JPS5625419A - Preparation of polarizing film of polyvinyl alcohol - Google Patents

Preparation of polarizing film of polyvinyl alcohol

Info

Publication number
JPS5625419A
JPS5625419A JP10168779A JP10168779A JPS5625419A JP S5625419 A JPS5625419 A JP S5625419A JP 10168779 A JP10168779 A JP 10168779A JP 10168779 A JP10168779 A JP 10168779A JP S5625419 A JPS5625419 A JP S5625419A
Authority
JP
Japan
Prior art keywords
film
polyvinyl alcohol
polarizing film
aqueous solution
preparation
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.)
Granted
Application number
JP10168779A
Other languages
Japanese (ja)
Other versions
JPS6016903B2 (en
Inventor
Toshiro Taniguchi
Tsutomu Makimoto
Shinichi Yokota
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.)
Kuraray Co Ltd
Original Assignee
Kuraray 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 Kuraray Co Ltd filed Critical Kuraray Co Ltd
Priority to JP54101687A priority Critical patent/JPS6016903B2/en
Publication of JPS5625419A publication Critical patent/JPS5625419A/en
Publication of JPS6016903B2 publication Critical patent/JPS6016903B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Moulding By Coating Moulds (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

PURPOSE: To prepare a uniform polarizing film in a simple process by a method wherein the aqueous solution of polyvinyl alcohol in which water-soluble metal halide is dissolved is extended in flow and formed into a film and the film is further drawn in one direction under the specific temperature.
CONSTITUTION: Water-soluble metal halide, such as stannic chloride and stannic bromide, is mixed and dissolved in the aqueous solution of polyvinyl alcohol. This aqueous solution is extended in flow on an appropriate support film and formed into a film, and this film is drawn in one direction under the temperature of 90W150°C. In this way, a uniform polarizing film can be prepared in a simple process.
COPYRIGHT: (C)1981,JPO&Japio
JP54101687A 1979-08-08 1979-08-08 Method for manufacturing polyvinyl alcohol polarizing film Expired JPS6016903B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54101687A JPS6016903B2 (en) 1979-08-08 1979-08-08 Method for manufacturing polyvinyl alcohol polarizing film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54101687A JPS6016903B2 (en) 1979-08-08 1979-08-08 Method for manufacturing polyvinyl alcohol polarizing film

Publications (2)

Publication Number Publication Date
JPS5625419A true JPS5625419A (en) 1981-03-11
JPS6016903B2 JPS6016903B2 (en) 1985-04-30

Family

ID=14307241

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54101687A Expired JPS6016903B2 (en) 1979-08-08 1979-08-08 Method for manufacturing polyvinyl alcohol polarizing film

Country Status (1)

Country Link
JP (1) JPS6016903B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6286304A (en) * 1985-10-11 1987-04-20 Sumitomo Chem Co Ltd Production of dye type polarizing film
JPS6289002A (en) * 1985-10-15 1987-04-23 Sumitomo Chem Co Ltd Production of dye type polarizing plate
WO2001068746A1 (en) * 2000-03-15 2001-09-20 Ueda Textile Science Foundation Molding made of polyvinyl alcohol and process for producing the same
JP2019200230A (en) * 2018-05-14 2019-11-21 北川工業株式会社 Manufacturing method for plant-derived black powder and manufacturing method for resin composition

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012247574A (en) * 2011-05-26 2012-12-13 Nitto Denko Corp Adhesion type polarizing plate and image display device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6286304A (en) * 1985-10-11 1987-04-20 Sumitomo Chem Co Ltd Production of dye type polarizing film
JPS6289002A (en) * 1985-10-15 1987-04-23 Sumitomo Chem Co Ltd Production of dye type polarizing plate
WO2001068746A1 (en) * 2000-03-15 2001-09-20 Ueda Textile Science Foundation Molding made of polyvinyl alcohol and process for producing the same
JP2019200230A (en) * 2018-05-14 2019-11-21 北川工業株式会社 Manufacturing method for plant-derived black powder and manufacturing method for resin composition

Also Published As

Publication number Publication date
JPS6016903B2 (en) 1985-04-30

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