GB502919A - Improvements in methods for protecting luminescent materials from deterioration under the combined action of the atmosphere and light - Google Patents
Improvements in methods for protecting luminescent materials from deterioration under the combined action of the atmosphere and lightInfo
- Publication number
- GB502919A GB502919A GB3024937A GB3024937A GB502919A GB 502919 A GB502919 A GB 502919A GB 3024937 A GB3024937 A GB 3024937A GB 3024937 A GB3024937 A GB 3024937A GB 502919 A GB502919 A GB 502919A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solution
- luminescent
- potassium silicate
- atmosphere
- methods
- 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)
- Luminescent Compositions (AREA)
Abstract
502,919. Luminescent screens. GENERAL ELECTRIC CO., Ltd., and JENKINS, H. G. Nov. 4, 1937, No. 30249. [Class 39 (i)] A luminescent screen is manufactured by treating luminescent zinc sulphide and/or zinc-cadmium sulphide with a substantially colourless solution of an alkaline silicate and drying the said solution so that the residue of the dried solution is intimately mixed with at least the superficial layer of the luminescent material. In one process, the finely divided material is dusted on to cardboard or glass which has been well wetted with aqueous potassium silicate solution of specific gravity about 1À3, the water being allowed to evaporate. In the second process, the material is dusted on to a layer of organic varnish and afterwards painted with the aqueous solution of potassium silicate. The powdered material may also be suspended in the potassium silicate solution and applied to the support. Self-supporting blocks may also be made by drying a paste of the powdered material and potassium silicate solution. Specification 446,765, [Group XX], is referred to. Reference has been directed by the Comptroller to Specifications 20038/09, [Class 95], 402,411; 431,404, and 482,233, [both in Group XX].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3024937A GB502919A (en) | 1937-11-04 | 1937-11-04 | Improvements in methods for protecting luminescent materials from deterioration under the combined action of the atmosphere and light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3024937A GB502919A (en) | 1937-11-04 | 1937-11-04 | Improvements in methods for protecting luminescent materials from deterioration under the combined action of the atmosphere and light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB502919A true GB502919A (en) | 1939-03-28 |
Family
ID=10304646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3024937A Expired GB502919A (en) | 1937-11-04 | 1937-11-04 | Improvements in methods for protecting luminescent materials from deterioration under the combined action of the atmosphere and light |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB502919A (en) |
-
1937
- 1937-11-04 GB GB3024937A patent/GB502919A/en not_active Expired
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