GB492923A - An improved process for producing a phosphorescent zinc sulphide composition - Google Patents

An improved process for producing a phosphorescent zinc sulphide composition

Info

Publication number
GB492923A
GB492923A GB2490437A GB2490437A GB492923A GB 492923 A GB492923 A GB 492923A GB 2490437 A GB2490437 A GB 2490437A GB 2490437 A GB2490437 A GB 2490437A GB 492923 A GB492923 A GB 492923A
Authority
GB
United Kingdom
Prior art keywords
zinc
composition
luminescent
producing
zinc oxide
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
Application number
GB2490437A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honeywell Riedel de Haen AG
Original Assignee
JD Riedel E de Haen AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by JD Riedel E de Haen AG filed Critical JD Riedel E de Haen AG
Priority to GB2490437A priority Critical patent/GB492923A/en
Publication of GB492923A publication Critical patent/GB492923A/en
Expired legal-status Critical Current

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
    • C09K11/56—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing sulfur
    • C09K11/562—Chalcogenides
    • C09K11/565—Chalcogenides with zinc cadmium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Luminescent Compositions (AREA)

Abstract

492,923. 'Luminescent materials. EVANS, W. E. (Riedel-E. de HaÙn Akt.-Ges., J. D.) Sept. 13, 1937, No. 24904. [Class 98 (i)] A durable yellow-luminescent zinc sulphidezinc oxide composition containing about 2 per cent of zinc oxide is produced by heating to incandescence the usual materials for producing the luminescent sulphide (a) under oxidizing conditions, or (b) after adding thereto a content of zinc oxide or of compounds which produce zinc oxide when heated, e.g. zinc hydroxide or carbonate. The composition phosphoresces well with daylight excitation, but radium or mesothorium may be added as exciter. It may be used with luminous paint for clocks, crucifixes, signs, &c. Examples of the preparation of the composition are given in which the zinc sulphide is activated by copper, and barium chloride or sodium chloride is used as flux.
GB2490437A 1937-09-13 1937-09-13 An improved process for producing a phosphorescent zinc sulphide composition Expired GB492923A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2490437A GB492923A (en) 1937-09-13 1937-09-13 An improved process for producing a phosphorescent zinc sulphide composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2490437A GB492923A (en) 1937-09-13 1937-09-13 An improved process for producing a phosphorescent zinc sulphide composition

Publications (1)

Publication Number Publication Date
GB492923A true GB492923A (en) 1938-09-29

Family

ID=10219096

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2490437A Expired GB492923A (en) 1937-09-13 1937-09-13 An improved process for producing a phosphorescent zinc sulphide composition

Country Status (1)

Country Link
GB (1) GB492923A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2541384A (en) * 1941-07-29 1951-02-13 Hartford Nat Bank & Trust Co Method of making a luminescent zinc sulfide
US3389089A (en) * 1964-01-02 1968-06-18 Gen Electric Blue electroluminescent phosphor and method for its production

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2541384A (en) * 1941-07-29 1951-02-13 Hartford Nat Bank & Trust Co Method of making a luminescent zinc sulfide
US3389089A (en) * 1964-01-02 1968-06-18 Gen Electric Blue electroluminescent phosphor and method for its production

Similar Documents

Publication Publication Date Title
GB415536A (en) Method of producing a luminescent glass
GB406142A (en) Improvements in glass which resists attack by metal vapours
GB492923A (en) An improved process for producing a phosphorescent zinc sulphide composition
US2126233A (en) Luminescent composition and method of making the same
US2136871A (en) Luminescent zinc compounds
GB299797A (en) Improvements in pigments and pigment preparation
GB544444A (en) Improvements in the preparation of fluorescent materials
GB548997A (en) Improvements in and relating to fluorescent materials and processes of making the same
GB416616A (en) Improvements in electric discharge tubes
US2544507A (en) Alkaline earth sulfide phosphorescent pigments
DE719230C (en) Manufacture of silicate luminophores
US1862422A (en) Arc lamp electrode
US1196144A (en) Composition foe rectifying ahd effteusieyhstg linffiotous light
GB500404A (en) Process for the manufacture of phosphorescent lithopone
GB558213A (en) Improvements in and relating to fluorescent materials
GB482071A (en) Improvements in and relating to luminescent materials for use in electric lamps and the like
GB407540A (en) Improvements in or relating to luminescent screens and methods of producing luminophores for use therein
GB440818A (en) Improvements in or relating to fluorescent material
DE707693C (en) Process for the production of a yellow fluorescent substance
GB571690A (en) Improvements in fluorescent substances
GB550799A (en) Improvements in or relating to the production of phosphorescent materials
GB612270A (en) Improvements in fluorescent materials and in screens comprised thereof
GB574321A (en) Improvements in and relating to luminescent materials or phosphors of the alkaline earth metal sulphide type
GB469776A (en) Improvements in or relating to combinations of electric discharge devices and materials excited to luminescence by the electric discharge
GB215347A (en) Improvements in and relating to the manufacture of sintered tungsten and filaments made therefrom