Agfa Gevaert Nv

Agfa-gevaert

Bayer Aktiengesellschaft

Agta-gevaert Ag

Hartwig Andries

Etienne A Van Thillo

Werner Krafft

Willem Mues

Johan August Loccufier

Rolf Wehrmann

Friedrich Jonas

Andreas Elschner

David R Terrell

Johan J Lamotte

Dirk Cyriel Quintens

Jan Gilleir

Kris Viaene

Martin Hueppauff

Prem Lalvani

Christoph Jonda

Surfactants

A silver halide photographic film element has been disclosed, said element comprising on a light-sensitive side of a transparent polyester support, and, in order, an electrically conductive subbing layer, an antihalation undercoat, a light-sensitive emulsion layer or multilayer arrangement, optionally including one or more intermediate, non-light-sensitive layers between emulsion layers in said multilayer arrangement, and a protective overcoat; and on a backing layer side opposite thereto, in order, a subbing layer containing a lubricant and a topcoat layer, characterized in that on the light-sensitive side of said element said subbing layer comprises an antistatic agent providing a substantially unchanged electrical resistivity of the said element before and after processing of said material, and said antihalation undercoat optionally comprises a high temperature boiling solvent; whereas on the backing layer side a friction coefficient of the backing layer versus stainless steel remains unchanged in the range between 0.20 and 0.30 before and after processing of said material, even after removal of the said topcoat layer during processing in an alkaline developer.

Silver halide photographic material comprising a permanent conductive subbing layer and a scratch-resistant backing layer

Electroluminescent arrangements using blend systems

A heat mode element with improved mechanical properties is disclosed comprising a transparent support, a thin metallic recording layer, an adhesive layer, a polymeric resin layer and a top layer comprising a roughening agent in such an amount that the R.sub.a value of said top layer is at least 0.08 .mu.m and the R.sub.z value is at least 0.6 .mu.m. In a preferred embodiment the metallic recording layer is a bismuth layer, and the support has on the other side a backing layer with a low R.sub.a and R.sub.z value. In an alternative embodiment the top layer is absent and the roughening agent is incorporated in the polymeric resin layer itself. Also disclosed is a method for obtaining a heat mode image by the information-wise laser exposure of the disclosed element.

Heat mode recording element based on a thin metallic recording layer

A method is provided for applying a magnetic layer onto a polymeric sheet or web material comprising the steps of (i) simultaneously coextruding a non magnetic 'dummy' layer and a magnetic layer onto said polymeric sheet or web material, said non magnetic 'dummy' layer being closest to the support (ii) drying the coextruded layers characterised in that the sum of the wet coating thickness of said 'dummy' layer (Th.sub.dum) and of the wet coating thickness of said magnetic layer (Th.sub.mag) fulfils the equation 25 .mu.m.ltoreq.Th.sub.dum +Th.sub.mag .ltoreq.100 .mu.m and that the ratio of (Th.sub.mag) to (Th.sub.dum) fulfils the equation 0.01.ltoreq.Th.sub.mag /Th.sub.dum .ltoreq.1.

Method of applying a transparent magnetic layer to a web or sheet

A photographic material comprising a transparent film support having on one side at least one light-sensitive layer and on the other side a transparent magnetic layer and an antistatic layer of a polythiophene arranged above or below said transparent magnetic layer shows transparency and good mechanical and antistatic properties.

Photographic material

Growing community of inventors

Mortsel, Belgium

Hartwig Andries