JP2012518699A - 変性ポリビニルアルコール系樹脂、並びにそれを含む接着剤、偏光板及び表示装置 - Google Patents
変性ポリビニルアルコール系樹脂、並びにそれを含む接着剤、偏光板及び表示装置 Download PDFInfo
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- JP2012518699A JP2012518699A JP2011551013A JP2011551013A JP2012518699A JP 2012518699 A JP2012518699 A JP 2012518699A JP 2011551013 A JP2011551013 A JP 2011551013A JP 2011551013 A JP2011551013 A JP 2011551013A JP 2012518699 A JP2012518699 A JP 2012518699A
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- Prior art keywords
- group
- polyvinyl alcohol
- substituted
- unsubstituted
- adhesive
- Prior art date
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- 229920002451 polyvinyl alcohol Polymers 0.000 title claims abstract description 239
- 239000004372 Polyvinyl alcohol Substances 0.000 title claims abstract description 237
- 229920005989 resin Polymers 0.000 title claims abstract description 230
- 239000011347 resin Substances 0.000 title claims abstract description 230
- 239000000853 adhesive Substances 0.000 title claims abstract description 198
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 192
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 56
- 150000001875 compounds Chemical class 0.000 claims abstract description 28
- 125000003700 epoxy group Chemical group 0.000 claims abstract description 24
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 15
- 239000000126 substance Substances 0.000 claims description 47
- 238000006243 chemical reaction Methods 0.000 claims description 45
- 229920000642 polymer Polymers 0.000 claims description 35
- 238000006116 polymerization reaction Methods 0.000 claims description 35
- 229910052760 oxygen Inorganic materials 0.000 claims description 31
- 125000005842 heteroatom Chemical group 0.000 claims description 30
- 229910052717 sulfur Inorganic materials 0.000 claims description 30
- 239000000203 mixture Substances 0.000 claims description 28
- 229910052757 nitrogen Inorganic materials 0.000 claims description 28
- 230000001681 protective effect Effects 0.000 claims description 25
- 239000003999 initiator Substances 0.000 claims description 21
- 125000002339 acetoacetyl group Chemical group O=C([*])C([H])([H])C(=O)C([H])([H])[H] 0.000 claims description 15
- 125000001072 heteroaryl group Chemical group 0.000 claims description 15
- 125000003118 aryl group Chemical group 0.000 claims description 13
- 125000003341 7 membered heterocyclic group Chemical group 0.000 claims description 10
- 125000001424 substituent group Chemical group 0.000 claims description 10
- 125000002843 carboxylic acid group Chemical group 0.000 claims description 9
- 125000004122 cyclic group Chemical group 0.000 claims description 9
- JOYRKODLDBILNP-UHFFFAOYSA-N urethane group Chemical group NC(=O)OCC JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 9
- 229920002554 vinyl polymer Polymers 0.000 claims description 8
- 125000003837 (C1-C20) alkyl group Chemical group 0.000 claims description 7
