RESIN COMPOSITION, PELLET, POWER CABLE, AND METHOD FOR PRODUCING POWER CABLE

• Main Authors: YAMANA KENJI, YAMAZAKI SATOSHI, YAMAZAKI TAKANORI, IZUMI NAOKI, HOSOMIZU KOHEI
• Format: Patent
• Language: English; Japanese
• Published: 16.05.2024
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONDUCTORS; ELECTRICITY; INSULATORS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

To improve insulation properties of an insulating layer.SOLUTION: A resin composition constitutes an insulating layer of a power cable. The resin composition contains polyethylene. The polyethylene has methine groups. The polyethylene satisfies formula (1) in a 13C nuclear magnetic resonance spectrum: RX≤5 (1), wherein RX={X/(X+Y+Z)}×100, where X, Y and Z each represent an integral intensity of methine groups, an integral intensity of methylene groups, and an integral intensity of methyl groups in the 13C nuclear magnetic resonance spectrum of the polyethylene.SELECTED DRAWING: Figure 1 【課題】絶縁層の絶縁性を向上させる。【解決手段】樹脂組成物は、電力ケーブルの絶縁層を構成する樹脂組成物であって、ポリエチレンを含み、ポリエチレンは、メチン基を有し、ポリエチレンは、１３Ｃ核磁気共鳴スペクトルにおいて式（１）を満たす、ＲＸ≦５ ・・・（１）。ここで、ＲＸ＝｛Ｘ／（Ｘ＋Ｙ＋Ｚ）｝×１００であり、Ｘ、ＹおよびＺは、それぞれ、ポリエチレンの１３Ｃ核磁気共鳴スペクトルにおけるメチン基の積分強度、メチレン基の積分強度、およびメチル基の積分強度である。【選択図】図１