Photothermographic materials containing solubilized antifoggants

Aqueous-based photothermographic materials have improved stability to increase in Dmin during aging by including certain water-soluble or water-dispersible antifoggants that have a pKa of 8 or less. These antifoggants are represented by Structure I: R1-SO2-C(R2)R3-(CO)m-(L)n-SG Iwherein...

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Hauptverfasser:	KLAUS, ROGER L, BURGMAIER, GEORGE J
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AUXILIARY PROCESSES IN PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES PHOTOGRAPHY PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES PHYSICS
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Beschreibung
Zusammenfassung:	Aqueous-based photothermographic materials have improved stability to increase in Dmin during aging by including certain water-soluble or water-dispersible antifoggants that have a pKa of 8 or less. These antifoggants are represented by Structure I: R1-SO2-C(R2)R3-(CO)m-(L)n-SG Iwherein R1 is an aliphatic or cyclic group, R2 and R3 are independently hydrogen or bromine as long as at least one of them is bromine, L is an aliphatic divalent linking group, m and n are independently 0 or 1, and SG is a solubilizing group having a pKa of 8 or less.