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims description 7
- OZAIFHULBGXAKX-VAWYXSNFSA-N AIBN Substances N#CC(C)(C)\N=N\C(C)(C)C#N OZAIFHULBGXAKX-VAWYXSNFSA-N 0.000 claims description 6
- 239000004593 Epoxy Substances 0.000 claims description 6
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 6
- 229910052794 bromium Inorganic materials 0.000 claims description 5
- 229910052801 chlorine Inorganic materials 0.000 claims description 5
- 229910052731 fluorine Inorganic materials 0.000 claims description 5
- 125000005843 halogen group Chemical group 0.000 claims description 5
- 229910052740 iodine Inorganic materials 0.000 claims description 5
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 claims description 5
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- 239000004696 Poly ether ether ketone Substances 0.000 claims description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 2
- 229920000058 polyacrylate Polymers 0.000 claims description 2
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- 229920000728 polyester Polymers 0.000 claims description 2
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- 150000001491 aromatic compounds Chemical class 0.000 claims 2
- 125000004429 atom Chemical group 0.000 claims 2
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 claims 1
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- JTHNLKXLWOXOQK-UHFFFAOYSA-N n-propyl vinyl ketone Natural products CCCC(=O)C=C JTHNLKXLWOXOQK-UHFFFAOYSA-N 0.000 claims 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 172
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 description 40
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- 230000000052 comparative effect Effects 0.000 description 19
- -1 acryl group Chemical group 0.000 description 18
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 15
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 14
- 229920002284 Cellulose triacetate Polymers 0.000 description 14
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 14
- 239000003431 cross linking reagent Substances 0.000 description 14
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- 238000005481 NMR spectroscopy Methods 0.000 description 10
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- 125000000524 functional group Chemical group 0.000 description 8
- 125000003647 acryloyl group Chemical group O=C([*])C([H])=C([H])[H] 0.000 description 7
- XAVMMNWPOYCFPU-UHFFFAOYSA-N 2-[bis(2-hydroxyethyl)amino]ethanolate;propan-2-olate;titanium(4+) Chemical compound [Ti+4].CC(C)[O-].CC(C)[O-].OCCN(CCO)CC[O-].OCCN(CCO)CC[O-] XAVMMNWPOYCFPU-UHFFFAOYSA-N 0.000 description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
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- 238000011156 evaluation Methods 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
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- 125000000008 (C1-C10) alkyl group Chemical group 0.000 description 4
