Abstract: In accordance with the present invention a luminescent article is provided which luminescent article comprises a self-supporting or supported layer of phosphor particles dispersed in a binding medium and a protective coating thereover characterised in that the binding medium comprises one or more rubbery and/or elastomeric polymers, in that the ratio by volume of pigment to binding medium is at least 70:30 and at most 92:8 and the packing ratio is less than 67%. By said rubbery and/or elastomeric polymers the phosphor layer has improved elasticity of the screen, high protection against mechanical damage and thus high ease of manipulation and high pigment to binder ratio. Moreover no compression manipulation is necessary to get a thinner coated phosphor layer with reduced voids, and nevertheless a better image quality, i.a. sharpness, is obtained. One or more antioxidants may be present.

Abstract: A method for the production of a radiographic screen comprising the following steps:1) dispersing phosphor particles in an organic liquid in the presence of a charge controlling agent that charges said phosphor particles with a positive or negative net charge,2) arranging said dispersion between a pair of electrodes, wherein one of said electrodes is or carries a conductive support of said radiographic screen,3) applying and maintaining between said electrodes a sufficiently high direct current voltage to deposit charged phosphor particles onto said conductive support, and4) separating said support carrying electrophoretically deposited phosphor particles from said organic liquid,wherein the dispersing of said phosphor particles proceeds by means of an organic surface active compound acting as dispersing agent for said phosphor particles, and said phosphor particles are electrostatically charged through adsorption thereon of ionic components of said organic surface active compound and/or through adsorption of

Abstract: A luminescent article comprising a self-supporting or supported layer of phosphor particles dispersed in a binding medium and a protective coating thereover wherein the binding medium consists essentially of one or more hydrogenated styrene-diene block copolymers, having a saturated rubber di-block or tri-block having a styrene endblock on respectively one or both sides of the di-block or tri-block, as rubbery and/or elastomeric polymers. The ratio by volume of phosphor to binding medium is more than 70/30 and preferably more than 85/15. By using the hydrogenated diene copolymers which are rubbery and/or elastomeric polymers, the phosphor layer has improved elasticity, high protection against mechanical damage and thus high ease of manipulation and high pigment to binder ratio without deterioration after frequent reuse.

Abstract: A radiographic screen comprising a support, a layer comprising a fluorescent phosphor dispersed in a binder and a protective topcoat coated over the phosphor binder layer, wherein the edges are reinforced by a radiation cured coating obtained by curing a radiation curable composition comprising a polyester prepolymer, and a diluent mono-functional monomer.

Abstract: A radiographic screen comprising (1) a metal or hydrophobic resin support, (2) a layer comprising a fluorescent phosphor dispersed in an organic polymeric binder and (3) an optionally present outermost organic polymer coating protecting said phosphor layer against abrasion, characterised in that the edges (side surfaces) of said screen are covered with a polymer material being formed essentially from a moisture-hardened polymer composition.

Abstract: A method for the production of a radiographic screen comprising the following steps:1) dispersing phosphor particles in an organic liquid in the presence of a charge controlling agent that charges said phosphor particles with a positive or negative net charge,2) arranging said dispersion between a pair of electrodes, wherein one of said electrodes is or carries a conductive support of said radiographic screen,3) applying and maintaining between said electrodes a sufficiently high direct current voltage to deposit charged phosphor particles onto said conductive support, and4) separating said support carrying electrophoretically deposited phosphor particles from said organic liquid,wherein the dispersing of said phosphor particles proceeds by means of an organic surface active compound acting as dispersing agent for said phosphor particles, and said phosphor particles are electrostatically charged through adsorption thereon of ionic components of said organic surface active compound and/or through adsorption of