Fuji Photo Film Company, Limited

Kikuo Yamazaki

Akira Kitada

Hisashi Yamazaki

Akio Ishizuka

Satoshi Arakawa

Katsuhiro Kohda

Hiroshi Matsumoto

Terumi Matsuda

Yasushi Kojima

Jun Kawagoe

Yuichi Hosoi

Kenji Ohmiya

A radiation image storage panel having a sintered or deposited stimulable phosphor layer is improved by impregnating the sintered or deposited phosphor layer with a thermosetting resin, an ultraviolet-curing resin or an electron beam-curing resin, and curing the impregnated resin.

Radiation image storage panel for the preparation of the same

Disclosed is a radiation image storage panel comprising a support and a compressed phosphor layer provided thereon which contains a phosphor and a binder of which 10 wt. %-100 wt. % content is thermoplastic elastomer. Further disclosed is a radiographic intensifying screen having the same structure as the above radiation image storage panel. The processes for preparation of the radiation image storage panel and the radiographic intensifying screen are also disclosed.

Radiation image storage panel radiographic intensifying screen and

Disclosed in a radiation image storage panel comprising a support and a compressed phosphor layer provided thereon which contains a phosphor and a binder of which 10 wt. %-100 wt. % content is thermoplastic elastomer. Further disclosed is a radiographic intensifying screen having the same structure as the above radiation image storage panel. The processes for preparation of the radiation image storage panel and the radiographic intensifying screen are also disclosed.

Radiation image storage panel, radiographic intensifying screen and

An improvement of a radiographic intensifying screen comprising a support, a phosphor layer which comprises a binder and a phosphor dispersed therein and a protective film, superposed in order, comprises a metal film on one or both surfaces of said protective film.

Radiographic intensifying screen

Radiation image converting materials such as a radiation image storage panel and a radiographic intensifying screen comprising a support and a phosphor layer provided on the support which comprises a binder and a phosphor dispersed therein are provided with an electrically conductive polymer layer.

Radiation image converting material

A radiation image converting material comprising a support, a light-reflecting layer which comprises a binder and a light-reflecting material dispersed therein, and a phosphor layer which comprises a binder and a phosphor dispersed therein, superposed in this order, which is characterized in that said light-reflecting layer contains polymer particles of hollow structure as the light-reflecting material. A radiographic intensifying screen containing a phosphor which gives spontaneous emission and a radiation image storage panel containing a stimulable phosphor which gives stimulated emission are disclosed.

A radiation image storage panel comprising a support and a phosphor layer provided thereon which comprises a binder and a stimulable phosphor dispersed therein, characterized in that said phosphor layer consists essentially of one part on the support side which contains the stimulable phosphor and the other part on the panel surface side which does not substantially contain the stimulable phosphor. Processes for the preparation of said radiation image storage panel are also disclosed.

Radiation image storage panel and process for the preparation of the same

A radiographic intensifying screen comprising a support and a phosphor layer provided thereon which comprises a binder and a phosphor dispersed therein, characterized in that said binder contains a (meth)acrylic copolymer in the amount of 5-100% by weight, having repeating units represented by the formulas (I), (II) and (III): ##STR1## in which each of R.sub.1, R.sub.3 and R.sub.5 is independently a hydrogen atom or an alkyl group; R.sub.2 is a group selected from those consisting of an alkyl group, a cycloalkyl group, an aryl group, a heterocyclic group and an aralkyl group; R.sub.4 is a hydrogen atom or an alkyl group, provided that R.sub.4 is not identical to R.sub.2 ; and x, y and z which represent molar percents are numbers satisfying the conditions of 5.ltoreq.x.ltoreq.99, 1.ltoreq.y+z.ltoreq.95 and x+y+z.gtoreq.90. The (meth)acrylic copolymer is preferably employed in combination with a linear polyester having a hydroxyl value in the range of 20-70.

In a radiation image storage panel comprising a support and a phosphor layer which comprises a binder and a stimulable phosphor dispersed therein and is colored with a colorant, the improvement which comprises said colorant is a pigment capable of absorbing a portion of stimulating rays for the stimulable phosphor and said phosphor layer contains a dispersing agent of at least one fatty acid ester selected from the group consisting of sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters and polyoxyethylene fatty acid esters.

Radiation image storage panel with dispersing agent

A radiation image storage panel comprising a support and a phosphor layer provided thereon which comprises a binder and a stimulable phosphor dispersed therein, characterized in that said binder contains a (meth)acrylic copolymer in the amount of 5-100% by weight, which has repeating units represented by the formulas (I), (II) and (III): ##STR1## in which each of R.sub.1, R.sub.3 and R.sub.5 is independently a hydrogen atom or an alkyl group; R.sub.2 is a group selected from those consisting of an alkyl group, a cycloalkyl group, an aryl group, a heterocyclic group and an aralkyl group; R.sub.4 is a hydrogen atom or an alkyl group and R.sub.2 .noteq.R.sub.4 ; and x, y and z representing molar percents are numbers satisfying the conditions of 5.ltoreq.x.ltoreq.99, 1.ltoreq.y+z.ltoreq.95 and x+y+z.gtoreq.90. The (meth)acrylic copolymer is preferably employed in combination with a linear polyester having a hydroxyl value in the range of 20-70%.

Radiation image storage panel

A radiation image storage panel comprising a support and phosphor layers provided thereon which comprise a binder and a stimulable phosphor dispersed therein, characterized in that said phosphor layers comprise the first phosphor layer on the support side and the second phosphor layer provided on the first phosphor layer, and that the mean particle size of the stimulable phosphor contained in said first phosphor layer is smaller than the mean particle size of the stimulable phosphor contained in said second phosphor layer.

A radiation image storage panel comprising a support, a subbing layer and a phosphor layer which comprises a binder and a stimulable phosphor dispersed therein, superposed in this order, characterized in that said subbing layer contains fine particles having a size of 1-30 .mu.m in an amount of 1-200% by weight of a resin constituting the subbing layer.

A radiation image storage panel comprising a support, a subbing layer and a phosphor layer which comprises a binder and a stimulable phosphor dispersed therein, superposed in this order, characterized in that said subbing layer comprises a synthetic resin crosslinked with a crosslinking agent.

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Kaisei, Japan

Kikuo Yamazaki