WO2009025068A1 - Polyvinyl alcohol film - Google Patents

Polyvinyl alcohol film Download PDF

Info

Publication number
WO2009025068A1
WO2009025068A1 PCT/JP2008/002075 JP2008002075W WO2009025068A1 WO 2009025068 A1 WO2009025068 A1 WO 2009025068A1 JP 2008002075 W JP2008002075 W JP 2008002075W WO 2009025068 A1 WO2009025068 A1 WO 2009025068A1
Authority
WO
WIPO (PCT)
Prior art keywords
film
polyvinyl alcohol
plasticizer
content
alcohol film
Prior art date
Application number
PCT/JP2008/002075
Other languages
French (fr)
Japanese (ja)
Inventor
Tetsushi Hayashi
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 JP2009528946A priority Critical patent/JP5351760B2/en
Priority to CN200880102610.5A priority patent/CN101778888B/en
Priority to TW097131399A priority patent/TWI452050B/en
Publication of WO2009025068A1 publication Critical patent/WO2009025068A1/en

Links

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
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2329/00—Characterised by the use 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; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
    • C08J2329/02—Homopolymers or copolymers of unsaturated alcohols
    • C08J2329/04—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
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid

Abstract

A wide polyvinyl alcohol film which is effective in producing a high-performance polarizing film reduced in optical unevenness caused by dyeing unevenness or stretching unevenness. The polyvinyl alcohol film is one formed from a film-forming raw liquid containing a polyvinyl alcohol polymer and a plasticizer. In a TD area in the film, the maximum difference (Ry) between the plasticizer contents in the film and the average content is 2% or smaller. The film has a plasticizer-content trough/crest curve regarding TD content fluctuations which has an average distance (Sm) of 5 cm or longer.
PCT/JP2008/002075 2007-08-20 2008-08-01 Polyvinyl alcohol film WO2009025068A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2009528946A JP5351760B2 (en) 2007-08-20 2008-08-01 Polyvinyl alcohol film
CN200880102610.5A CN101778888B (en) 2007-08-20 2008-08-01 Polyvinyl alcohol film
TW097131399A TWI452050B (en) 2007-08-20 2008-08-18 Polyvinyl alcohol film

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-213444 2007-08-20
JP2007213444 2007-08-20

Publications (1)

Publication Number Publication Date
WO2009025068A1 true WO2009025068A1 (en) 2009-02-26

Family

ID=40377978

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/002075 WO2009025068A1 (en) 2007-08-20 2008-08-01 Polyvinyl alcohol film

Country Status (5)

Country Link
JP (1) JP5351760B2 (en)
KR (1) KR101544625B1 (en)
CN (2) CN102816339B (en)
TW (1) TWI452050B (en)
WO (1) WO2009025068A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018096725A (en) * 2016-12-08 2018-06-21 株式会社クラレ Method for measuring content of plasticizer
CN112858084A (en) * 2021-01-18 2021-05-28 安徽皖维高新材料股份有限公司 Method for evaluating quality of PVA optical film

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104204045B (en) * 2012-03-30 2017-11-24 株式会社可乐丽 Polyvinyl alcohol film
CN105431751B (en) * 2013-08-09 2018-04-06 株式会社可乐丽 Vinyl alcohol system polymer film
TWI689547B (en) * 2014-10-13 2020-04-01 美商摩諾索公司 Water-soluble polyvinyl alcohol film with plasticizer blend, related methods, and related articles
CN104459864B (en) * 2014-12-12 2016-12-07 云南云天化股份有限公司 Polymer film of polyvinyl alcohol and manufacture method thereof
CN104403245B (en) * 2014-12-12 2016-08-17 云南云天化股份有限公司 A kind of polymer film of polyvinyl alcohol with excellent dyeability and manufacture method thereof
CN107614578A (en) * 2015-06-24 2018-01-19 日本合成化学工业株式会社 The manufacture method and light polarizing film of polyvinyl alcohol film, polyvinyl alcohol film
TWI721171B (en) * 2016-05-27 2021-03-11 日商三菱化學股份有限公司 Polyvinyl alcohol-based film and polarizing film using the polyvinyl alcohol-based film
TWI740963B (en) * 2016-06-13 2021-10-01 日商三菱化學股份有限公司 Polyvinyl alcohol-based film and its manufacturing method, and polarizing film using the polyvinyl alcohol-based film
TWI602700B (en) * 2016-12-29 2017-10-21 住華科技股份有限公司 Polarizing plate and display device containing the same
CN110431458B (en) * 2017-04-26 2021-09-14 三菱化学株式会社 Polyvinyl alcohol film, polarizing plate, and method for producing polyvinyl alcohol film
WO2018235610A1 (en) * 2017-06-21 2018-12-27 株式会社クラレ Rolled master film, method for producing stretched optical film, and stretched optical film
CN111117124B (en) * 2018-10-30 2021-02-12 华南理工大学 Hot water soluble polyvinyl alcohol film and preparation method and application thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05301239A (en) * 1992-04-27 1993-11-16 Kuraray Co Ltd Method and apparatus for producing polyvinyl alcohol polymer film
JPH05305642A (en) * 1992-04-28 1993-11-19 Kuraray Co Ltd Manufacture of polyvinyl alcohol-based polymer film and device thereof
JP2004020630A (en) * 2002-06-12 2004-01-22 Kuraray Co Ltd Polyvinyl alcohol film for optical use and manufacturing method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI247771B (en) * 2000-05-01 2006-01-21 Kuraray Co Process for producing polyvinyl alcohol-based polymer film and polarizing film

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05301239A (en) * 1992-04-27 1993-11-16 Kuraray Co Ltd Method and apparatus for producing polyvinyl alcohol polymer film
JPH05305642A (en) * 1992-04-28 1993-11-19 Kuraray Co Ltd Manufacture of polyvinyl alcohol-based polymer film and device thereof
JP2004020630A (en) * 2002-06-12 2004-01-22 Kuraray Co Ltd Polyvinyl alcohol film for optical use and manufacturing method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018096725A (en) * 2016-12-08 2018-06-21 株式会社クラレ Method for measuring content of plasticizer
CN112858084A (en) * 2021-01-18 2021-05-28 安徽皖维高新材料股份有限公司 Method for evaluating quality of PVA optical film
CN112858084B (en) * 2021-01-18 2022-08-02 安徽皖维高新材料股份有限公司 Method for evaluating quality of PVA optical film

Also Published As

Publication number Publication date
TWI452050B (en) 2014-09-11
CN102816339A (en) 2012-12-12
KR101544625B1 (en) 2015-08-17
JP5351760B2 (en) 2013-11-27
KR20100042283A (en) 2010-04-23
JPWO2009025068A1 (en) 2010-11-18
CN101778888B (en) 2013-08-21
TW200914468A (en) 2009-04-01
CN101778888A (en) 2010-07-14
CN102816339B (en) 2015-09-16

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