RADIOGRAPHIC ELEMENT

• Main Authors: PRIEBE, ELIZABETH, K, WEAVER, MAX, A, MAIER, LARRY, K, PRUETT, WAYNE, P, DICKERSON, ROBERT, E
• Format: Patent
• Language: English
• Published: 18.03.1993
• Subjects: AUXILIARY PROCESSES IN PHOTOGRAPHY; CHEMISTRY; CINEMATOGRAPHY; COMPOSITIONS BASED THEREON; ELECTROGRAPHY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HOLOGRAPHY; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES; PHOTOGRAPHY; PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHYSICS; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS; THEIR PREPARATION OR CHEMICAL WORKING-UP

A radiographic element comprises a polyester support having double sided silver halide emulsion layers. An ultraviolet light absorbing methine compound is copolymerized with the support and is present in an amount sufficient to reduce the average percent transmission of ultraviolet light over the range of wavelength of from about 350 nm to about 395 nm to less than about 25 percent, and whereby the percent transmittance of said element is at least about 55 percent at a wavelength of about 410 nm for an element thickness of about 0.007 inch. Un élément radiographique comprend un support en polyester ayant des couches d'émission en halogénure d'argent double face. Un composé de méthine absorbant la lumière ultraviolette est copolymérisé avec le support et est présent en une quantité suffisante pour réduire le pourcentage moyen de transmission de lumière ultraviolette dans la plage de longueurs d'ondes allant de 350 nm environ 395 nm environ jusqu'à réduire ce pourcentage à 25 % environ, le pourcentage du facteur de transmission dudit élément étant au moins de 55 % environ à une longueur d'onde d'environ 410 nm pour une épaisseur d'élément d'environ 0,007 pouce.