Minnesota Mining and Manufacturing Company

Luigi Cellone

Angelo Vallarino

Marco Loiacono

Giovanni Giusto

Mario Mariotti

Brunella Fornasari

Franco Leoncini

Roberto Leoncavallo

Photographic assemblage comprising a silver halide photographic element sealed in a closed vessel

There is disclosed a light-sensitive silver halide photographic element comprising at least one hydrophilic colloid layer containing a dihalogenonitriloacylamino compound in combination with a phenolic biocide.

Silver halide photographic elements containing biocides

Light-sensitive silver halide photographic materials are disclosed comprising a support and silver halide emulsion layer or layers, wherein at least one of said silver halide emulsion layers contains tabular silver halide grains having an average diameter:thickness ratio of at least 3:1 and at least one resorcinol. The light-sensitive materials can be advantageously used in high temperature processing without causing serious fog problems.

Light-sensitive silver halide photographic material

Silver halide grains with high sensitivity are provided with iodobromide grains having at least 12% nominal iodide molar content, the grains including at least three different iodobromide phases having different iodide contents, the most external phase having an iodide content lower than the nominal iodide content.

Photographic silver halide emulsions, process for preparing the same and

It is generally undesirable to have surfaces on photographic elements which are highly reflective and therefore reduce the attractiveness of the image. One of the traditional means of correcting this reflectance is to coat the developed film or print with an anti-reflective coating or to place a glass cover over the imaged photographic element where the glass itself has an anti-reflective surface. According to the present invention, an anti-reflective surface may be provided within the photographic element itself by including within a top coat gelatin layer a combination of a first water-soluble soft matting agent incompatible with gelatin and a second water-insoluble soft matting agent.

Photographic elements with improved surface characteristics

It is generally undesirable to have surfaces on photographic elements which are highly reflective and therefore reduce the attractiveness of the image. One of the traditional means of correcting this reflectance is to coat the developed film or print with an anti-reflective coating or to place a glass cover over the imaged photographic element where the glass itself has an anti-reflective surface. According to the present invention, an anti-reflective surface may be provided within the photographic element itself by including within a top coat gelatin layer a water-soluble dextran incompatible with gelatin.

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Albisola Marina, Italy

Luigi Cellone