GB452747A - Improvements in fluorescent layers - Google Patents

Improvements in fluorescent layers

Info

Publication number
GB452747A
GB452747A GB33652/35A GB3365235A GB452747A GB 452747 A GB452747 A GB 452747A GB 33652/35 A GB33652/35 A GB 33652/35A GB 3365235 A GB3365235 A GB 3365235A GB 452747 A GB452747 A GB 452747A
Authority
GB
United Kingdom
Prior art keywords
dispersing agent
layer
condensation product
rhodamine
fluorescent
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
GB33652/35A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB452747A publication Critical patent/GB452747A/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
    • C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials

Landscapes

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

Abstract

452,747. Fluorescent screens. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Dec. 4, 1935, No. 33652. Convention date, Feb. 4. [Class 98 (i)] A layer which displays a red fluorescence when irradiated with a light source, such as a mercury or sodium vapour discharge tube, emitting one or more monochromatic wavelengths comprises a red fluorescent colouring material, preferably a rhodamine dye such as Rhodamine B,' and lead chromate, formed into a dispersion. The dispersing agent may be a condensation product of phthalic acid and glycerol, or a polyvinyl acetate condensation product. The layer may be painted on a substratum of wood or metal, and may be coated with the dispersing agent and a transparent linseed oil varnish.
GB33652/35A 1935-02-04 1935-12-04 Improvements in fluorescent layers Expired GB452747A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE800153X 1935-02-04

Publications (1)

Publication Number Publication Date
GB452747A true GB452747A (en) 1936-08-28

Family

ID=6712170

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33652/35A Expired GB452747A (en) 1935-02-04 1935-12-04 Improvements in fluorescent layers

Country Status (4)

Country Link
AT (1) AT149087B (en)
CH (1) CH188326A (en)
FR (1) FR800153A (en)
GB (1) GB452747A (en)

Also Published As

Publication number Publication date
FR800153A (en) 1936-06-29
CH188326A (en) 1936-12-31
AT149087B (en) 1937-03-25

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