YAMADA MOTOSHIGE
MATSUBARA EIJI
MIURA TAKETOSHI
Application Number:
JP7853591A
Publication Date:
October 14, 1992
Filing Date:
March 18, 1991
Export Citation:
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Assignee:
MITSUBISHI PAPER MILLS LTD
International Classes:
G03C1/015; (IPC1-7): G03C1/015