CHLORINE-BASED RESIN COMPOSITION, ELECTRIC WIRE, AND CABLE

• Main Authors: ASHIHARA SHINGO, YASAKI HIROTAKA, MICHIBATA AYANO
• Format: Patent
• Language: English; Japanese
• Published: 12.10.2022
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; BASIC ELECTRIC ELEMENTS; CABLES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONDUCTORS; ELECTRICITY; GENERAL PROCESSES OF COMPOUNDING; INSULATORS; 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; WORKING-UP

To provide a chlorinated polyethylene to be used for a covering material of an electric wire and cable that has high durability satisfying abrasion resistance under severe test conditions even when treated by a silane cross-linking method.SOLUTION: A chlorine-based resin composition is produced by grafting a silane coupling agent to a base polymer obtained by mixing a chlorinated polyethylene having a Mooney viscosity of 85 or more at 121°C and at four minutes after one minute preheating and an ethylene-vinyl acetate copolymer having a melt mass flow rate of 2.5 g/10 min or less under a condition of 190°C and 2.16 kgf and a melting point of 80°C or higher in the range of 90:10-50:50 by mass fraction.SELECTED DRAWING: Figure 1 【課題】電線・ケーブルの被覆材である塩素化ポリエチレンにおいてシラン架橋方式を利用しながらも、過酷な試験条件での耐摩耗性を満足する高い耐久性能を有する材料を提供する。【解決手段】１２１℃、１分予熱後、４分経過時のムーニー粘度が８５以上である塩素化ポリエチレンと、１９０℃、２．１６ｋｇｆの条件でのメルトマスフローレートが２．５ｇ／１０ｍｉｎ以下であり、かつ、融点が８０℃以上であるエチレン酢酸ビニル共重合体とが、質量分率で９０：１０～５０：５０の範囲で混合されたベースポリマに、シランカップリング剤がグラフトされた、塩素系樹脂組成物、を用いる。【選択図】図１