Photothermographic materials

Details Photothermographic materials Photothermographic materials

G - Physics

03

C

96/114

G03C 1/34 (2006.01) C07D 209/10 (2006.01) G03C 1/498 (2006.01)

Patent

CA 1282625

ABSTRACT PHOTOTHERMOGRAPHC MATERIALS A photothermographic element comprising a substrate having coated thereon a photothermographic medium comprising a binder having dispersed therein an organic silver salt or complex, a photocatalyst and a reducing agent, characterised in that the photothermographic medium contains as an antifoggant, in the absence of mercury compounds, an effective antifogging amount of a compound of the general formula: Image (I) characterised in that: X1 and X2 independently represent halogen atoms, X3 represents a halogen atom or an electron withdrawing substituent, and Z represents the necessary atoms to complete a ring system which may comprise a single ring or a fused ring system which rings may bear substituents.

521556

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