JP5452225B2 - 電気−光学ディスプレイおよびその中での使用のための材料 - Google Patents
電気−光学ディスプレイおよびその中での使用のための材料 Download PDFInfo
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Description
公開番号第2004/0252360号(特許文献1)
特許番号第6,831,769号(特許文献2)
公開番号第2004/0155857号(特許文献3)
公開番号第2005/0146774号(特許文献4)
特許番号第6,982,178号(特許文献5)
特許番号第6,727,881号(特許文献6)
特許番号第6,727,881号(特許文献7)
特許番号第6,124,851号(特許文献8)
国際出願公開番号第WO97/04398号(特許文献9)
特許番号第6,120,588号(特許文献10)
特許番号第6,657,772号(特許文献11)
特許番号第6,982,178号(特許文献12)および
特許番号第6,312,304号(特許文献13)
本発明は、電気−光学ディスプレス、およびその中での使用のための材料、特にバインダーに関する。本発明は、一部が、バインダーを電気−光学ディスプレイにおける使用に特に適するようにする電気的性質およびその他の性質を備えたバインダーに関する。本発明はまた、電気−光学ディスプレイ以外の用途において有用であり得るポリウレタンを提供する。本発明はまた、電気−光学ディスプレスの生産において有用な特定の電気−光学ディスプレイフィルムに関する。
バインダーを含む固体の電気−光学媒体の層であって、その対向する側に第1の表面および第2の表面を有する、固体の電気−光学媒体の層;
この固体の電気−光学媒体の層の第1の表面を覆う第1の剥離シート;および
この固体の電気−光学媒体の層の第2の表面を覆う第2の剥離シートを備え、
ここで、上記バインダーは、本発明のポリウレタンを含む。
第1の剥離シート;
バインダーを含む固体の電気−光学媒体の層;
接着剤層;および
第2の剥離層を備え、ここで、上記バインダーは、本発明のポリウレタンを含む。
ポリウレタンプレポリマーを、機械的撹拌器、温度計、および窒素入口を装備した500mLのジャケット付きガラスリアクター中、窒素雰囲気下で合成した。4,4’−メチレンビス(シクロヘキシルイソシアネート)(20.99g、Bayer Desmodur W)、ポリカプロラクトンジオール(31.25g、Aldrich、平均Mn約1250)、およびジブチル錫ジラウレート(0.04g、Aldrich)を、リアクター中に装填し、そしてこの混合物を、80℃で2時間加熱した。その後、1−メチル−2−ピロリジノン(10g、Aldrich)中の2,2−ビス(ヒドロキシメチル)プロピオン酸(3.35g、Aldrich)の溶液をリアクター中に添加し、そして反応を80℃でもう1時間進行させ、イソシアネート−末端プレポリマーを得た。リアクター温度を次いで30分間60℃まで低下させ、そしてトリエチルアミン(2.4g、Aldrich)を添加し、カルボン酸を中和した。リアクター温度を次いで30℃までさらに低下させ、そして脱イオン水(105g)を添加し、プレポリマーを水性分散物に変換した。鎖伸長は、分散ステップ直後実施され、小量の脱イオン水に溶解されたヘキサメチレンジアミン(3.5g、Aldrich)を用いて1時間に亘り30℃で実施された。この分散物を60℃で1時間の間加熱し、すべての残存イソシアネートが反応したことを確実にした。
ポリウレタンプレポリマーを、機械的撹拌器、温度計、および窒素入口を装備したジャケット付きガラスリアクター中、窒素雰囲気下で合成した。4,4’−メチレンビス(シクロヘキシルイソシアネート)(18.3g)を、次いで、1−メチル−2−ピロリドン(27g)、ポリカプロラクトン(2000の分子量、49.3g)、および2,2−ビス(ヒドロキシメチル)プロピオン酸(3.4g)をリアクターに添加する。このリアクターを95℃まで4時間加熱し、そして次に70℃まで冷却し、イソシアネート−末端プレポリマーを形成した。トリエチルアミン(2.0g)をゆっくりとプレポリマーに添加し、そして得られる混合物を30分間混合した。水(84g)を、機械的攪拌器および熱電対を装備した第2のリアクターに添加した。プレポリマー(80g)を次いで、第1のリアクターから第2のリアクターに撹拌しながら、ゆっくりと移した。ヘキサメチレンジアミン(70%溶液の2.7g)を第2のリアクターに鎖伸長のために添加し、そして得られる分散物を80℃に1時間加熱し、反応を終了した。
上記の実施例1および2で調製されたポリウレタンを、示差走査熱量計にかけた。コントロールを提供するために、前述の75:25のR 9314/R 9621混合物(図3では単に「混合物」と指定される)がまた、同じ様式で試験された。結果を図3に示す。