- 125000006732 (C1-C15) alkyl group Chemical group 0.000 description 4
- 125000006527 (C1-C5) alkyl group Chemical group 0.000 description 4
- GJKGAPPUXSSCFI-UHFFFAOYSA-N 2-Hydroxy-4'-(2-hydroxyethoxy)-2-methylpropiophenone Chemical compound CC(C)(O)C(=O)C1=CC=C(OCCO)C=C1 GJKGAPPUXSSCFI-UHFFFAOYSA-N 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
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- SFLRURCEBYIKSS-UHFFFAOYSA-N n-butyl-2-[[1-(butylamino)-2-methyl-1-oxopropan-2-yl]diazenyl]-2-methylpropanamide Chemical compound CCCCNC(=O)C(C)(C)N=NC(C)(C)C(=O)NCCCC SFLRURCEBYIKSS-UHFFFAOYSA-N 0.000 description 4
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- 229910052719 titanium Inorganic materials 0.000 description 4
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 239000004721 Polyphenylene oxide Substances 0.000 description 3
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 3
- LBSPZZSGTIBOFG-UHFFFAOYSA-N bis[2-(4,5-dihydro-1h-imidazol-2-yl)propan-2-yl]diazene;dihydrochloride Chemical compound Cl.Cl.N=1CCNC=1C(C)(C)N=NC(C)(C)C1=NCCN1 LBSPZZSGTIBOFG-UHFFFAOYSA-N 0.000 description 3
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- 238000007142 ring opening reaction Methods 0.000 description 3
- KWVGIHKZDCUPEU-UHFFFAOYSA-N 2,2-dimethoxy-2-phenylacetophenone Chemical compound C=1C=CC=CC=1C(OC)(OC)C(=O)C1=CC=CC=C1 KWVGIHKZDCUPEU-UHFFFAOYSA-N 0.000 description 2
- IVIDDMGBRCPGLJ-UHFFFAOYSA-N 2,3-bis(oxiran-2-ylmethoxy)propan-1-ol Chemical compound C1OC1COC(CO)COCC1CO1 IVIDDMGBRCPGLJ-UHFFFAOYSA-N 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- XMLYCEVDHLAQEL-UHFFFAOYSA-N 2-hydroxy-2-methyl-1-phenylpropan-1-one Chemical compound CC(C)(O)C(=O)C1=CC=CC=C1 XMLYCEVDHLAQEL-UHFFFAOYSA-N 0.000 description 2
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- DPTGFYXXFXSRIR-UHFFFAOYSA-N 7-oxabicyclo[4.1.0]heptan-4-ylmethyl prop-2-enoate Chemical compound C1C(COC(=O)C=C)CCC2OC21 DPTGFYXXFXSRIR-UHFFFAOYSA-N 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 2
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- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- QLNJFJADRCOGBJ-UHFFFAOYSA-N propionamide Chemical compound CCC(N)=O QLNJFJADRCOGBJ-UHFFFAOYSA-N 0.000 description 1
- 229940080818 propionamide Drugs 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000012916 structural analysis Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000009210 therapy by ultrasound Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
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- C—CHEMISTRY; METALLURGY
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- C08F16/00—Homopolymers and 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
- C08F16/02—Homopolymers and 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 by an alcohol radical
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- 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
