Photothermographic articles containing novel barrier layers

Details Photothermographic articles containing novel barrier layers Photothermographic articles containing novel barrier layers

1992-07-16

1994-01-04

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified backing or protective layer containing

430203, 430214, 430215, 430523, 430961, G03C 800, G03C 176

Patent

active

052759270

ABSTRACT:
Photothermographic articles containing interfacial barriers comprising a layer of a polymeric organic acid containing carboxyl and/or sulfo groups in direct contact with an adjacent layer comprising a basic polymer capable of forming hydrogen bonds with the polymeric organic acid are disclosed. A crosslinked barrier is formed at the interface between the layers which has substantial impermeability to chemical diffusion.

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