Process for forming an image using novel magneta couplers for co

Details Process for forming an image using novel magneta couplers for co Process for forming an image using novel magneta couplers for co

1997-10-06

1998-12-15

Letscher, Geraldine

Radiation imagery chemistry: process, composition, or product th

Nonradiation sensitive image processing compositions or...

Developer

430464, 430467, 430476, 430434, 430435, 430558, 430387, G03C 518, G03C 526

Patent

active

058494693

ABSTRACT:
The invention provides a novel magenta coupler of the formula (I) ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and are selected from H, alkyl, substituted alkyl, aryl, substituted aryl, heteroaryl, alkylthio, carboxylic acid or ester, primary or secondary amido, sulphonamido, mono or disubstituted amino, alkoxy or aryloxy; and

REFERENCES:
patent: 4910127 (1990-03-01), Sakaki et al.
Research Disclosure 16216, pp, 73-75, 1977 (Bogie and Norris).
James The Theory of the Photographic Process, 3rd Ed. 1966, p. 387.

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