Photothermographic element

Details Photothermographic element Photothermographic element

1998-10-02

2000-11-28

Chea, Thorl

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430611, 430613, 430615, 430944, C03C 404

Patent

active

061533726

ABSTRACT:
A photothermographic element contains a non-photosensitive organic silver salt, a photosensitive silver halide which has been formed independent of the non-photosensitive organic silver salt, and a binder. An image forming layer contains the photosensitive silver halide, a latex of a polymer having a Tg of -30.degree. C. to 40.degree. C. as a main binder, and a compound of formula (I): ##STR1## wherein X is --N.dbd., --N(R)--, --0--, or --S--, wherein R is hydrogen, hydroxyl, aliphatic hydrocarbon, aryl or heterocyclic group, Z is a single bond or a group of atoms necessary to form a 5- to 7-membered ring with X, and Q.sub.1 and Q.sub.2 each are a group of atoms necessary to form an aromatic hydrocarbon or heterocyclic ring fused to the ring completed by Z.

REFERENCES:
patent: 4607006 (1986-08-01), Hirano et al.
patent: 5541054 (1996-07-01), Miller et al.
patent: 5851755 (1998-12-01), Uytterhoeven et al.
patent: 5869229 (1999-02-01), Okada et al.

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