実施例2のポリウレタンが前述のR 9314/R 9621混合物のそれより良好な貯蔵安定性を有するか否かを決定するために、試験が実施された。この目的のために、各バインダーの乾燥されたフィルムが、2つのITO−被覆ポリエステルポリ(エチレンテレフタレート)フィルムの間に積層され、このITO層は、もちろん、ポリウレタンと直接接触された。すべてのサンプルが、同じ熱履歴を有していたことを確実にするために、それらは、オーブン中で70℃で数時間加熱され、そして次いで25℃および50%相対湿度で5日間平衡化された。以下に記載される試験における時間ゼロは、この貯蔵期間の終わりでとられた。
そして、本発明の好ましい実施形態によれば、以下が提供される。
(項1)
イソシアネート、および約2000より小さい分子量を有するポリエステルジオール、または約2000より小さい分子量を有する各々のポリエステルジオールセグメントが立体阻害基によって連結される2つのポリエステルジオールセグメントを含むポリエステルジオールから形成されるポリウレタン。
(項2)
約1500より小さい分子量を有するポリカプロラクトンジオールから形成される、上記項1に記載のポリウレタン。
(項3)
前記ポリカプロラクトンジオールが、各々のポリカプロラクトンセグメントが約1500より大きくない分子量を有する、屈曲基によって連結される2つのポリカプロラクトンセグメントを含む、上記項2に記載のポリウレタン。
(項4)
前記立体阻害基が、四級炭素原子を含む、上記項3に記載のポリウレタン。
(項5)
前記立体阻害基が、−C(CH 3 ) 2 −基を含む、上記項4に記載のポリウレタン。
(項6)
イソシアネート、およびポリエステルジオールから形成されるポリウレタンであって、薄いフィルムとして被覆されるとき、約−10℃と約70℃との間で結晶化しないポリウレタン。
(項7)
水性ラテックスの形態である、上記項1または6に記載のポリウレタン。
(項8)
固体の電気−光学材料の層、および該電気−光学材料の層に電場を印加するように配列された少なくとも1つの電極を備える電気−光学ディスプレイであって、該電気−光学材料の層がバインダーを含み、ここで、該バインダーが、上記項1または6に記載のポリウレタンを含む、電気−光学ディスプレイ。
(項9)
上記項8に記載のディスプレイを備える、電子書籍リーダー、ポータブルコンピューター、タブレットコンピューター、セルラー電話、スマートカード、標識、時計、棚ラベルまたはフラッシュドライブ。
(項10)
電気−光学ディスプレイフィルムであって、順に:
光−透過性の電気的−伝導層;バインダーを含み、そして該電気的−伝導層と電気接触している固体の電気−光学媒体の層;
接着剤層;および
剥離シートを備え、ここで、該バインダーが、上記項1または6に記載のポリウレタンを含む、電気−光学ディスプレイフィルム。
(項11)
電気−光学ディスプレイフィルムであって;
バインダーを含む固体の電気−光学媒体の層であって、その対向する側に第1の表面および第2の表面を有する、固体の電気−光学媒体の層;
該電気−光学媒体の層の第1の表面上の第1の接着剤層;
該電気−光学媒体の層から該第1の接着剤層の反対の側に配置される剥離シート;および
該電気−光学媒体の層の第2の表面上に第2の接着剤層を備え、
ここで、該バインダーが、上記項1または6に記載のポリウレタンを含む、電気−光学ディスプレイフィルム。
(項12)
電気−光学ディスプレイを形成することにおける使用のための電気−光学ディスプレイフィルムであって、順に:
光−透過性の保護層および光−透過性の電気的−伝導層のうちの少なくとも1つ;
接着剤層;
バインダーを含む固体の電気−光学媒体の層;および
剥離シートを備え、ここで、該バインダーが、上記項1または6に記載のポリウレタンを含む、電気−光学ディスプレイフィルム。
(項13)
電気−光学ディスプレイを形成することにおける使用のための電気−光学ディスプレイフィルムであって:
バインダーを含む固体の電気−光学媒体の層であって、その対向する側に第1の表面および第2の表面を有する、固体の電気−光学媒体の層;
該固体の電気−光学媒体の層の第1の表面を覆う第1の剥離シート;および
該固体の電気−光学媒体の層の第2の表面を覆う第2の剥離シートを備え、
ここで、該バインダーが、上記項1または6に記載のポリウレタンを含む、電気−光学ディスプレイフィルム。
(項14)
電気−光学ディスプレイを形成することにおける使用のための電気−光学ディスプレイフィルムであって、順に:
第1の剥離シート;
バインダーを含む固体の電気−光学媒体の層;
接着剤層;および
第2の剥離層を備え、
ここで、該バインダーが、上記項1または6に記載のポリウレタンを含む、電気−光学ディスプレイフィルム。
Claims (12)
