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Agent for imparting fluorescence to ceramic

A technology of imparting agents and fluorescence, applied in the direction of luminescent materials, dental preparations, chemical instruments and methods, etc., can solve problems such as productivity deterioration and danger

Inactive Publication Date: 2014-10-01
GC CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this prior art, since a large amount of acid solution (especially hydrochloric acid, sulfuric acid, nitric acid and their mixed acids frequently used in industry) must be used to dissolve the bismuth compound in the case of producing the solution, it may cause Great danger, and productivity will deteriorate

Method used

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  • Agent for imparting fluorescence to ceramic

Examples

Experimental program
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Effect test

Embodiment Construction

[0022] 52.3 g of glycerin (manufactured by Wako Pure Chemical Industries, Ltd.) was added to 40.7 g of water, mixed and stirred for 30 minutes. This aqueous glycerin solution was mixed with 7 g of bismuth nitrate (manufactured by Wako Pure Chemical Industries, Ltd.) and further stirred for 120 minutes to obtain a fluorescence imparting agent for ceramics (Example 1). Based on the compositions in Table 1, the fluorescence imparting agents for ceramics according to the present invention (Examples 2 to 7) and the fluorescence imparting agents for ceramics (Comparative Examples 1 and 2) produced by a conventional production method using an acid solution were prepared according to the same method As a comparative example. In the present example and the comparative example, the fluorescence imparting agent for ceramics was prepared in the g unit of the numerical value in Table 1, however, in the actual production according to the prior art, for example, in order to manufacture 100 k...

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Abstract

Provided is an agent for imparting fluorescence to a ceramic that does not require the use of an acidic solution during production. The agent for imparting fluorescence to a ceramic is an aqueous solution containing 5 to 90 wt% of glycerin and 0.01 to 10 wt% of one, two, or more selected from bismuth bromide (BiBr3), bismuth bromate (Bi(BrO3)3), bismuth chloride (BiCl3), bismuth chlorate (Bi(ClO3)3), bismuth fluoride (BiF3), bismuth pentafluoride (BiF5), bismuth hydroxide (Bi(OH)3), bismuth iodide (BiI3), bismuth iodate (Bi(IO3)3), bismuth nitrate (Bi(NO3)3), bismuth subnitrate (Bi5O(OH)9(NO3)4), bismuth phosphate (BiPO4), and bismuth sulfate (Bi2(SO4)3).

Description

technical field [0001] The present invention relates to a fluorescence imparting agent for ceramics which imparts fluorescence to ceramics. Background technique [0002] Ceramic materials have been widely used. For example, in the case of manufacturing dental prostheses installed in the oral cavity, a block made of zirconium oxide material containing a small amount of stabilizing materials such as zirconia and yttrium oxide is used, and the block is cut into desired shape. The zirconium oxide mass is formed into a calcined product by applying calcination treatment to the molded body, which is then supplied to processing facilities such as dental laboratories in the state of a sintered material further subjected to calcination treatment. Technicians at the fabrication facility then create a frame from the zirconium oxide blocks based on the model prepared by the dentist, and fabricate the restoration by building porcelain on the frame. [0003] However, zirconium oxide (zi...

Claims

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Application Information

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IPC IPC(8): C09K11/08C01G29/00C09K11/00C09K11/67
CPCC09K11/7701C04B2235/447C04B2235/3298A61K6/0255C04B2235/616C04B35/486C09K11/7428C09K11/77C04B2235/445C04B2235/9646C04B2235/448C09K11/025C04B35/632C04B2235/443C04B2235/444C09K11/74A61C13/082C04B2235/44C04B2235/3804C01G29/00C04B2235/3224A61K6/0094A61C13/0003C04B41/009C04B41/5009C04B2111/807C04B2111/00836A61K6/824A61K6/78C04B35/00C04B35/48C04B41/4535C04B2103/0021
Inventor 真盐刚苅谷周司
Owner GC CORP
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