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- G02B1/14—Protective coatings, e.g. hard coatings
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- G—PHYSICS
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- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
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- 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
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- 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
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- G02B5/305—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 comprising multiple thin layers, e.g. multilayer stacks including organic materials, e.g. polymeric layers
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- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
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Abstract
【選択図】なし
Description
水系接着剤として、アセトアセチル基が3mol%導入されたポリビニルアルコール樹脂[ポリビニルアルコール樹脂の平均重合度1100,鹸化度99%,日本合成社製,商品名Z210]を用いた。前記アセトアセチル基導入されたZ210ポリビニルアルコール樹脂を4重量%となるように純水に溶解して製造した水系接着剤を用いたことを除いては、実施例1と同様の方法で偏光板を製造した。偏光板の接着力、水に対する溶解度、及び耐水性を評価して下記表1に示す。
接着剤としてチタンアミン錯体(製品名TYZOR TE,会社名Dupont)を、比較例1のアセトアセチル基が3mol%導入されたZ210ポリビニルアルコール樹脂100重量部当たり20重量部添加したことを使用したことを除いては、比較例1と同様の方法で偏光板を製造した。偏光板の接着力、水に対する溶解度、及び耐水性を評価して下記表1に示す。
接着剤としてジルコニウムアミン化合物(製品名AC−7,会社名Daichi Kigenso Kanaku Kogyo)を、比較例1のアセトアセチル基が3mol%導入されたZ210ポリビニルアルコール樹脂100重量部当たり20重量部添加したことを使用したことを除いては、比較例1と同様の方法で偏光板を製造した。偏光板の接着力及び耐水性を評価して下記表1に示す。
GMAをポリビニルアルコール系樹脂[平均重合度600,鹸化度95〜97%,日本合成社製,商品名Z100]100重量部当たり12重量部としたことを除いては、実施例5と同様の方法で偏光板を製造した。偏光板の接着力及び耐水性を評価して下記表1に示す。
EMAをポリビニルアルコール系樹脂[平均重合度1100,鹸化度99%,日本合成社製,商品名Z210]100重量部当たり11重量 重量部としたことを除いては、実施例15と同様の方法で偏光板を製造した。偏光板の接着力、水に対する溶解度、及び耐水性を評価して下記表1に示す。
純水にポリビニルアルコール樹脂[平均重合度1100,鹸化度99%,日本合成社製,商品名Z210]を80℃で1時間溶解した。その後、常温で前記溶解したポリビニルアルコール樹脂にアクリロイルクロライド(acryloyl chloride)を前記ポリビニルアルコール樹脂100重量部当たり30重量部添加し、35〜40℃で攪拌してアクリロイルをポリビニルアルコール樹脂に化学的に結合させた。得られた反応生成物を分離乾燥してアクリロイル基導入されたポリビニルアルコール樹脂を得た。その後、得られたアクリロイル基導入されたポリビニルアルコール樹脂をFT−IRで測定し、アクリロイル基が導入されているか否かを確認した。また、導入されたアクリロイル基の含有量をNMRで計算した。
2−ヒドロキシエチルアクリレート:アクリル酸が1:1の重量比を有する配合物100重量部に重合開始剤であるベンゾイルパーオキシド0.1部を添加し、トルエン中で重合してアクリル系共重合溶液を得た。
3−ヒドロキシメチル−3−エチルオキセタン348重量部とプロピレンオキシド348重量部を混合し、ジエチルエーテル1リットルに溶解して−14℃のアイスバスで冷却した。その後、重合開始剤として60重量%HPF6水溶液5.5重量部を前記混合溶液に10分間滴加した。その後、前記混合溶液を常温で一晩反応させ、翌日30重量%のNaOCH3メタノール溶液(NaOCH3 30g/MeOH 70gの割合で溶解した溶液)9重量部を投入して前記重合開始剤を非活性化した。重合開始剤が非活性化されたら濾過して反応生成物を除去し、75℃に加熱して重合された反応生成物中のジエチルエーテルを除去してポリエーテルポリオールを得た。前記ポリエーテルポリオールは重量平均分子量が3500であった。
ポリビニルアルコール[平均重合度600,鹸化度95〜97%,日本合成社製,商品名Z100]と2−ヒドロキシエチルアクリレートを85/15の重量比で共重合した共重合樹脂(鹸化度99.5%,平均重合度1700)5重量部に水95重量部を混合して加熱溶解し、これに架橋剤としてジルコニウムアミン化合物(製品名AC−7,会社名Daichi Kigenso Kanaku Kogyo)3.0重量部を添加し、2時間常温で十分に攪拌して接着剤(樹脂固形分含有量約4.8重量%)を得た。前記方法で得られた接着剤溶液を用いて実施例1と同様の方法で偏光板を製造した。偏光板の接着力、水に対する溶解度、及び耐水性を評価して下記表1に示す。
