| 摘要 |
PROVIDED ARE A RUBBER COMPOSITION INCLUDING: A RUBBER COMPONENT FORMED OF A DIENE-BASED RUBBER; AND A FILLER, IN WHICH WHEN AN ACTUAL DENSITY DETERMINED BY JIS K6268 METHOD A IS REPRESENTED BY DC, AND A DENSITY AND A MASS FRACTION OF A COMPONENT I DETERMINED BY CONSTITUENT ANALYSIS ARE REPRESENTED BY DI AND ?i, RESPECTIVELY, DC. ?(?i/Di)?0.980 SATISFIES A SPECIFIC RELATIONSHIP, AND HENCE THE RUBBER COMPOSITION REDUCES THE WEIGHT OF A TIRE WITHOUT REDUCING THE DURABILITY OF THE TIRE SUCH AS ABRASION RESISTANCE AND ACHIEVES A HIGH LEVEL OF BALANCE BETWEEN THE WEIGHT REDUCTION AND A REDUCTION IN THE ROLLING RESISTANCE OF THE TIRE, AND A PNEUMATIC TIRE USING THE COMPOSITION. |
