JP2012007080A5 - - Google Patents
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- JP2012007080A5 JP2012007080A5 JP2010144355A JP2010144355A JP2012007080A5 JP 2012007080 A5 JP2012007080 A5 JP 2012007080A5 JP 2010144355 A JP2010144355 A JP 2010144355A JP 2010144355 A JP2010144355 A JP 2010144355A JP 2012007080 A5 JP2012007080 A5 JP 2012007080A5
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Description
本発明者らは前記課題を解決すべく鋭意検討を重ねた結果、以下に示す活性エネルギー線硬化型接着性組成物により前記目標達成できることを見出し、本発明を完成するに至った。
すなわち、本発明は、ポリビニルアルコール系偏光子の両面が、光硬化性接着剤を硬化してなる接着層を介して保護フィルムでそれぞれ被覆されてなる偏光板であって、
前記光硬化性接着剤が、
多官能脂環式エポキシ化合物（Ａ）と単官能グリシジル化合物（Ｂ）とを含むカチオン重合性成分及び光重合開始剤を含有する光硬化性接着剤であって、
前記カチオン重合性成分１００重量％中に、前記多官能脂環式エポキシ化合物（Ａ）を５０重量％以上含み、
前記カチオン重合性成分１００重量部中に、前記単官能グリシジル化合物（Ｂ）由来のエポキシ基を０．０１〜０．２個含み、
実質的に有機溶剤を含有せず、粘度が１０〜１５０ｍＰａ・ｓである、ことを特徴とする光硬化性接着剤に関する。
As a result of intensive studies to solve the above-mentioned problems, the present inventors have found that the above-mentioned target can be achieved by the active energy ray-curable adhesive composition shown below, and have completed the present invention.
That is, the present invention is a polarizing plate in which both sides of a polyvinyl alcohol polarizer are respectively covered with a protective film via an adhesive layer formed by curing a photocurable adhesive,
The photo-curable adhesive is
A photocurable adhesive comprising a cationic polymerizable component comprising a polyfunctional alicyclic epoxy compound (A) and a monofunctional glycidyl compound (B) and a photopolymerization initiator,
The polyfunctional alicyclic epoxy compound (A) is contained in 50% by weight or more in 100% by weight of the cationic polymerizable component,
In 100 parts by weight of the cationic polymerizable component, 0.01 to 0.2 epoxy groups derived from the monofunctional glycidyl compound (B) are included,
It is related with the photocurable adhesive agent characterized by not containing an organic solvent substantially and having a viscosity of 10-150 mPa * s.
また、本発明は、ポリビニルアルコール系偏光子の両面が、光硬化性接着剤を硬化してなる接着層を介して保護フィルムでそれぞれ被覆されてなる偏光板であって、
前記光硬化性接着剤が、
多官能脂環式エポキシ化合物（Ａ）と単官能グリシジル化合物（Ｂ）とを含むカチオン重合性成分及び光重合開始剤を含有する光硬化性接着剤であって、
前記カチオン重合性成分１００重量％中に、前記多官能脂環式エポキシ化合物（Ａ）を５０重量％以上含み、
前記カチオン重合性成分１００重量部中に、前記単官能グリシジル化合物（Ｂ）由来のエポキシ基を０．０１〜０．２個含み、
実質的に有機溶剤を含有せず、粘度が１０〜１５０ｍＰａ・ｓである、ことを特徴とする偏光板に関する。
Moreover, the present invention is a polarizing plate in which both sides of a polyvinyl alcohol polarizer are respectively covered with a protective film via an adhesive layer formed by curing a photocurable adhesive,
The photo-curable adhesive is
A photocurable adhesive comprising a cationic polymerizable component comprising a polyfunctional alicyclic epoxy compound (A) and a monofunctional glycidyl compound (B) and a photopolymerization initiator,
The polyfunctional alicyclic epoxy compound (A) is contained in 50% by weight or more in 100% by weight of the cationic polymerizable component,
In 100 parts by weight of the cationic polymerizable component, 0.01 to 0.2 epoxy groups derived from the monofunctional glycidyl compound (B) are included,
It is related with the polarizing plate characterized by not containing an organic solvent substantially and having a viscosity of 10-150 mPa * s.
