GB693391A - Improvements in and relating to methods of phosphor application - Google Patents
Improvements in and relating to methods of phosphor applicationInfo
- Publication number
- GB693391A GB693391A GB1850/51A GB185051A GB693391A GB 693391 A GB693391 A GB 693391A GB 1850/51 A GB1850/51 A GB 1850/51A GB 185051 A GB185051 A GB 185051A GB 693391 A GB693391 A GB 693391A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phosphor
- binder
- heating
- support
- compound
- 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, e.g. electroluminescent, chemiluminescent materials
- C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
Abstract
693,391. Luminescent materials and processes. THORN ELECTRICAL INDUSTRIES, Ltd. Jan. 24, 1951 [March 1, 1950], No. 1850/51. Class 39(i), The process of coating a support, for example, the envelope of a fluorescent discharge lamp, with a phosphor comprises the steps of adding to a suspending vehicle, including a binder, the phosphor and a compound easily and entirely decomposable by heating to give a non-oxidising gaseous phase (e.g. ammonium oxalate), applying the resulting suspension to the support and heating to decompose the compound and to remove the binder. The oxalate forms non-oxidising atmosphere' of ammonia, carbon dioxide and water, which protects the phosphor from oxidation during the first phase of decomposition of the binder. The application to a white-fluorescing calcium halophosphate phosphor is described.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US693391XA | 1950-03-01 | 1950-03-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB693391A true GB693391A (en) | 1953-07-01 |
Family
ID=22088300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1850/51A Expired GB693391A (en) | 1950-03-01 | 1951-01-24 | Improvements in and relating to methods of phosphor application |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB693391A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4698239A (en) * | 1984-11-13 | 1987-10-06 | Gte Products Corporation | Fluorescent lamps having improved lamp spectral output and maintenance and method of making same |
-
1951
- 1951-01-24 GB GB1850/51A patent/GB693391A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4698239A (en) * | 1984-11-13 | 1987-10-06 | Gte Products Corporation | Fluorescent lamps having improved lamp spectral output and maintenance and method of making same |
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