Minnesota Mining and Manufacturing Company

Imation Corporation

Ferrania

Mauro Besio

Angelo Vallarino

Alberto Valsecchi

Sergio Massirio

Alberto Vacca

Brunella Fornasari

Emilio Prosperi

Mario Mariotti

Corrado Balestra

Lorenzo Vittore

Piera Di Mito

Marcello Gagliano

Bruno Barletta

Giuseppe Rocca

Photographic dispersions for yellow filter dyes

A core-shell silver bromoiodide emulsion having an inner core portion consisting essentially of silver bromoiodide and an outer shell portion consisting essentially of silver bromoiodide, wherein said inner core portion has a silver iodide content ranging from 30 to 50 mol %, said outer shell portion has a silver iodide content ranging from 1 to 10 mol %, and the average total silver iodide content ranges from 5 to 12 mol %, and wherein the ratio between the area of the X-ray diffraction peak corresponding to said outer shell portion and the area of the X-ray diffraction peak corresponding to said inner core portion is higher than 9:1.

Silver bromoiodide core-shell grain emulsion

Light-sensitive silver halide photographic elements comprising a support bearing at least one gelatin-containing silver halide emulsion layer, wherein the silver halide emulsion is chemically sensitized with sulfur and gold in the presence of a sulfinic acid compound and the gelatin is hardened with a carbamoylpyridinium salt compound.

Hardened silver halide photographic elements

Process for preparing bisphenol fluorene compounds

A polymeric latex to load photographically useful compounds into photographic elements comprises, as a dispersed phase, fine particles of a hydrophobic polymer which, for at least 70% of its weight, comprises:

Silver halide photographic element, photographic coating composition and

An improved antistatic base comprises a polymeric support film having coated thereon in sequence a first antistatic layer comprising a quaternary polyelectrolyte compound and a polymeric hydrophobic binder and a second protective layer comprising a polymeric hydrophobic binder, wherein said quaternary polyelectrolyte compound is a homopolymer or a copolymer of a diallyldialkylammonium salt compound. The antistatic base is particularly useful as a support for light-sensitive silver halide photographic elements.

Antistatic photographic base and light-sensitive element

UV-sensitive direct positive silver halide photographic elements for duplicating processes which can be safely handled under white light, said elements comprising a support base, a hydrophilic colloidal silver halide emulsion layer comprising fogged silver halide grains, and one or more hydrophilic colloidal layers, wherein said silver halide emulsion is reactively associated with a water-removable UV-absorbing compound having at least 80% of the absorption in the range from 350 to 400 .mu.m.

White light handeable direct-positive silver halide photographic elements

Growing community of inventors

Vado Ligure, Italy

Mauro Besio