純水にポリビニルアルコール樹脂[平均重合度1100,鹸化度99%,日本合成社製,商品名Z210]を80℃で1時間溶解した。その後、常温で前記溶解したポリビニルアルコール樹脂100重量部当たりGMA(glycidylmethacrylate)15重量部を添加してGMAとポリビニルアルコール樹脂の混合物を準備した。その後、純水にポリビニルアルコール樹脂の含有量が約4重量%となるように溶解し、攪拌して接着剤溶液を得た。
上記実施例及び比較例の接着剤及び偏光板の物性を次のような方法で測定した。
Varian社(米国)のExcalibur 3100を用いて吸光度を測定し、変性(改質)PVA樹脂の変性の有無を確認した。
Varian社(米国)のUnity Inova 500を用いて製造された変性(改質)ポリビニルアルコール樹脂の構造分析及び改質含有量を計算した。
TA(Texture Analyzer,Stable Micro Systems社製,U.K)を用いて偏光板における偏光素子と保護フィルムの接着力を測定した。
◎:5N/cm≦接着力(接着力が5N/cm以上)
○:4N/cm≦接着力<5N/cm(接着力が4N/cm以上かつ5N/cm未満)
△:3N/cm≦接着力<4N/cm(接着力が3N/cm以上かつ4N/cm未満)
×:接着力<3N/cm(接着力が3N/cm未満)
上記実施例及び比較例の接着剤溶液組成をそれぞれ常温で1時間攪拌した後、水に対するPVA樹脂の溶解度を肉眼で評価した。溶解度は肉眼で沈殿物生成の有無及び濁度を観察して評価した。沈殿物が生じず、透明なものが、水に対する溶解度が高いものである。
○(良好)−沈殿物なし。透明。
△(やや不良)−沈殿物なし。濁り。
×(不良)−沈殿物あり。濁り。
偏光板のトリアセチルセルロース(TAC)フィルムの一面に偏光板アクリレート粘着剤を塗布した。粘着剤が塗布された偏光板を50mm×80mmのサイズに切断した。ここで、偏光フィルムの延伸方向を長軸とし、それに直交する方向を短軸とした。塗布された粘着剤を媒介として偏光板をガラスに積層して試験片を製造し、耐水性を評価した。耐水性は温度60℃及び相対湿度100%(恒温槽を利用)で前記試験片を8時間放置し、剥離の程度(保護フィルムと偏光素子の分離)を測定して評価した。剥離の程度は偏光板の端部から剥離した量を測定し、そのサンプルサイズに対する面積比で確認した。剥離の程度が小さいほど耐水性に優れたものである。実施例及び比較例の偏光板の物性評価の結果を下記表1に示す。
◎(非常に良好)−剥離面積<10%(剥離面積が10%未満)
○(良好)−10%≦剥離面積<50%(剥離面積が10%以上かつ50%未満)
△(やや不良)−50%≦剥離面積<100%(剥離面積が50%以上かつ100%未満)
×(不良)−100%剥離
Claims (16)
- アクリル基が導入されてアクリル基の導入時に形成されたヒドロキシル基を含む変性ポリビニルアルコール系樹脂。
- 前記アクリル基は0.1〜50mol%導入されることを特徴とする請求項1に記載の変性ポリビニルアルコール系樹脂。
- 前記変性ポリビニルアルコール系樹脂は、ポリビニルアルコール系樹脂とエポキシ基及びアクリル基を有する化合物との反応で得られることを特徴とする請求項1に記載の変性ポリビニルアルコール系樹脂。
- 前記変性ポリビニルアルコール系樹脂は、下記化学式Aの繰り返し単位と下記化学式B1、B2及びB3の少なくとも1つの繰り返し単位とを含むことを特徴とする請求項1に記載の変性ポリビニルアルコール系樹脂。
- 前記ポリビニルアルコール系樹脂は、平均重合度が500〜1800であることを特徴とする請求項3に記載の変性ポリビニルアルコール系樹脂。
- 前記エポキシ基及びアクリル基を有する化合物は下記化学式1又は2で表されることを特徴とする請求項3に記載の変性ポリビニルアルコール系樹脂。
- 請求項1〜7のいずれかの変性ポリビニルアルコール系樹脂を含む偏光板用接着剤。
- ポリビニルアルコール系樹脂100重量部と、エポキシ基及びアクリル基を有する化合物0.001〜10重量部とを含む偏光板用接着剤。
- 前記ポリビニルアルコール系樹脂は、平均重合度が500〜1800であることを特徴とする請求項9に記載の偏光板用接着剤。
- 前記エポキシ基及びアクリル基を有する化合物は、下記化学式1又は2で表されることを特徴とする請求項9に記載の偏光板用接着剤。
- 前記偏光板用接着剤は、AIBN系及びパーサルフェート系水溶性開始剤からなる群の開始剤をさらに含むことを特徴とする請求項8又は9に記載の偏光板用接着剤。
- 前記開始剤は最大10重量%添加されることを特徴とする請求項12に記載の偏光板用接着剤。
- 請求項8又は9の偏光板用接着剤で偏光素子と保護フィルムが貼り合わせられた偏光板。
- 前記保護フィルムは、ポリエステル系重合体、スチレン系重合体、セルロース系重合体、ポリエーテルスルホン系重合体、ポリカーボネート系重合体、アクリル系重合体、ポリオレフィン系重合体、ポリアミド系重合体、ポリイミド系重合体、スルホン系重合体、ポリエーテルエーテルケトン系重合体、ポリフェニレンスルファイド系重合体、ビニルアルコール系重合体、塩化ビニリデン系重合体、ビニルブチラール系重合体、アリレート系重合体、ポリオキシメチレン系重合体、エポキシ系重合体、及びそれら重合体の混合物からなる群から選択された重合体を含むものであることを特徴とする請求項14に記載の偏光板。
- 請求項14の偏光板を含む表示装置。
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WO2019004431A1 (ja) * | 2017-06-29 | 2019-01-03 | 株式会社Adeka | 接着剤組成物 |
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CN102325852B (zh) | 2014-03-26 |
JP5464764B2 (ja) | 2014-04-09 |
CN102325852A (zh) | 2012-01-18 |
KR101170108B1 (ko) | 2012-08-01 |
US20160130483A1 (en) | 2016-05-12 |
US10030181B2 (en) | 2018-07-24 |
KR20110126569A (ko) | 2011-11-23 |
KR101197164B1 (ko) | 2012-11-02 |
WO2010095905A3 (ko) | 2010-11-18 |
KR20100095402A (ko) | 2010-08-30 |
US20110300387A1 (en) | 2011-12-08 |
WO2010095905A2 (ko) | 2010-08-26 |
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