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Shifted photographic dyes and compositions, elements and processes employing them
T999003 Shifted photographic dyes and compositions, elements and processes employing them
Patent Drawings:

Inventor: Ford, et al.
Date Issued: October 7, 1980
Application: 06/143,659
Filed: April 25, 1980
Inventors: Ford; John A. (Rochester, NY)
Lestina; Gregory J. (Rochester, NY)
Primary Examiner:
Assistant Examiner:
Attorney Or Agent:
U.S. Class: 430/223; 534/753
Field Of Search:
International Class:
U.S Patent Documents:
Foreign Patent Documents:
Other References:

Abstract: Shifted photographic dyes which have good storage stability, yet rapidly unblock under processing conditions contain a blocked hydroxy group and a neighboring group that anchimerically assists the hydrolytic cleavage of the blocking group under processing conditions.
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