Photothermographic element

Details Photothermographic element Photothermographic element

1999-03-17

2000-08-08

Chea, Thorl

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430264, 430531, 430536, 430613, G03C 1498

Patent

active

061000221

ABSTRACT:
In a photothermographic element comprising a non-photosensitive silver salt, a photosensitive silver halide, and a binder on a support, a latex of a polymer having a Tg of -30.degree. C. to 40.degree. C. constitutes at least 50% by weight of the binder in an image forming layer containing the silver halide, and the image forming layer or a layer disposed adjacent thereto or both contain a nucleating agent. The element on the image forming layer side has a film surface pH of 5.0-7.0. The element produces a low fog, ultrahigh contrast image and maintains ultrahigh contrast characteristics with a wide latitude under varying development conditions.

REFERENCES:
patent: 4824774 (1989-04-01), Inoue et al.
patent: 5496695 (1996-03-01), Simpson et al.
patent: 5545515 (1996-08-01), Murray et al.
patent: 5723273 (1998-03-01), Anderson et al.

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