Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified radiation sensitive composition with color...
Patent
1987-04-08
1988-11-01
Michl, Paul R.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Identified radiation sensitive composition with color...
430372, G03C 134, G03C 726
Patent
active
047820110
ABSTRACT:
A photographic element comprising a support having thereon at least one silver halide emulsion layer having associated therewith a dye-forming coupler and a dye stabilizer comprising a bisphenol derivative having two linked phenol rings, one of the phenolic hydroxy groups being substituted and at least one of the phenol rings being substituted.
In a preferred embodiment, the bisphenol derivative has the following formula: ##STR1## wherein A is a substituted or unsubstituted alkyl, cycloalkyl, alkenyl, aryl, acyl, alkylsulfonyl or arylsulfonyl group;
REFERENCES:
patent: 4207393 (1980-06-01), Snyder
patent: 4363873 (1982-12-01), Boon et al.
patent: 4594314 (1986-06-01), Kimura et al.
patent: 4621047 (1986-11-01), Kishimoto et al.
Goddard John D.
Leyshon Llewellyn J.
Milner Nigel E.
Cole Harold E.
Eastman Kodak Company
Michl Paul R.
Wright Lee C.
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