JP7840874B2 - ポリビニルアルコールフィルム及びそれを用いた偏光フィルム - Google Patents

ポリビニルアルコールフィルム及びそれを用いた偏光フィルム

Info

Publication number
JP7840874B2
JP7840874B2 JP2022573128A JP2022573128A JP7840874B2 JP 7840874 B2 JP7840874 B2 JP 7840874B2 JP 2022573128 A JP2022573128 A JP 2022573128A JP 2022573128 A JP2022573128 A JP 2022573128A JP 7840874 B2 JP7840874 B2 JP 7840874B2
Authority
JP
Japan
Prior art keywords
polyvinyl alcohol
film
pva
stretching
degree
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.)
Active
Application number
JP2022573128A
Other languages
English (en)
Japanese (ja)
Other versions
JPWO2022145487A1 (https=
Inventor
修 風藤
稔 岡本
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
Publication of JPWO2022145487A1 publication Critical patent/JPWO2022145487A1/ja
Application granted granted Critical
Publication of JP7840874B2 publication Critical patent/JP7840874B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L29/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
    • C08L29/02—Homopolymers or copolymers of unsaturated alcohols
    • C08L29/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Polarising Elements (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
JP2022573128A 2020-12-28 2021-12-28 ポリビニルアルコールフィルム及びそれを用いた偏光フィルム Active JP7840874B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2020219447 2020-12-28
JP2020219447 2020-12-28
PCT/JP2021/049003 WO2022145487A1 (ja) 2020-12-28 2021-12-28 ポリビニルアルコールフィルム及びそれを用いた偏光フィルム

Publications (2)

Publication Number Publication Date
JPWO2022145487A1 JPWO2022145487A1 (https=) 2022-07-07
JP7840874B2 true JP7840874B2 (ja) 2026-04-06

Family

ID=82260836

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2022573128A Active JP7840874B2 (ja) 2020-12-28 2021-12-28 ポリビニルアルコールフィルム及びそれを用いた偏光フィルム

Country Status (2)

Country Link
JP (1) JP7840874B2 (https=)
WO (1) WO2022145487A1 (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118829665A (zh) * 2022-03-09 2024-10-22 株式会社可乐丽 聚乙烯醇膜和聚乙烯醇膜的制造方法
CN116199805B (zh) * 2023-02-23 2025-06-13 安徽皖维先进功能膜材料研究院有限公司 一种高可拉伸性pva光学薄膜用pva原料的制备方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009086241A (ja) 2007-09-28 2009-04-23 Fujifilm Corp 位相差膜、光学フィルム、偏光板、及び液晶表示装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06235818A (ja) * 1993-02-10 1994-08-23 Kuraray Co Ltd 偏光膜
JPH06289223A (ja) * 1993-04-01 1994-10-18 Kuraray Co Ltd 偏光膜の製造法
WO1999054400A1 (en) * 1998-04-20 1999-10-28 Kwang Myung Pharm. Ind. Co., Ltd. Compositions of polyolefin and polyvinyl alcohol, and films, sheets and articles processed therefrom and multilayer products using the same
JP4587307B2 (ja) * 2005-04-28 2010-11-24 日本合成化学工業株式会社 ポリビニルアルコール系フィルム、及び偏光膜、偏光板
JP2007140127A (ja) * 2005-11-18 2007-06-07 Nitto Denko Corp 偏光子、その製造方法、光学フィルムおよび画像表示装置
CN101033320B (zh) * 2007-03-20 2010-10-13 中国乐凯胶片集团公司 一种偏光片用聚乙烯醇膜
JP6472380B2 (ja) * 2013-12-19 2019-02-20 株式会社クラレ フィルム
JP2018135426A (ja) * 2017-02-21 2018-08-30 株式会社クラレ ポリビニルアルコールフィルム及びその製造方法、並びにそれを用いた偏光フィルム

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009086241A (ja) 2007-09-28 2009-04-23 Fujifilm Corp 位相差膜、光学フィルム、偏光板、及び液晶表示装置

Also Published As

Publication number Publication date
JPWO2022145487A1 (https=) 2022-07-07
TW202233740A (zh) 2022-09-01
WO2022145487A1 (ja) 2022-07-07

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