JPS575001A - Manufacture of polarizing film - Google Patents

Manufacture of polarizing film

Info

Publication number
JPS575001A
JPS575001A JP7993380A JP7993380A JPS575001A JP S575001 A JPS575001 A JP S575001A JP 7993380 A JP7993380 A JP 7993380A JP 7993380 A JP7993380 A JP 7993380A JP S575001 A JPS575001 A JP S575001A
Authority
JP
Japan
Prior art keywords
film
manufacture
polarizing film
obtd
dope
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.)
Pending
Application number
JP7993380A
Other languages
Japanese (ja)
Inventor
Katsuhiko Nose
Rinjiro Ichikawa
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.)
Toyobo Co Ltd
Original Assignee
Toyobo Co 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 Toyobo Co Ltd filed Critical Toyobo Co Ltd
Priority to JP7993380A priority Critical patent/JPS575001A/en
Publication of JPS575001A publication Critical patent/JPS575001A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/08—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of polarising materials

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE:To manufacture a polarizing film without passing through a dipping process by forming a film with a dope obtd. by mixing an iodine-base polarizing element and by stretching the film. CONSTITUTION:A vinyl alcohol-contg. copolymer having 50-90mol% vinyl alcohol content is formed into a film with a dope obtd. by mixing an iodine-base polarizing element. At this time, since the absorptance is increased at about 400- 700Angstrom , a dichromatic dye is added as required. The film is then stretched in a uniaxial direction to manufacture a polarizing film. A cross-linking reaction is conducted during or after the stretching.
JP7993380A 1980-06-12 1980-06-12 Manufacture of polarizing film Pending JPS575001A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7993380A JPS575001A (en) 1980-06-12 1980-06-12 Manufacture of polarizing film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7993380A JPS575001A (en) 1980-06-12 1980-06-12 Manufacture of polarizing film

Publications (1)

Publication Number Publication Date
JPS575001A true JPS575001A (en) 1982-01-11

Family

ID=13704109

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7993380A Pending JPS575001A (en) 1980-06-12 1980-06-12 Manufacture of polarizing film

Country Status (1)

Country Link
JP (1) JPS575001A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59133509A (en) * 1983-01-19 1984-07-31 Nitto Electric Ind Co Ltd Polarizing film and its manufacture
FR2616360A1 (en) * 1987-06-12 1988-12-16 Mitsubishi Gas Chemical Co POLARIZING FILM, PROCESS FOR PRODUCING THE SAME, AND USE THEREOF
JPH01105204A (en) * 1987-07-03 1989-04-21 Unitika Ltd Polarization film and its manufacture

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS547946A (en) * 1977-06-20 1979-01-20 Mitsubishi Rayon Co Polarizing film and method of manufacturing same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS547946A (en) * 1977-06-20 1979-01-20 Mitsubishi Rayon Co Polarizing film and method of manufacturing same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59133509A (en) * 1983-01-19 1984-07-31 Nitto Electric Ind Co Ltd Polarizing film and its manufacture
FR2616360A1 (en) * 1987-06-12 1988-12-16 Mitsubishi Gas Chemical Co POLARIZING FILM, PROCESS FOR PRODUCING THE SAME, AND USE THEREOF
JPH01105204A (en) * 1987-07-03 1989-04-21 Unitika Ltd Polarization film and its manufacture

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