Thermal base precursors

Details Thermal base precursors Thermal base precursors

2005-12-13

2005-12-13

Chea, Thorl (Department: 1752)

Radiation imagery chemistry: process, composition, or product th

Thermographic process

Heat applied after imaging

C430S021000, C430S510000, C430S513000, C430S529000, C430S607000, C430S619000, C430S631000, C430S955000, C430S956000, C430S957000, C430S964000

Reexamination Certificate

active

06974662

ABSTRACT:
Improved compounds and base precursors that undergo thermal decomposition are disclosed. Thermal base precursors, and in particular, a novel class of salts of arylsulfonylacetic acids as bleaching agents or promoting for photothermographic use are disclosed. Compositions employing these thermal base precursors are suitable for use in 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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C. Handsch and A.J. Leo, in “Substituent Constants for Correlation Analysis in Chemistry and Biology”, Willey, New York, 197.
STIC Search Report, pp. 1-8.

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