Intraoral dental radiographic film packet with injection molded comfort-enhancing edge bead

An intraoral x-ray film packet is taught which has an outer envelope wherein one of the two opposing outer sheets is more rigid than the other such that it has a tensile modulus of at least 700 Kg/cm2. This is preferably accomplished by making both sheets from a thermoplastic material such as PVC an...

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Bibliographische Detailangaben
Hauptverfasser:	BACCHETTA, RICHARD W, HE, FUGUI, RICHTER, EDWARD B, MERZ, GARY E, ALLEN, DAVID C, RESCH, DOUGLAS T, EARNHART, EDGAR G, KONTE, BRUCE W, SCHWALLIE, SCOTT H, MCGOVERN, MICHAEL R
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM AUXILIARY PROCESSES IN PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES PHOTOGRAPHY PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES PHYSICS
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Beschreibung
Zusammenfassung:	An intraoral x-ray film packet is taught which has an outer envelope wherein one of the two opposing outer sheets is more rigid than the other such that it has a tensile modulus of at least 700 Kg/cm2. This is preferably accomplished by making both sheets from a thermoplastic material such as PVC and reducing the amount of plasticizer in the more rigid of the two sheets to less than 30%. A continuous perimetric seal is formed affixing the two outer sheets together and forming a perimetric laminated edge which is substantially coplanar with the more rigid of the two sheets. A film chip resides between the two outer sheets. A comfort-enhancing perimetric edge bead is injection molded directly onto the perimetric laminated edge.