Minnesota Mining and Manufacturing Company

Steven Swain

Tran V Thien

Stephen S Poon

Ronald E Watts

A photothermographic element comprising a support bearing an image forming system comprising:

Photothermographic elements

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, characterized 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: ##STR1## characterized in that: X.sup.1 and X.sup.2 independently represent halogen atoms,

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Bishop's Stortford, United Kingdom

Steven Swain