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
4 Cites 4 Cited by

AI-Extracted 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 use...
View more

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).

Application Domain

Artificial teethDentistry preparations +3

Technology Topic

ChlorateBismuth fluoride +14

Image

  • Agent for imparting fluorescence to ceramic

Examples

  • Experimental program(1)

Example Embodiment

[0021] Example
[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 kg at a time, at least several tens of liters must be transported Concentrated hydrochloric acid (hydrogen chloride concentration: 37% by weight), and 10 kg of concentrated hydrochloric acid (in the case of the composition of Comparative Example 1) needs to be handled when mixing. Therefore, great danger is caused and efficiency is deteriorated.
[0023]
[0024] Fluorescence evaluation was carried out by measuring sintered materials via a microplate reader (trade name SpectraMax M2, manufactured by Molecular Devices Japan) and comparing the obtained fluorescence intensities (relative fluorescence units) by the following Obtained: A calcined product formed of a zirconium oxide treated under the same conditions in a disc shape having a diameter of 15 mm and a thickness of 0.6 mm and subjected to a calcining treatment in the fluorescence imparting agent for ceramics according to each Example and each Comparative Example immersion in water for two minutes and dried, after which it was subjected to a calcination treatment. The results are shown in Table 1.
[0025] Table 1
[0026]
[0027] As shown in Table 1, in the fluorescence imparting agent for ceramics according to the present invention, the same fluorescence intensity as that of conventional fluorescence imparting agents for ceramics can be obtained without using any acid solution when manufacturing the fluorescence imparting agent for ceramics. Fluorescence imparting agent for ceramics.

PUM

no PUM

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products