Eastman-kodak Company

Harry J Krall

Chen-i Lu

Edward D Morrison

David L Carr

Herman R Osmers

Incorporation of a polyethoxylated phosphate ester in a film-forming composition containing a cellulose ester dissolved in a solvent medium has been found to promote stripping of the film from the surface on which it is cast. Such use of polyethoxylated phosphate esters as stripping aids is especially advantageous in the manufacture of cellulose ester film base in the photographic industry.

Manufacture of cellulose ester film

Photographic elements are provided with a magnetic stripe that is useful for sound recording by applying a magnetic striping composition, containing finely-divided magnetic particles and an acrylated epoxy resin, over the anti-halation layer of the element. The striping composition penetrates the anti-halation layer to contact the support and is cured to an alkali-insoluble cross-linked stripe which is composite with the anti-halation layer and strongly bonded to the support so as to resist removal by alkaline photographic processing solutions.

Photographic element provided with a magnetic recording stripe and

Phosphorescent screens which are useful for such purposes as intensifying screens for radiographs are comprised of a support on which is coated a layer of finely-divided particles of a phosphor dispersed in a polymeric binder which has been cured by radiation. The phosphor layer includes voids formed by evaporation of a component which is present in the coating composition from which such layer is formed. Curing of the binder is carried out by use of suitable radiation, such as ultraviolet light or high energy ionizing radiation, and evaporation of the void forming component is carried out simultaneously with or subsequent to the radiation-curing of the binder.

Growing community of inventors

Webster, NY, United States of America

Harry J Krall