Radiation imagery chemistry: process – composition – or product th – Thermographic process – Heat applied after imaging
Patent
1985-12-18
1987-07-07
Schilling, Richard L.
Radiation imagery chemistry: process, composition, or product th
Thermographic process
Heat applied after imaging
430203, 430219, 430351, 430611, 430617, 430619, 430955, 430957, 430959, G03C 554, G03C 134, G03C 526
Patent
active
046787399
ABSTRACT:
A method for forming an image which has a step of heating an image-forming material in the presence of a compound represented by formula (I), whereby unevenness of image density and increase in fog due to fluctuation of development temperature, which have so far been caused in heat-developable photosensitive materials, can be prevented from occurring: ##STR1## wherein R represents a hydrogen atom, or a group selected from a class consisting of groups represented by formulae (A) to (C) ##STR2## wherein R.sup.11 and R.sup.12 each represents a substituted or unsubstituted alkyl group, a cycloalkyl group, a substituted or unsubstituted alkenyl group, an aralkyl group, a substituted or unsubstituted aryl group, a heterocyclic group, an alkyloxy group, an aryloxy group, an alkylthio group, an arylthio group, or a substituted or unsubstituted amino group, or R.sup.11 and R.sup.12 combine with each other to form a 5- or 6-membered ring;
REFERENCES:
patent: 4416977 (1983-11-01), Ohashi et al.
patent: 4420554 (1983-12-01), Ohashi et al.
patent: 4503139 (1985-03-01), Bartels-Keith et al.
Kato Masatoshi
Kitaguchi Hiroshi
Sato Kozo
Takeuchi Masashi
Tsukase Masaaki
Fuji Photo Film Co. , Ltd.
Schilling Richard L.
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