Title:
PROCESS FOR PRODUCING RED FLUORESCENT SUBSTANCE
Document Type and Number:
WIPO Patent Application WO/2018/003605
Kind Code:
A1
Abstract:
A process for producing a red fluorescent substance having an excellent luminance is provided.
The process is for producing a red fluorescent substance containing strontium, and includes a burning step in which strontium nitride having a hydrogen content of 500 ppm or less is used as a starting material and a starting-material mixture containing the strontium nitride is burned. It is preferable that the production process should comprise a mixing step in which a plurality of starting materials are mixed and the burning step in which the starting-material mixture obtained in the mixing step is burned. It is preferable that the red fluorescent substance containing strontium be a red fluorescent substance comprising a base crystal phase having the same crystal phase as (Sr,Ca)AlSiN3.
Inventors:
KOBAYASHI MANABU (JP)
INABA RYOJI (JP)
NOMIYAMA TOMOHIRO (JP)
TAKEDA YUSUKE (JP)
WATANABE SHINTARO (JP)
INABA RYOJI (JP)
NOMIYAMA TOMOHIRO (JP)
TAKEDA YUSUKE (JP)
WATANABE SHINTARO (JP)
Application Number:
PCT/JP2017/022701
Publication Date:
January 04, 2018
Filing Date:
June 20, 2017
Export Citation:
Assignee:
DENKA COMPANY LTD (JP)
International Classes:
C09K11/08; C01B21/082; C09K11/64
Domestic Patent References:
| WO2015001860A1 | 2015-01-08 | |||
| WO2015002139A1 | 2015-01-08 |
Foreign References:
| JP2014077027A | 2014-05-01 | |||
| JP2014181152A | 2014-09-29 |
Attorney, Agent or Firm:
WATANABE Kaoru (JP)
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