JP6816262B2 - 硬化性組成物 - Google Patents
硬化性組成物 Download PDFInfo
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- JP6816262B2 JP6816262B2 JP2019510359A JP2019510359A JP6816262B2 JP 6816262 B2 JP6816262 B2 JP 6816262B2 JP 2019510359 A JP2019510359 A JP 2019510359A JP 2019510359 A JP2019510359 A JP 2019510359A JP 6816262 B2 JP6816262 B2 JP 6816262B2
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C—CHEMISTRY; METALLURGY
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Description
実施例または比較例で製造された硬化性組成物は、一般的なITOフィルム(ポリエチレンテレフタラート;PET)フィルムの一面にITO(酸化インジウムスズ)が蒸着されたフィルム)(図1の基板200)のITO層上に約10μm程度の厚さでコーティングし、メタルハライドランプで約3J/cm2の紫外線を照射して1次硬化した後、一般的なラビング配向に適用されるラビング布でラビング処理する。その後、レンズ構造物が形成された基板(図1のレンズ層300が形成された基板100)を、前記1次硬化後にラビング配向処理された硬化層に付着し、それら間の空間(図1の500)に液晶を注入した後、偏光顕微鏡(ニコン社、ECLIPSE E600WPOL)を使用して液晶の配向が良好に行われたか否かを確認する。液晶の配向が行われた場合にはPで評価し、行われていないか、または、配向欠陥が観察される場合にはNGで評価した。
ラビング配向性の評価時に適用されたサンプル(1次硬化した硬化性組成物の層上にレンズ構造物が付着している構造)を約100℃で約3時間維持し、2次硬化後にラビング配向性の評価時と同一に、偏光顕微鏡(ニコン社、ECLIPSE E600WPOL)を使用して液晶の配向が良好に行われたか否かを確認する。液晶の配向が行われた場合にはPで評価し、行われていないか、または、配向欠陥が観察される場合には、NGで評価した。
液晶配向性の評価時に適用された熱硬化後のサンプルを曲げてから伸ばした後に、レンズおよびITO層との硬化性組成物の層の付着程度を観察して、異常がない場合にはPで評価し、付着が脱離したり、液晶配向の不良が観察される場合はNGで評価した。
実施例または比較例で製造した硬化性組成物をITOフィルムのITO層にコーティングし、ラビング工程性および液晶配向性の評価時に適用されたものと同一に1次および2次硬化させた後、ASTM D3359規格によりクロスカット試験を行い、硬化層が全く脱離しない場合をPで評価し、一部あるいは全部が脱離した場合にはNGで評価した。
固状エポキシ化合物として、DIC社のEpiclon 1055(ビスフェノールA型エポキシ化合物、エポキシ当量:450〜500g/eq、軟化点:64℃〜74℃)、液状エポキシ化合物として、国都化学社のYD−128(液状ビスフェノールA型エポキシ化合物、エポキシ当量:184〜190g/eq)、ビスフェノール型(メタ)アクリレートとして、サートマー社のCN110NS(ビスフェノールA型エポキシアクリレート、液状)、フェノキシ樹脂として、YP−50(ビスフェノールA型フェノキシ樹脂、分子量:60,000〜80,000g/mol)、ラジカル開始剤として、BASF社のIrgacure 184、およびエポキシ化合物の硬化剤として、四国化成社のC11ZAを、約15:10:15:58:1:1(Epiclon 1055:YD−128:CN110NS:YP−50:Irgacure 184:C11ZA)の重量比で反応器内に投入し、メチルエチルケトンで適正に希釈した後、反応器の内部を窒素で置換し、均一化して、硬化性組成物を製造した。
使用された成分の種類および比率を下記表1のように変更したことを除いて、実施例1と同一に硬化性組成物を製造した。
300 レンズ構造物
400 配向層、硬化性組成物の硬化層
500 内部空間
Claims (15)
- エポキシ化合物;前記エポキシ化合物100重量部に対して100重量部未満の比率のビスフェノール型(メタ)アクリレートおよび熱硬化剤を含む硬化性組成物であって、
ビスフェノール型フェノキシ樹脂を更に含む、硬化性組成物。 - エポキシ化合物は、ビスフェノールA型エポキシ樹脂、ビスフェノールF型エポキシ樹脂、ノボラック型エポキシ樹脂、DCPD型エポキシ樹脂、シラン変性エポキシ樹脂および水添ビスフェノールA型エポキシ樹脂よりなる群から選択された一つ以上である、請求項1に記載の硬化性組成物。
- エポキシ化合物は、ビスフェノール型エポキシ化合物である、請求項1に記載の硬化性組成物。
- エポキシ化合物は、軟化点または融点が50℃以上であり、エポキシ当量が150g/eq以上であるビスフェノール型エポキシ樹脂を含む、請求項1に記載の硬化性組成物。
- 軟化点または融点が50℃以上であり、エポキシ当量が150g/eq以上であるビスフェノール型エポキシ樹脂は、エポキシ化合物の全体重量を100重量%とした時、10重量%以上含まれている、請求項4に記載の硬化性組成物。
- ASTM D2196−05規格またはKD−AS−005規格により測定した25℃での粘度が20,000cP以下であり、エポキシ当量が300g/eq以下であるビスフェノール型エポキシ化合物をさらに含む、請求項4に記載の硬化性組成物。
- ASTM D2196−05規格またはKD−AS−005規格により測定した25℃での粘度が20,000cP以下であり、エポキシ当量が300g/eq以下であるビスフェノール型エポキシ化合物は、軟化点または融点が50℃以上であり、エポキシ当量が150g/eq以上であるビスフェノール型エポキシ樹脂100重量部に対して10〜200重量部の比率で含まれる、請求項6に記載の硬化性組成物。
- ビスフェノール型(メタ)アクリレートは、少なくとも1個の(メタ)アクリル系官能基が連結されたビスフェノール骨格を有する化合物である、請求項1に記載の硬化性組成物。
- ビスフェノール型(メタ)アクリレートが下記化学式1で表される、請求項1に記載の硬化性組成物:
- フェノキシ樹脂は、重量平均分子量が30,000〜150,000g/molの範囲内である、請求項1に記載の硬化性組成物。
- 熱硬化剤は、フェノール系硬化剤、トリフェニルホスフィン硬化剤、アミン系硬化剤、酸無水物系硬化剤、イソシアネート系硬化剤、イミダゾール系硬化剤またはメルカプタン系硬化剤である、請求項1に記載の硬化性組成物。
- ラジカル開始剤をさらに含む、請求項1に記載の硬化性組成物。
- 請求項1に記載の硬化性組成物の層をラジカル反応により1次硬化する段階と、1次硬化した前記硬化性組成物の層に配向処理を行う段階と、配向処理が行われた前記硬化性組成物の層を熱硬化する段階とを含む液晶配向性接着剤層の製造方法。
- 対向配置されている第1および第2基板と、前記第1および第2基板の間に存在する液晶層と、前記第1および第2基板のうちいずれか一つの基板の前記液晶層に向かう表面に存在する請求項1に記載の硬化性組成物の硬化層と、を含む光学デバイス。
- 第1および第2基板のうちいずれか一つの基板の液晶層に向かう表面には、レンズ層が存在し、前記レンズ層と他の基板が硬化性組成物の硬化層により付着している、請求項14に記載の光学デバイス。
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US20190276719A1 (en) | 2019-09-12 |
KR102063051B1 (ko) | 2020-01-07 |
KR20180059368A (ko) | 2018-06-04 |
JP2019531372A (ja) | 2019-10-31 |
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