Photostorage solid drawing medium

Details Photostorage solid drawing medium Photostorage solid drawing medium

2006-04-07

2009-02-03

Walke, Amanda C. (Department: 1795)

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Radiation sensitive composition or product or process of making

C430S139000, C430S494000, C430S905000

Reexamination Certificate

active

07485406

ABSTRACT:
The invention provides a photostorage solid drawing medium comprising a solvent, a resin soluble in the solvent, a photostorage pigment and a gelling agent, wherein the photostorage pigment comprises a long afterglow fluorescent substance comprising an alkaline earth aluminosilicate as a matrix activated with a rare earth element wherein the alkaline earth element is at least one selected from the group consisting of strontium, calcium, magnesium and barium. The solvent used is a polar solvent, particularly a mixture of water and a water-soluble organic solvent, or at least one alcoholic solvent selected from the group consisting of glycols, glycol ethers, glycol ether esters and monovalent alcohols.

REFERENCES:
patent: 5064806 (1991-11-01), Torii et al.
patent: 6921747 (2005-07-01), Hanabusa et al.
patent: 2005/0035331 (2005-02-01), Sun
patent: 02/083814 (2002-10-01), None

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