Minnesota Mining and Manufacturing Company

Eastman-kodak Company

3m Innovative Properties Company

Charles W Gomez

William Donald Ramsden

Randall H Helland

James B Philip, Jr

Tran V Thien

Lori S Harring

Steven Richard Austin

Stable antihalation materials for photographic and photothermographic elements

Polymeric film may be provided with an antistatic coating comprising an oleophilic polymeric film forming binder and a fluorinated ionic polyoxyalkylene antistatic agent in an organic solvent system. The coated film base with the antistatic layer is particularly useful in preventing static problems in photothermographic elements when thermally developed in heated rollers.

Polymeric film base having a coating layer of organic solvent based polymer with a fluorinated antistatic agent

A photothermographic element comprising a substrate having on at least one side thereof a photothermographic system comprising silver halide spectrally sensitized to the infrared region of the electromagnetic spectrum, a light insensitive silver source, a reducing agent for silver ion, and a binder, said element further comprising at least one layer which contains an infrared-absorbing dye having a central nucleus of the formula ##STR1## wherein n is an integer of 1 to 12,

Photothermographic elements incorporating antihalation dyes

Dihydroperimidine squarylium dyes have been found to be particularly effective when used in acutance and antihalation systems for photothermographic and photographic articles.

Dihydroperimidine squarylium dyes as antihalation and acutance materials

Growing community of inventors

Cottage Grove, MN, United States of America

Charles W Gomez