| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a chloroprene rubber composition good in roll processability and excellent in bleedlessness even due to addition of a large amount of a plasticizer; and to provide a low-hardness vulcanizate obtained from the same. <P>SOLUTION: The chloroprene rubber composition contains: 100 pts.mass of chloroprene rubber being at least one selected from mercaptane-modified chloroprene rubber and xanthogene-modified chloroprene rubber and having a Mooney viscosity (ML(1+4) 100°C) of 60 to 140; 10 to 30 pts.mass of a carbon black having a number-average particle diameter of 60 nm to 500 nm and a DBP oil absorption amount by the JIS-K6221 oil absorption amount A method of 25 to 160 ml/100-g; 80 to 140 pts.mass of at least one plasticizer selected from phthalate-based plasticizers, naphthenic rubber oils, etheric and esteric plasticizers and petroleum aromatic process oils; and 20 to 100 pts.mass of factice. <P>COPYRIGHT: (C)2012,JPO&INPIT |
