JP7158798B2 - 粘着剤組成物、これを含む粘着フィルム、粘着フィルムを含むバックプレートフィルムおよび粘着フィルムを含むプラスチック有機発光ディスプレイ - Google Patents
粘着剤組成物、これを含む粘着フィルム、粘着フィルムを含むバックプレートフィルムおよび粘着フィルムを含むプラスチック有機発光ディスプレイ Download PDFInfo
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- JP7158798B2 JP7158798B2 JP2020543771A JP2020543771A JP7158798B2 JP 7158798 B2 JP7158798 B2 JP 7158798B2 JP 2020543771 A JP2020543771 A JP 2020543771A JP 2020543771 A JP2020543771 A JP 2020543771A JP 7158798 B2 JP7158798 B2 JP 7158798B2
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- 229920000642 polymer Polymers 0.000 claims description 56
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- 238000002844 melting Methods 0.000 claims description 43
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- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 description 2
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- 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 2
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- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
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- XVKKIGYVKWTOKG-UHFFFAOYSA-N diphenylphosphoryl(phenyl)methanone Chemical compound C=1C=CC=CC=1P(=O)(C=1C=CC=CC=1)C(=O)C1=CC=CC=C1 XVKKIGYVKWTOKG-UHFFFAOYSA-N 0.000 description 1
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- NVHUTKFDCGWLTP-UHFFFAOYSA-N ethane-1,1,2-triol;prop-2-enoic acid Chemical compound OCC(O)O.OC(=O)C=C NVHUTKFDCGWLTP-UHFFFAOYSA-N 0.000 description 1
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- RMBPEFMHABBEKP-UHFFFAOYSA-N fluorene Chemical compound C1=CC=C2C3=C[CH]C=CC3=CC2=C1 RMBPEFMHABBEKP-UHFFFAOYSA-N 0.000 description 1
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 description 1
- ZNAOFAIBVOMLPV-UHFFFAOYSA-N hexadecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCCCCCOC(=O)C(C)=C ZNAOFAIBVOMLPV-UHFFFAOYSA-N 0.000 description 1
- ACCCMOQWYVYDOT-UHFFFAOYSA-N hexane-1,1-diol Chemical compound CCCCCC(O)O ACCCMOQWYVYDOT-UHFFFAOYSA-N 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- NIHNNTQXNPWCJQ-UHFFFAOYSA-N o-biphenylenemethane Natural products C1=CC=C2CC3=CC=CC=C3C2=C1 NIHNNTQXNPWCJQ-UHFFFAOYSA-N 0.000 description 1
- KCAMXZBMXVIIQN-UHFFFAOYSA-N octan-3-yl 2-methylprop-2-enoate Chemical compound CCCCCC(CC)OC(=O)C(C)=C KCAMXZBMXVIIQN-UHFFFAOYSA-N 0.000 description 1
- AUONHKJOIZSQGR-UHFFFAOYSA-N oxophosphane Chemical compound P=O AUONHKJOIZSQGR-UHFFFAOYSA-N 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229920000636 poly(norbornene) polymer Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical class CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 150000007934 α,β-unsaturated carboxylic acids Chemical class 0.000 description 1
