| 摘要 |
Desired is a technology for improving the vibration-damping properties of a chloroprene rubber under low-temperature environment without deterioration of the mechanical properties, permanent compression set, and tension fatigue. Provided is a chloroprene rubber composition, comprising a chloroprene rubber at least containing a xanthogen-modified chloroprene rubber and/or a mercaptan-modified chloroprene rubber in an amount of 100 parts by mass, a carbon black having a number-average particle diameter of 70 nm to 600 nm and a DBP oil absorption, as determined by the Oil Absorption A method of JIS-K6221, of 15 ml/100g to 60 ml/100g in an amount of 15 to 150 parts by mass, and a plasticizer represented by the following Chemical Formula (1) in an amount of 3 to 30 parts by mass:
[C. 1]
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒR 1 COO-(CH 2 ) 8 -COOR 2 €ƒ€ƒ€ƒ€ƒ€ƒ(1)
(wherein, R 1 and R 2 each represent an alkyl group having a carbon number of 1 to 7). |
