Abstract: The present invention is an imaging element which includes a support, at least one image forming layer superposed on the support, a transparent magnetic recording layer, and at least one electrically-conductive layer. The electrically-conductive layer includes crystalline, electronically-conductive acicular metal-containing particles dispersed in a sulfonated polyurethane film-forming binder. The transparent magnetic recording layer is composed of magnetic particles dispersed in a second film-forming binder and is superposed on the electrically-conductive layer.

Abstract: The present invention is an imaging element which includes a support, an image-forming layer superposed on said support, a transparent magnetic recording layer superposed on said support; and an electrically-conductive layer superposed on said support. The transparent magnetic recording layer is composed of magnetic particles dispersed in a first film-forming polymeric binder. The electrically-conductive layer includes electrically-conductive metal-containing colloidal particles, swellable, smectite clay particles, a first polymeric binder which can sufficiently intercalate inside or exfoliate the smectite clay particles and a second film-forming polymeric binder, wherein the electrically-conductive metal-containing particles and the polymer-intercalated or polymer-exfoliated smectite clay particles are dispersed.

Abstract: The present invention is an imaging element which includes a support, an image-forming layer superposed on the support, an electrically-conductive layer superposed on the support, and a transparent magnetic recording layer overlying the electrically-conductive layer. The electrically-conductive layer includes electrically-conductive agents dispersed in a film-forming binder which is a sulfonated polymer and the transparent magnetic recording layer contains ferromagnetic particles dispersed in an aromatic polyester binder having a T.sub.g of greater than 150.degree. C.

Abstract: The present invention is an imaging element which includes a support, an image-forming layer superposed on the support, and an electrically-conductive layer superposed on the support. The electrically-conductive layer includes a layered siliceous material, an electrically conducting polymer that can intercalate inside or exfoliate said layered siliceous material and a film-forming binder.

Abstract: In accordance with one embodiment of the invention, an imaging element is disclosed comprising:(i) a support; (ii) at least one image forming layer; and (iii) an electrically-conductive layer comprising colloidal vanadium oxide intercalated with a water soluble vinyl-containing polymer. The electrically-conductive layer preferably additionally comprises a film-forming binder, which is distinct from the water soluble vinyl-containing polymer. The water soluble vinyl-containing polymer is preferably poly-N-vinylpyrrolidone, polyvinyl alcohol or an interpolymer thereof. Intercalation of vanadium oxide gels with water-soluble polymeric species in accordance with the present invention results in a vanadium oxide gel having improved solution stability and reduced impact of solution aging on conductivity, which improves manufacturing robustness and enables the use of many polymeric binders which could not be effectively used with conventional vanadium oxide gels in conductive layers of imaging elements.

Abstract: In accordance with one embodiment of the invention, an imaging element is disclosed comprising: (i) a support; (ii) at least one image forming layer; (iii) a transparent magnetic recording layer comprising magnetic particles dispersed in a first film-forming binder; and (iv) an electrically-conductive layer comprising colloidal vanadium oxide intercalated with a water soluble vinyl-containing polymer dispersed in a second film-forming binder. The water soluble vinyl-containing polymer is preferably poly-N-vinylpyrrolidone, polyvinyl alcohol or an interpolymer thereof. Intercalation of colloidal vanadium oxide with water soluble vinyl-containing polymers results in improved stability of coating formulations, and an improved colloidal vanadium oxide which is compatible with a wider selection of polymeric binders and facilitates higher binder:vanadium oxide ratios which can improve adhesion of a transparent magnetic layer.

Abstract: The present invention is a multilayer imaging element which includes a support, one or more image-forming layers superposed on the support, and an outermost transparent electrically-conductive, non-charging, overcoat layer superposed on the support. The over coat layer is colloidal, acicular electrically-conductive metal-containing particles, dispersed in a film-forming binder at a volume percentage of acicular conductive metal-containing particles of from 2 to 60. The overcoat layer further includes a first charge control agent which imparts positive charging properties and a second charge control agent which imparts negative charging properties.

Abstract: The present invention is an imaging element which includes a support and at least one image-forming layer superposed on the support. The imaging element includes at least one transparent electrically-conductive layer and a transparent magnetic recording layer overlying the transparent electrically-conductive layer. The electrically conductive layer is composed of both electrically-conductive granular metal-containing colloidal particles having an average particle diameter of less than or equal to 0.05 .mu.m and electrically-conductive acicular metal-containing particles having a cross-sectional diameter of less than or equal to 0.02 .mu.m and an aspect ratio greater than or equal to 5:1 dispersed in a first film-forming binder. The transparent magnetic recording layer is composed of magnetic particles dispersed in a second film-forming binder.

Abstract: The present invention is a multilayer imaging element which includes a support, at least one image-forming layer, and a transparent electrically-conductive layer. The transparent electrically-conductive layer includes electronically-conductive metal antimonate colloidal particles having a particle size of from 0.005 to 0.05 .mu.m and non-conductive metal-containing colloidal particles having a particle size of from 0.002 to 0.05 .mu.m dispersed in a film-forming binder.

Abstract: The present invention is a multilayer imaging element which includes a support, at least one image-forming layer, a transparent magnetic layer and a transparent electrically-conductive layer. The transparent magnetic layer includes magnetic particles dispersed in a film forming binder. The transparent electrically-conductive layer includes electronically-conductive metal antimonate colloidal particles having a particle size of from 0.005 to 0.05 .mu.m and non- conductive metal-containing colloidal particles having a particle size of from 0.002 to 0.05 .mu.m dispersed in a film-forming binder.

Abstract: A method of cutting, slicing or perforating photographic imaging elements using certain cutting tools is disclosed. The cutting tool material includes zirconia and yttria at a molar ratio of yttria to zirconia from about 0.5:99.5 to about 5:95. The cutting tool is essentially a tetragonal crystal phase grain for the interior in a surface of cubic crystal phase grain or monoclinic crystal phase grain. This provides a hard, tough outer surface with a tough core. The cutting tool material can also be a composite of zirconia-alumina with or without surface modification.

Abstract: The present invention describes an imaging element which includes a support, an image-forming layer, a transparent magnetic recording layer, and an electrically-conductive layer. The electrically-conductive layer is a dispersion in a film-forming binder of acicular, crystalline single phase, semi-conductive metal-containing particles having a cross-sectional diameter less than 0.02 .mu.m and an aspect ratio of greater than or equal to 5:1.

Abstract: The present invention describes imaging elements which include a support, an image-forming layer and an electrically-conductive layer. The electrically conductive layer is a dispersion in a film-forming binder of acicular, crystalline single phase, conductive metal-containing particles having a cross-sectional diameter less than 0.02 .mu.m and an aspect ratio of greater than or equal to 5:1.