Title:
SILVER HALIDE PHOTOGRAPHIC ELEMENT
Document Type and Number:
Japanese Patent JPS59201045
Kind Code:
A
Abstract:
PURPOSE: To improve storage stability by using a specified compd. as a fogging agent in a silver halide photographic element having an emulsion layer and forming a positive type image.
CONSTITUTION: A compd. to be used as a fogging agent in a hydrophilic colloid for composing an emulsion layer in this invention is represented by the formula shown here in which R1 is H, alkyl, cycloalkyl, aryl, heterocyclic, or the like, and R2 is H, alkyl, cycloalkyl, or aryl. This fogging agent is obtained by reacting thiocarboxylic acid ester or dithiocarboxylic acid ester with hydrazide or semicarbazide or the like.
Inventors:
WATANABE KAZUMASA
IKEUCHI SATORU
KOBAYASHI TATSUHIKO
OGI KEIJI
TOSAKA YASUO
IKEUCHI SATORU
KOBAYASHI TATSUHIKO
OGI KEIJI
TOSAKA YASUO
Application Number:
JP7721383A
Publication Date:
November 14, 1984
Filing Date:
April 30, 1983
Export Citation:
Assignee:
KONISHIROKU PHOTO IND
International Classes:
C07C67/00; C07C325/00; C07C337/06; G03C1/485; (IPC1-7): C07C159/00
Attorney, Agent or Firm:
Yoshimi Kuwahara
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