また、エポキシ当量が大きくなると粘度が大きくなる傾向にあるので、単官能グリシジル化合物（Ｂ）としては、エポキシ当量が１００〜３００（ｇ／ｅｑ）程度のものが好ましい。
単官能グリシジル化合物（Ｂ）は、カチオン重合性成分１００重量部中に、単官能グリシジル化合物（Ｂ）由来のエポキシ基が０．０１〜０．２個となる範囲で含まれ、エポキシ基が０．０５〜０．２個となる範囲で含まれることが好ましい。
単官能グリシジル化合物（Ｂ）由来のエポキシ基が０．０１個未満、即ち、単官能グリシジル化合物（Ｂ）がほとんど含まれていないと、粘度低下効果がほとんど期待できない。一方、単官能グリシジル化合物（Ｂ）由来のエポキシ基が０．２個よりも多い、即ち、単官能グリシジル化合物（Ｂ）の含有量が多すぎると、硬化性が低下し、巻き癖を満足できない。
Moreover, since the viscosity tends to increase as the epoxy equivalent increases, the monofunctional glycidyl compound (B) preferably has an epoxy equivalent of about 100 to 300 (g / eq).
The monofunctional glycidyl compound (B) is contained in an amount of 0.01 to 0.2 epoxy groups derived from the monofunctional glycidyl compound (B) in 100 parts by weight of the cationic polymerizable component, and the epoxy group is 0. It is preferably included in the range of 0.05 to 0.2.
When the number of epoxy groups derived from the monofunctional glycidyl compound (B) is less than 0.01, that is, when the monofunctional glycidyl compound (B) is hardly contained, the effect of reducing the viscosity is hardly expected. On the other hand, if there are more than 0.2 epoxy groups derived from the monofunctional glycidyl compound (B), that is, if the content of the monofunctional glycidyl compound (B) is too large, curability is lowered and curling habits cannot be satisfied. .
Claims (6)
前記カチオン重合性成分１００重量％中に、前記多官能脂環式エポキシ化合物（Ａ）を５０重量％以上含み、
前記カチオン重合性成分１００重量部中に、前記単官能グリシジル化合物（Ｂ）由来のエポキシ基を０．０１〜０．２個含み、
実質的に有機溶剤を含有せず、粘度が１０〜１５０ｍＰａ・ｓである、ことを特徴とする光硬化性接着剤。 A photocurable adhesive containing a cationic polymerizable component containing a polyfunctional alicyclic epoxy compound (A) and a monofunctional glycidyl epoxy compound (B) and a photopolymerization initiator,
The polyfunctional alicyclic epoxy compound (A) is contained in 50% by weight or more in 100% by weight of the cationic polymerizable component,
In 100 parts by weight of the cationic polymerizable component, 0.01 to 0.2 epoxy groups derived from the monofunctional glycidyl compound (B) are included,
A photocurable adhesive characterized by containing substantially no organic solvent and a viscosity of 10 to 150 mPa · s.
前記光硬化性接着剤が、
多官能脂環式エポキシ化合物（Ａ）と単官能グリシジル化合物（Ｂ）とを含むカチオン重合性成分及び光重合開始剤を含有する光硬化性接着剤であって、
前記カチオン重合性成分１００重量％中に、前記多官能脂環式エポキシ化合物（Ａ）を５０重量％以上含み、
前記カチオン重合性成分１００重量部中に、前記単官能グリシジル化合物（Ｂ）由来のエポキシ基を０．０１〜０．２個含み、
実質的に有機溶剤を含有せず、粘度が１０〜１５０ｍＰａ・ｓである、ことを特徴とする偏光板。 Both surfaces of the polyvinyl alcohol-based polarizer are polarizing plates each covered with a protective film via an adhesive layer formed by curing a photocurable adhesive,
The photo-curable adhesive is
A photocurable adhesive comprising a cationic polymerizable component comprising a polyfunctional alicyclic epoxy compound (A) and a monofunctional glycidyl compound (B) and a photopolymerization initiator,
The polyfunctional alicyclic epoxy compound (A) is contained in 50% by weight or more in 100% by weight of the cationic polymerizable component,
In 100 parts by weight of the cationic polymerizable component, 0.01 to 0.2 epoxy groups derived from the monofunctional glycidyl compound (B) are included,
A polarizing plate characterized by containing substantially no organic solvent and having a viscosity of 10 to 150 mPa · s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010144355A JP5691261B2 (en) | 2010-06-25 | 2010-06-25 | Photocurable adhesive for polarizing plate formation and polarizing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010144355A JP5691261B2 (en) | 2010-06-25 | 2010-06-25 | Photocurable adhesive for polarizing plate formation and polarizing plate |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2012007080A JP2012007080A (en) | 2012-01-12 |
