Patent ID: 6423413
Filing Date: 2002-07-23
Classification: C09K,G21K,Y10T

Abstract:
A radiation image storage panel, comprising at least a substrate and a stimulable phosphor layer overlaid upon the substrate, the stimulable phosphor layer being composed of a plurality of stimulable phosphor sublayers overlaid one upon another,wherein at least two stimulable phosphor sublayers, which are adjacent to each other among the plurality of the stimulable phosphor sublayers overlaid one upon another, are overlaid one upon the other such that a temporary substrate contact side surface of one of the two adjacent stimulable phosphor sublayers, which surface was in contact with a temporary substrate utilized when the one adjacent stimulable phosphor sublayer was formed, and a temporary substrate contact side surface of the other adjacent stimulable phosphor sublayer, which surface was in contact with a temporary substrate utilized when the other adjacent stimulable phosphor sublayer was formed, stand facing each other, and wherein a binder, which is contained in a top stimulable phosphor sublayer that is remotest from the substrate among the plurality of the stimulable phosphor sublayers overlaid one upon another on the substrate, contains a polyurethane binder, which has a weight-average molecular weight falling within the range of 200,000 to 500,000, in a proportion falling within the range of 20% by weight to 90% by weight with respect to the total binder contained in the top stimulable phosphor sublayer.