Photothermographic element comprising improved base...

Details Photothermographic element comprising improved base... Photothermographic element comprising improved base...

2006-04-18

2006-04-18

Chea, Thorl (Department: 1752)

Radiation imagery chemistry: process, composition, or product th

Thermographic process

Heat applied after imaging

51, 51, 51, 51, 51

Reexamination Certificate

active

07029835

ABSTRACT:
Photothermographic elements employing improved base precursors that undergo thermal decomposition are disclosed. Thermal-dye-bleach agents, and in particular, a novel class of salts of arylsulfonylacetic acids as bleaching agents for photothermographic use are disclosed. Photothermographic elements employing these thermal-dye-bleach agents are suitable for use as acutance and antihalation systems, bleachable filter dye materials, and in promoting unblocking of various components such as blocked developers, especially in photothermographic elements.

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