GB639086A - Improvements in and relating to magnesium titanate phosphors - Google Patents
Improvements in and relating to magnesium titanate phosphorsInfo
- Publication number
- GB639086A GB639086A GB1167/48A GB116748A GB639086A GB 639086 A GB639086 A GB 639086A GB 1167/48 A GB1167/48 A GB 1167/48A GB 116748 A GB116748 A GB 116748A GB 639086 A GB639086 A GB 639086A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oxide
- gms
- phosphor
- manganese
- alf3
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent materials, e.g. electroluminescent or chemiluminescent
- C09K11/08—Luminescent materials, e.g. electroluminescent or chemiluminescent containing inorganic luminescent materials
- C09K11/67—Luminescent materials, e.g. electroluminescent or chemiluminescent containing inorganic luminescent materials containing refractory metals
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Luminescent Compositions (AREA)
Abstract
639,086. Luminescent materials. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 14, 1948, No. 1167. Convention date, Jan. 17, 1947. [Class 39 (i)] A phosphor is formed by heating in air or in an oxidizing atmosphere at from 1000‹ to 1200‹ C., a dry mixture of magnesium oxide, titanium oxide, a manganese compound capable of furnishing manganous oxide and aluminium fluoride in the following proportions : MgO from 2 to 4 mols. for 1 mol. TiO2, manganese compound to give 0.01 to 0.1 per cent by weight MnO, and AlF3 from 10 to 20 per cent by weight. Either manganese carbonate or manganese fluoride may be used. If the latter substance is used the heating is performed in an oxidizing atmosphere and suitable proportions are MgO, 30 gms ; TiO2, 30 gms. ; AlF3, 9 gms. ; MnF2, 0.08 gms. Beryllium oxide increases the friability of the phosphor and impurities such as zirconium oxide, stannic oxide, antimony, trioxide, zinc oxide, copper and iron do not impair the brightness of the phosphor, but phosphates are harmful.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US639086XA | 1947-01-17 | 1947-01-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB639086A true GB639086A (en) | 1950-06-21 |
Family
ID=22052296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1167/48A Expired GB639086A (en) | 1947-01-17 | 1948-01-14 | Improvements in and relating to magnesium titanate phosphors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB639086A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113646000A (en) * | 2019-04-05 | 2021-11-12 | 株式会社资生堂 | cell activator |
| CN115003269A (en) * | 2020-01-31 | 2022-09-02 | 株式会社资生堂 | Maintenance or promotion of collagen production ability |
| CN115038424A (en) * | 2020-01-31 | 2022-09-09 | 株式会社资生堂 | Photoaging inhibitor |
| CN115052579A (en) * | 2020-01-31 | 2022-09-13 | 株式会社资生堂 | Hyaluronic acid production promoter |
| US12440431B2 (en) | 2019-04-05 | 2025-10-14 | Shiseido Company, Ltd. | Cosmetic comprising ultraviolet wavelength conversion substance |
| US12472131B2 (en) | 2020-01-31 | 2025-11-18 | Shiseido Company, Ltd. | Inflammation-suppressing agent |
| US12551424B2 (en) | 2019-04-05 | 2026-02-17 | Shiseido Company, Ltd. | Oil-in-water type emulsification composition containing UV wavelength conversion substance |
-
1948
- 1948-01-14 GB GB1167/48A patent/GB639086A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113646000A (en) * | 2019-04-05 | 2021-11-12 | 株式会社资生堂 | cell activator |
| US12440431B2 (en) | 2019-04-05 | 2025-10-14 | Shiseido Company, Ltd. | Cosmetic comprising ultraviolet wavelength conversion substance |
| US12551424B2 (en) | 2019-04-05 | 2026-02-17 | Shiseido Company, Ltd. | Oil-in-water type emulsification composition containing UV wavelength conversion substance |
| US12551418B2 (en) | 2019-04-05 | 2026-02-17 | Shiseido Company, Ltd. | Cosmetic containing ultraviolet wavelength converting substance and medicinal agent |
| CN115003269A (en) * | 2020-01-31 | 2022-09-02 | 株式会社资生堂 | Maintenance or promotion of collagen production ability |
| CN115038424A (en) * | 2020-01-31 | 2022-09-09 | 株式会社资生堂 | Photoaging inhibitor |
| CN115052579A (en) * | 2020-01-31 | 2022-09-13 | 株式会社资生堂 | Hyaluronic acid production promoter |
| US12472131B2 (en) | 2020-01-31 | 2025-11-18 | Shiseido Company, Ltd. | Inflammation-suppressing agent |
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