POLYETHYLENE RESIN, AND SOLAR CELL SEALING MATERIAL AND SOLAR CELL MODULE USING THE SAME

• Main Authors: SHIMIZU HIROYUKI, MASUMURA CHIAKI
• Format: Patent
• Language: English; Japanese
• Published: 08.10.2020
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

To provide a polyethylene resin excellent in crosslinking property, insulation property and cost, and to provide a solar cell sealing material and a solar cell module using the same.SOLUTION: There is provided a polyethylene resin which is an ethylene α-olefin copolymer obtained by performing polymerization using following components (A), (B) and catalyst system including a catalyst activity improving agent represented by specific (C1) or (C2): component (A): a crosslinking metallocene compound having an indenyl skeleton with a substituent; and component (B): a boron compound which is represented by general formula (I) and reacts with the component (A) to form an ion pair, and has a thermal decomposition temperature at which a change in weight occurs under an N2 atmosphere of less than 200°C. BR1 R2 R3...general formula (1), wherein B represents a boron atom; and R1 to R3 may be different and represent H, F, C1-10 alkyl group, C1-10 halogenated alkyl group, and the like.SELECTED DRAWING: None 【課題】架橋特性、絶縁性、コスト面に優れたポリエチレン樹脂、並びにそれを用いた太陽電池封止材及び太陽電池モジュールを提供する。【解決手段】下記成分（Ａ）、（Ｂ）および特定の（Ｃ１）又は（Ｃ２）で表される触媒活性向上剤を含む触媒系を用いて重合を行うことにより得られるエチレン・α−オレフィン共重合体であることを特徴とする、ポリエチレン樹脂。成分（Ａ）：置換基を有するインデニル骨格を有する架橋系メタロセン化合物、成分（Ｂ）：一般式（Ｉ）で表される、成分（Ａ）と反応してイオン対を形成するホウ素化合物であり、Ｎ２雰囲気下における重量変化が起こる熱分解温度が２００℃未満。ＢＲ１Ｒ２Ｒ３・・・一般式（Ｉ）［式中、Ｂはホウ素原子、Ｒ１〜Ｒ３は異なってもよく、Ｈ、Ｆ、Ｃ１〜１０のアルキル基、Ｃ１〜１０のハロゲン化アルキル基等を表す。］【選択図】なし