GB500404A - Process for the manufacture of phosphorescent lithopone - Google Patents
Process for the manufacture of phosphorescent lithoponeInfo
- Publication number
- GB500404A GB500404A GB751238A GB751238A GB500404A GB 500404 A GB500404 A GB 500404A GB 751238 A GB751238 A GB 751238A GB 751238 A GB751238 A GB 751238A GB 500404 A GB500404 A GB 500404A
- Authority
- GB
- United Kingdom
- Prior art keywords
- zinc
- lithopone
- sulphide
- sulphate solution
- manufacture
- 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
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/0805—Chalcogenides
- C09K11/0811—Chalcogenides with zinc or cadmium
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/22—Luminous paints
-
- 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
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/0888—Sulfates
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Luminescent Compositions (AREA)
Abstract
500,404. Luminescent materials. HIRSCHEL, W. N. March 10, 1938, No. 7512. [Class 39 (i)] Phosphoresecnt lithopone for luminous and covering paints is made by introducing into a purified zinc sulphate solution a small amount of a copper, manganese, cadmium, bismuth, silver or other salt or a mixture thereof suitable for the activation of zinc sulphide luminophores, or purifying a zinc sulphate solution only so far that a sufficient quantity of said salts remains therein, precipitating the zinc with barium sulphide or a mixture of barium sulphide and sodium sulphide, and calcining the raw lithopone so obtained. A chloride or fluoride of an alkali or alkaline earth metal or of zinc or magnesium to act as a flux may be added to the zinc sulphate solution or may be incorporated into the lithopone at a stage in the manufacture thereof, for example by washing the latter in the filter press with a solution of the salts. Specification 201,549, [Class 1 (iii)], is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB751238A GB500404A (en) | 1938-03-10 | 1938-03-10 | Process for the manufacture of phosphorescent lithopone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB751238A GB500404A (en) | 1938-03-10 | 1938-03-10 | Process for the manufacture of phosphorescent lithopone |
Publications (1)
Publication Number | Publication Date |
---|---|
GB500404A true GB500404A (en) | 1939-02-08 |
Family
ID=9834540
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB751238A Expired GB500404A (en) | 1938-03-10 | 1938-03-10 | Process for the manufacture of phosphorescent lithopone |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB500404A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2537262A (en) * | 1946-06-12 | 1951-01-09 | Sylvania Electric Prod | Luminescent zinc fluoride and method of preparing same |
US4366141A (en) * | 1981-03-27 | 1982-12-28 | Gte Products Corporation | Treatment of coarse particle size zinc sulfide to improve visual and infrared transmission on hot-pressed articles |
-
1938
- 1938-03-10 GB GB751238A patent/GB500404A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2537262A (en) * | 1946-06-12 | 1951-01-09 | Sylvania Electric Prod | Luminescent zinc fluoride and method of preparing same |
US4366141A (en) * | 1981-03-27 | 1982-12-28 | Gte Products Corporation | Treatment of coarse particle size zinc sulfide to improve visual and infrared transmission on hot-pressed articles |
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