GB954103A - Display panels - Google Patents

Display panels

Info

Publication number
GB954103A
GB954103A GB4419061A GB4419061A GB954103A GB 954103 A GB954103 A GB 954103A GB 4419061 A GB4419061 A GB 4419061A GB 4419061 A GB4419061 A GB 4419061A GB 954103 A GB954103 A GB 954103A
Authority
GB
United Kingdom
Prior art keywords
thermoplastic sheet
laminated
polyvinyl chloride
display panels
opaque
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
GB4419061A
Inventor
Walter Wigg Denny
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB4419061A priority Critical patent/GB954103A/en
Publication of GB954103A publication Critical patent/GB954103A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Laminated Bodies (AREA)

Abstract

954,103. Laminates. IMPERIAL CHEMICAL INDUSTRIES Ltd. Nov. 30, 1962 [Dec. 11, 1961], No. 44190/61. Heading B5N. A display panel comprises a front transparent thermoplastic sheet 1 laminated to a back translucent or opaque thermoplastic sheet 2, the latter having parts of its thickness removed to leave voids 3 corresponding to the shapes and characters required. In a process for making such display panels the front transparent thermoplastic sheet is laminated to the back translucent or opaque thermoplastic sheet using pressures of from 100 to 2500 p.s.i. and temperatures of from 150‹ to 180‹ C. Both the front and back panels are preferably made from the same thermoplastic material, e.g. polythene, polystyrene, polymethylmethacrylate, polyvinyl chloride or copolymers. In a preferred embodiment a thermoplastic is used comprising polyvinyl chloride or copolymer of vinyl chloride with up to 20% of another copolymerizable monomer. Different assemblies are illustrated in Figs. 3, 4 and 5 (not shown).
GB4419061A 1961-12-11 1961-12-11 Display panels Expired GB954103A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4419061A GB954103A (en) 1961-12-11 1961-12-11 Display panels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4419061A GB954103A (en) 1961-12-11 1961-12-11 Display panels

Publications (1)

Publication Number Publication Date
GB954103A true GB954103A (en) 1964-04-02

Family

ID=10432188

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4419061A Expired GB954103A (en) 1961-12-11 1961-12-11 Display panels

Country Status (1)

Country Link
GB (1) GB954103A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2306490A1 (en) * 1975-03-31 1976-10-29 Kulka Thomas LENS FOR TRAFFIC LIGHT
GB2143175A (en) * 1983-07-13 1985-02-06 Ici Plc Clear plastics sheet having opaque protective layer
US4843666A (en) * 1986-09-15 1989-07-04 Flexi-Mat Corporation Pillow mattress

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2306490A1 (en) * 1975-03-31 1976-10-29 Kulka Thomas LENS FOR TRAFFIC LIGHT
GB2143175A (en) * 1983-07-13 1985-02-06 Ici Plc Clear plastics sheet having opaque protective layer
US4843666A (en) * 1986-09-15 1989-07-04 Flexi-Mat Corporation Pillow mattress

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