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Description
Xは、NまたはOであり、
R1は、水素またはメチル基であり、
nは、10~30の整数である。
のホスフィンオキシド系化合物;3,3’-カルボニルビニル-7-(ジエチルアミノ)クマリン、3-(2-ベンゾチアゾリル)-7-(ジエチルアミノ)クマリン、3-ベンゾイル-7-(ジエチルアミノ)クマリン、3-ベンゾイル-7-メトキシ-クマリン、または10,10’-カルボニルビス[1,1,7,7-テトラメチル-2,3,6,7-テトラヒドロ-1H,5H,11H-Cl]-ベンゾピラノ[6,7,8-ij]-キノリジン-11-オンなどのクマリン系化合物などを単独使用するか、2以上を混合して使用することができるが、これに限定されない。
23℃で2時間放置後の初期粘着力が100gf/2.54cm(インチ)以下であり、
23℃で24時間放置後の中期粘着力が110gf/2.54cm(インチ)以下であり、
23℃で240時間放置後の後期粘着力が130gf/2.54cm(インチ)以下である粘着フィルムを提供する。
<製造例1>(メタ)アクリレート系樹脂の重合
エチルヘキシルアクリレート(EHA、Ethylhexylacrylate)/メチルメタクリレート(MMA、Methylmethacrylate)/N-ビニルピロリドン(VP、N-Vinylpyrrolidone)/ヒドロキシエチルアクリレート(HEA、hydroxyethylacrylate)を65/20/5/10の重量比で酢酸エチル(EA、Ethyl Acetate)に投入した後に、熱重合開始剤であるアゾビスイソブチロニトリル(AIBN)を投入して、重量平均分子量100万g/molである(メタ)アクリレート系樹脂を製造した。
下記表1の組成および重量比を有する物質をトルエンに投入した後、熱重合開始剤であるAIBN(アゾビスイソブチロニトリル)を投入して、下記表1の溶融温度(Tm)、重量平均分子量を満足する重合体を製造した。
イソシアネート架橋剤(Sam Youngインク社のDR7030HD)を前記製造例1で製造された(メタ)アクリレート系樹脂100重量部に対して1重量部添加した後に、前記製造例2で製造された重合体を下記表2の重量部の比率で添加した後、トルエン溶液で固形分が20%となるように希釈した。
102:粘着シート
103:粘着フィルム
104:保護フィルム
105:バックプレートフィルム
106:プラスチック基板
107:有機発光層
Claims (12)
- (メタ)アクリレート系樹脂;および
溶融温度(melting temperature、Tm)が35℃以上44℃以下である重合体;
を含む粘着剤組成物であって、
前記重合体は、単官能ポリシロキサンおよび1種のモノマーの共重合体であり、
前記溶融温度が35℃以上44℃以下である重合体は、前記溶融温度が35℃以上44℃以下である重合体100重量部基準で、前記単官能ポリシロキサン10重量部以上40重量部以下、および前記モノマー60重量部以上90重量部以下で含まれるものであり、
前記粘着剤組成物は、(メタ)アクリレート系樹脂100重量部基準で、前記溶融温度が35℃以上44℃以下である重合体1~10重量部を含み、
前記溶融温度が35℃以上44℃以下である重合体の重量平均分子量は、3万~20万であり、
前記モノマーは、下記化学式1で表されるものであり、
前記単官能ポリシロキサンは、ポリジメチルシロキサン骨格を有し、片末端に(メタ)アクリロキシ基を有する、粘着剤組成物:
Xは、Oであり、
R1は、水素またはメチル基であり、
nは、16~21の整数である。 - 前記化学式1で表されるモノマーは、ステアリルメタクリレートである、請求項1に記載の粘着剤組成物。
- 溶媒、分散剤、光開始剤、熱開始剤、および粘着付与剤からなる群より選択された1つ以上を追加的に含むものである、請求項1または2に記載の粘着剤組成物。
- 基材フィルムと、
前記基材フィルムの一面に備えられた請求項1~3のいずれか1項に記載の粘着剤組成物またはその硬化物を含む粘着シートと、
を含む粘着フィルム。 - 前記粘着シートの前記基材フィルムが接する面の反対面に離型フィルムをさらに含む、請求項4に記載の粘着フィルム。
- 前記粘着シートの前記基材フィルムと接する面の反対面をステンレス(SUS304基板)に対して接合後、
23℃で2時間放置後の初期粘着力が100gf/2.54cm(インチ)以下であり、
23℃で24時間放置後の中期粘着力が110gf/2.54cm(インチ)以下であり、
23℃で240時間放置後の後期粘着力が130gf/2.54cm(インチ)以下である、請求項4または5に記載の粘着フィルム。 - 前記後期粘着力/前記初期粘着力が0.9以上1.8以下である、請求項6に記載の粘着フィルム。
- 前記粘着シートの厚さは、3μm以上100μm以下である、請求項4~7のいずれか一項に記載の粘着フィルム。
- 前記粘着フィルムの厚さは、50μm以上300μm以下である、請求項4~8のいずれか一項に記載の粘着フィルム。
- 請求項4~9のいずれか一項に記載の粘着フィルムと、
前記粘着フィルムの前記基材フィルム側に備えられた保護フィルムと、
を含むバックプレートフィルム。 - 請求項4~9のいずれか一項に記載の粘着フィルムと、
前記粘着フィルムの前記粘着シート側に備えられたプラスチック基板と、
前記プラスチック基板の前記粘着フィルムと接する面の反対面に備えられた有機発光層と、
を含むプラスチック有機発光ディスプレイ。 - 前記粘着フィルムの前記基材フィルム側に備えられた保護フィルムを含むものである、請求項11に記載のプラスチック有機発光ディスプレイ。
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