| JP2012007080A5 true JP2012007080A5 (en) | 2013-08-29 |
| JP5691261B2 JP5691261B2 (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2010144355A Active JP5691261B2 (en) | 2010-06-25 | 2010-06-25 | Photocurable adhesive for polarizing plate formation and polarizing plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5691261B2 (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5677883B2 (en) * | 2011-03-29 | 2015-02-25 | 住友化学株式会社 | Photo-curable adhesive, polarizing plate and laminated optical member |
| JP5919574B2 (en) * | 2011-10-24 | 2016-05-18 | パナソニックＩｐマネジメント株式会社 | UV curable resin composition, optical component adhesive, and organic EL device sealing material |
| JP5988649B2 (en) * | 2012-03-29 | 2016-09-07 | 住友化学株式会社 | Manufacturing method of polarizing plate |
| JP2014137477A (en) * | 2013-01-17 | 2014-07-28 | Sumitomo Chemical Co Ltd | Polarizing plate |
| JP2014215472A (en) * | 2013-04-25 | 2014-11-17 | 株式会社ダイセル | Adhesive for manufacturing polarizing plate and polarizing plate |
| WO2015005210A1 (en) * | 2013-07-09 | 2015-01-15 | 株式会社Adeka | Cation-polymerizable composition |
| KR101614211B1 (en) * | 2013-09-30 | 2016-04-20 | 주식회사 엘지화학 | Method for Maunfacturing a Single-faced Thin Polarizing Plate |
| JP2015094823A (en) * | 2013-11-11 | 2015-05-18 | コニカミノルタ株式会社 | Polarizing plate with cellulose ester film |
| WO2016052244A1 (en) | 2014-09-29 | 2016-04-07 | 株式会社Adeka | Photocurable adhesive, and polarizing plate, laminated optical member, and liquid crystal display device using same |
| JP6857839B2 (en) * | 2016-09-13 | 2021-04-14 | パナソニックＩｐマネジメント株式会社 | Portable information terminal |
| JP2018159911A (en) * | 2017-01-27 | 2018-10-11 | 住友化学株式会社 | Polarizing plate and image display device |
| WO2018147247A1 (en) * | 2017-02-13 | 2018-08-16 | 日本合成化学工業株式会社 | Actinic-ray-curable adhesive composition, adhesive composition for polarizer, adhesive for polarizer, and polarizer obtained using same |
| JP6518303B2 (en) * | 2017-09-27 | 2019-05-22 | 日東電工株式会社 | Method of manufacturing polarizing film |
| JP6689349B2 (en) * | 2018-11-12 | 2020-04-28 | 日東電工株式会社 | Polarizing film manufacturing method |
| JP6947870B2 (en) * | 2018-11-12 | 2021-10-13 | 日東電工株式会社 | Method of manufacturing polarizing film |
| JP7224729B2 (en) | 2019-04-25 | 2023-02-20 | 日東電工株式会社 | LAMINATED POLARIZED FILM MANUFACTURING METHOD AND LAMINATED POLARIZED FILM MANUFACTURING APPARATUS |
| JP2020204700A (en) | 2019-06-17 | 2020-12-24 | 日東電工株式会社 | Method for manufacturing laminated polarization film and device for manufacturing laminated polarization film |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5471133A (en) * | 1977-11-18 | 1979-06-07 | Hitachi Ltd | Photo-curable composition for glass bonding and bonding method of glass using the same |
| JPS61133514A (en) * | 1984-11-30 | 1986-06-20 | 三菱電機株式会社 | Manufacture of insulated conductor |
| JPH04178454A (en) * | 1990-11-09 | 1992-06-25 | Mitsubishi Petrochem Co Ltd | Ultraviolet-curing resin composition |
| JPH0641274A (en) * | 1992-07-27 | 1994-02-15 | Mitsubishi Petrochem Co Ltd | Photocrosslinked polyester resin molding |
| JP5448024B2 (en) * | 2007-03-15 | 2014-03-19 | 住友化学株式会社 | Photocurable adhesive, polarizing plate using the photocurable adhesive, method for producing the same, optical member, and liquid crystal display device |
| JP5266935B2 (en) * | 2008-07-29 | 2013-08-21 | Ｄｉｃ株式会社 | Cationic polymerizable adhesive for bonding polarizer and protective film and polarizing plate obtained using the same |
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2010
- 2010-06-25 JP JP2010144355A patent/JP5691261B2/en active Active
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