- イソシアネート、および2000より小さい分子量を有するポリエステルジオール、または2000より小さい分子量を有する各々のポリエステルジオールセグメントが立体阻害基によって連結される2つのポリエステルジオールセグメントを含むポリエステルジオールから形成されるポリウレタンを含む電気−光学ディスプレイに使用するためのバインダーであって、
ここで、該立体阻害基が、四級炭素原子を含み、そしてここで、該電気−光学ディスプレイが電気−光学材料を含み、そして該電気−光学材料が該バインダーを含む、バインダー。 - 1500より小さい分子量を有するポリカプロラクトンジオールから形成される、請求項1に記載のバインダー。
- 前記ポリカプロラクトンジオールが、各々のポリカプロラクトンセグメントが1500より大きくない分子量を有する、屈曲基によって連結される2つのポリカプロラクトンセグメントを含み、
ここで、該屈曲基が−CH 2 −CH2−O−CH2−CH 2 −である、
請求項2に記載のバインダー。 - 前記立体阻害基が、−C(CH3)2−基を含む、請求項1に記載のバインダー。
- 水性ラテックスの形態である、請求項1に記載のバインダー。
- 固体の電気−光学材料の層、および該電気−光学材料の層に電場を印加するように配列された少なくとも1つの電極を備える電気−光学ディスプレイであって、該電気−光学材料の層が請求項1に記載のバインダーを含む、電気−光学ディスプレイ。
- 請求項6に記載のディスプレイを備える、電子書籍リーダー、ポータブルコンピューター、タブレットコンピューター、セルラー電話、スマートカード、標識、時計、棚ラベルまたはフラッシュドライブ。
- 電気−光学ディスプレイフィルムであって、順に:
光−透過性の電気的−伝導層;
請求項1に記載のバインダーを含み、そして該電気的−伝導層と電気接触している固体の電気−光学媒体の層;
接着剤層;および
剥離シートを備える、
電気−光学ディスプレイフィルム。 - 電気−光学ディスプレイフィルムであって;
請求項1に記載のバインダーを含む固体の電気−光学媒体の層であって、その対向する側に第1の表面および第2の表面を有する、固体の電気−光学媒体の層;
該電気−光学媒体の層の第1の表面上の第1の接着剤層;
該電気−光学媒体の層から該第1の接着剤層の反対の側に配置される剥離シート;および
該電気−光学媒体の層の第2の表面上に第2の接着剤層を備える、
電気−光学ディスプレイフィルム。 - 電気−光学ディスプレイを形成することにおける使用のための電気−光学ディスプレイフィルムであって、順に:
光−透過性の保護層および光−透過性の電気的−伝導層のうちの少なくとも1つ;
接着剤層;
請求項1に記載のバインダーを含む固体の電気−光学媒体の層;および
剥離シートを備える、
電気−光学ディスプレイフィルム。 - 電気−光学ディスプレイを形成することにおける使用のための電気−光学ディスプレイフィルムであって:
請求項1に記載のバインダーを含む固体の電気−光学媒体の層であって、その対向する側に第1の表面および第2の表面を有する、固体の電気−光学媒体の層;
該固体の電気−光学媒体の層の第1の表面を覆う第1の剥離シート;および
該固体の電気−光学媒体の層の第2の表面を覆う第2の剥離シートを備える、
電気−光学ディスプレイフィルム。 - 電気−光学ディスプレイを形成することにおける使用のための電気−光学ディスプレイフィルムであって、順に:
第1の剥離シート;
請求項1に記載のバインダーを含む固体の電気−光学媒体の層;
接着剤層;および
第2の剥離層を備える、
電気−光学ディスプレイフィルム。
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2006
- 2006-09-22 US US11/534,336 patent/US7477444B2/en active Active
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2007
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JP2013231972A (ja) | 2013-11-14 |
WO2008039637A3 (en) | 2009-01-08 |
EP2064580A4 (en) | 2010-01-06 |
EP2309322A1 (en) | 2011-04-13 |
EP2064580A2 (en) | 2009-06-03 |
US7477444B2 (en) | 2009-01-13 |
JP2010504403A (ja) | 2010-02-12 |
US20080074730A1 (en) | 2008-03-27 |
WO2008039637A2 (en) | 2008-04-03 |
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