Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified radiation sensitive composition with color...
Patent
1992-04-23
1993-11-16
Wright, Lee C.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Identified radiation sensitive composition with color...
430387, G03C 7384
Patent
active
052622924
ABSTRACT:
Pyrazolone magenta dye-forming couplers having a particular arylthio coupling-off group enhance the photographic properties and improve the manufacturing and handling characteristics of materials and processes employing such couplers. The coupler contains an N-phenyl group, a 3-anilino group and a 4-(arylthio) coupling off group containing a particular aryloxymethylacylamino group as an ortho substituent. A broad range of improvements are realized including stability, reactivity, hue, and dye density in addition to simplified and safer manufacture.
The coupler may be represented by the following formula where the substituents and variables are as defined in the specification: ##STR1##
REFERENCES:
patent: 3227555 (1966-01-01), Van Norman
patent: 3519429 (1992-07-01), Lestina
patent: 4413054 (1983-11-01), Mitsui et al.
patent: 4853319 (1989-08-01), Krishnamurthy et al.
patent: 4876182 (1989-10-01), Buckland et al.
patent: 4929540 (1990-05-01), Furutachin et al.
patent: 4990276 (1991-02-01), Bishop et al.
patent: 5096805 (1992-03-01), Aoki et al.
Bailey David S.
Flow Vincent J.
Giacherio David J.
Krishnamurthy Sundaram
Pawlak John L.
Eastman Kodak Company
Kluegel Arthur E.
Wright Lee C.
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