Eastman-kodak Company

Roger J Owers

Mark Lelental

Paul Albert Christian

Michael W Orem

Anthony M Barnett

James L Wakley

Gary M Mosehauer

David A Hallbery

Image-forming materials including photographic, thermographic, and thermally-developable imaging materials include one or more transparent electrically conductive, non-charging layers to provide antistatic control on one or both sides of subbed or unsubbed supports. The electrically conductive, non-charging layers comprise colloidal, electrically conductive polymer particles that can be dispersed in a film-forming binder in an amount to provide from about 10 to about 90 volume % of polymer particles. Particularly useful polymer particles include pyrrole-containing, thiophene-containing, and aniline-containing polymers. The particles generally exhibit a packed powder specific resistivity of 10 ohm-cm or less and generally have a mean diameter of 0.5 &mgr;m or less. The electrically conductive, non-charging layers generally exhibit a surface electrical resistivity of less than 1&times;10 ohm per square.

Imaging materials comprising electrically conductive polymer particle layers

The present invention is a multilayer imaging element which includes a support, one or more image-forming layers super posed on the support; and an outermost transparent electrically-conductive, non-charging, overcoat layer superposed on the support. The outermost transparent electrically-conductive, non-charging overcoat layer includes colloidal, electrically-conductive metal-containing granular particles, dispersed in a film-forming binder at a volume percentage of conductive metal-containing particles of from 20 to 80 and a first charge control agent which imparts positive charging properties and a second charge control agent which imparts negative charging properties.

Electrically-conductive overcoat for photographic elements

Photographic donor material with non-photosensitive silver halide layer

Growing community of inventors

Leighton Buzzard, United Kingdom

Roger J Owers