Photothermographic materials

Details Photothermographic materials Photothermographic materials

1997-03-05

1999-09-14

Chea, Thorl

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430600, 430607, 430613, 430614, 430617, G03C 1498, G03C 134

Patent

active

059521678

ABSTRACT:
A photothermographic material comprising (a) a reducible silver source, (b) a photocatalyst, (c) a reducing agent, (d) a binder, and (e) a compound represented by the following formula (I): wherein Q represents an atomic group necessary to form a six-membered heterocycle containing two to four nitrogen atoms; Y represents --CO--, --SO--, or --SO.sub.2 --; X.sub.1 and X.sub.2 each represent a halogen atom; and A represents a hydrogen atom or an electron withdrawing group, the photothermographic material exhibiting low fogging without deterioration in image tone and sensitivity decrease.

REFERENCES:
patent: 3874946 (1975-04-01), Costa et al.
patent: 3874949 (1975-04-01), Kaneda et al.
patent: 4756999 (1988-07-01), Swain et al.
patent: 5340712 (1994-08-01), Dunn et al.
patent: 5374514 (1994-12-01), Kirk et al.
patent: 5656419 (1997-08-01), Toya et al.

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