| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a carbon black-compounded diene rubber composition, in which pulverized vulcanized rubber having higher strength and reinforcing property compared to conventional waste tire recycled powder rubber is compounded as a component (recycled rubber component). <P>SOLUTION: The diene rubber composition is prepared by compounding 3 to 30 pts.wt of pulverized vulcanized rubber modified with a compound having a nitroxide free radical and not less than 40 pts.wt of carbon black having a nitrogen adsorption specific surface area (N<SB>2</SB>SA) of not less than 90 m<SP>2</SP>/g, per 100 pts.wt of diene rubber containing not less than 30 wt.% of natural rubber. <P>COPYRIGHT: (C)2011,JPO&INPIT |
