GB691140A - Improvements in halophosphate phosphors - Google Patents

Improvements in halophosphate phosphors

Info

Publication number
GB691140A
GB691140A GB1131/51A GB113151A GB691140A GB 691140 A GB691140 A GB 691140A GB 1131/51 A GB1131/51 A GB 1131/51A GB 113151 A GB113151 A GB 113151A GB 691140 A GB691140 A GB 691140A
Authority
GB
United Kingdom
Prior art keywords
per cent
calcium
halophosphate phosphors
carbonate
fired
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
GB1131/51A
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.)
Thorn Electrical Industries Ltd
Original Assignee
Thorn Electrical Industries Ltd
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 Thorn Electrical Industries Ltd filed Critical Thorn Electrical Industries Ltd
Publication of GB691140A publication Critical patent/GB691140A/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
    • C09K11/70—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing phosphorus
    • C09K11/72—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing phosphorus also containing halogen, e.g. halophosphates
    • C09K11/73—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing phosphorus also containing halogen, e.g. halophosphates also containing alkaline earth metals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Paper (AREA)
  • Luminescent Compositions (AREA)

Abstract

691,140. Luminescent materials. THORN ELECTRICAL INDUSTRIES, Ltd. Jan. 15, 1951 [March 18, 1950], No. 1131/51. Class 39(i). A halophosphate phosphor contains aluminium in an amount up to 0.1 per cent by weight, preferably 0.01 per cent. Aluminium hydroxide or acetate is added to a fine powder mixture of ammonium chloride, secondary calcium phosphate, calcium carbonate, manganese carbonate, antimony oxide and calcium fluoride and fired at 1090‹C. Specification 691,127 is referred to.
GB1131/51A 1950-03-18 1951-01-15 Improvements in halophosphate phosphors Expired GB691140A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US691140XA 1950-03-18 1950-03-18

Publications (1)

Publication Number Publication Date
GB691140A true GB691140A (en) 1953-05-06

Family

ID=22086836

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1131/51A Expired GB691140A (en) 1950-03-18 1951-01-15 Improvements in halophosphate phosphors

Country Status (1)

Country Link
GB (1) GB691140A (en)

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