GB814411A - Improvements in or relating to photographic film bases and films - Google Patents

Improvements in or relating to photographic film bases and films

Info

Publication number
GB814411A
GB814411A GB2387556A GB2387556A GB814411A GB 814411 A GB814411 A GB 814411A GB 2387556 A GB2387556 A GB 2387556A GB 2387556 A GB2387556 A GB 2387556A GB 814411 A GB814411 A GB 814411A
Authority
GB
United Kingdom
Prior art keywords
coat
copolymer
methanol
methyl
subbing
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
GB2387556A
Inventor
Frank Percy Lambert
Kenneth John Challis
Edward William Lee
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.)
Ilford Imaging UK Ltd
Original Assignee
Ilford Ltd
Filing date
Publication date
Application filed by Ilford Ltd filed Critical Ilford Ltd
Publication of GB814411A publication Critical patent/GB814411A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00Photosensitive materials
    • G03C1/76Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/91Photosensitive materials characterised by the base or auxiliary layers characterised by subbing layers or subbing means
    • G03C1/93Macromolecular substances therefor
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00Photosensitive materials
    • G03C1/76Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/795Photosensitive materials characterised by the base or auxiliary layers the base being of macromolecular substances

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Laminated Bodies (AREA)

Abstract

814,411. Photographic films. ILFORD Ltd. June 7, 1957 [Aug. 2, 1956], No. 23875/56. Class 98(2) Photographic film base comprises an oriented styrene/acrylonitrile copolymer. It may be subbed with a first coat comprising polymers of alkyl acrylates or alkyl methacrylates, or copolymers of either of these with themselves or each other or with methacrylic acid, vinyl acetate, 4-vinyl pyridine or acrylonitrile, a second coat of cellulose nitrate and a third coat of gelatin, as described in Specification 787,480 for the subbing of polystyrene film base. A gelatino-silver halide emulsion may then be applied. The first subbing coat may be methyl methacrylate/ methacrylic acid copolymer, methyl methacrylate/4 - vinyl pyridine copolymer, or n - propyl methacrylate/methyl acrylate copolymer, dissolved in a mixture of methanol, benzene, cyclohexane and ethyl lactate. The second coat may comprise cellulose nitrate, methanol and methyl acetate, and the third coat may comprise gelatin, salicylic acid, water, methanol, 74‹O.P. spirit and acetone. Specifications 358,534 [Group VIII], 371,396 and 590,247 [Group IV] also are referred to.
GB2387556A 1956-08-02 Improvements in or relating to photographic film bases and films Expired GB814411A (en)

Publications (1)

Publication Number Publication Date
GB814411A true GB814411A (en) 1959-06-03

Family

ID=1737996

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2387556A Expired GB814411A (en) 1956-08-02 Improvements in or relating to photographic film bases and films

Country Status (1)

Country Link
GB (1) GB814411A (en)

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