CHLOROPRENE RUBBER COMPOSITION AND VULCANIZED RUBBER THEREOF AND RUBBER MOLDED PRODUCT VIBRATION DAMPING RUBBER MEMBER ENGINE MOUNT AND HOSE USING VULCANIZED RUBBER

摘要

1282121 7Provided is technology with which it is possible to further improve vibration damping properties in low temperature environments without compromising the mechanical properties compression set or tensile fatigue of chloroprene rubber. Provided is a chloroprene rubber composition at least comprising 100 parts by mass of a chloroprene rubber containing at least a xanthogen modified chloroprene rubber or a mercaptane modified chloroprene rubber 15 to 150 parts by mass of carbon black having a number average grain size of 70 nm to 600 nm and a DBP oil absorption of 15 mL/100 g to 60 mL/100 g as measured by JIS K6221 oil absorption method A and 3 to 30 parts by mass of a plasticizer represented by chemical formula (1): RCOO (CH) COOR···(1) (where R and R are C alkyl groups).