Conveyor belt rubber composition, production method of conveyor belt rubber composition, conveyor belt, and belt conveyor

• Main Authors: ZOU DEQING, MIYAJI JUN, SHINKE YU, UENISHI KAZUYA
• Format: Patent
• Language: Chinese; English
• Published: 27.09.2019
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONVEYING; HANDLING THIN OR FILAMENTARY MATERIAL; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PACKING; PERFORMING OPERATIONS; PNEUMATIC TUBE CONVEYORS; SHOP CONVEYOR SYSTEMS; STORING; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING ORTIPPING; TRANSPORTING

The purpose of the present invention is to provide a conveyor belt rubber composition having excellent cut resistance and wear resistance; a production method of the conveyor belt rubber composition; a conveyor belt formed using the conveyor belt rubber composition; and a belt conveyor equipped with the conveyor belt. The conveyor belt rubber composition contains a diene rubber having at least 50 mass% of an aromatic vinyl-conjugated diene copolymer; in the aromatic vinyl-conjugated diene copolymer, the content of repeating units derived from an aromatic vinyl is greater than 20 mass%, and the ratio of the vinyl structures among the repeating units derived from a conjugated diene is less than or equal to 8 mol%. 本发明的目的是提供耐切割性和耐磨损性优异的输送带用橡胶组合物、上述输送带用橡胶组合物的制造方法、使用上述输送带用橡胶组合物而形成的输送带、以及安装了上述输送带的带式输送机。本发明是一种输送带用橡胶组合物，其含有：包含50质量％以上的芳香族乙烯基化合物-共轭二烯共聚物的二烯系橡胶，上述芳香族乙烯基化合物-共轭二烯共聚物的来源于芳香族乙烯基化合物的重复单元的含量超过20质量％，来源于共轭二烯的重复单元之中的乙烯基结构的比例为8摩尔％以下。