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Cyan dye-forming couplers
T101601 Cyan dye-forming couplers
Patent Drawings:

Inventor: Lau
Date Issued: March 2, 1982
Application: 06/280,594
Filed: July 6, 1981
Inventors: Lau; Philip T. S. (Rochester, NY)
Primary Examiner:
Assistant Examiner:
Attorney Or Agent:
U.S. Class: 430/17; 430/384; 430/385; 430/552; 430/553; 568/716
Field Of Search:
International Class:
U.S Patent Documents:
Foreign Patent Documents:
Other References:

Abstract: Novel phenolic cyan dye-forming couplers contain in the 2-position a p-cyanophenylureido group. These couplers are useful in photographic emulsions, elements and processes.
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