| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rubber composition giving a tire improved in a low heat generation property and the tire produced by using the same rubber composition as its member, especially the pneumatic tire. <P>SOLUTION: This rubber composition is characterized by includes (A) a rubber component including (a-1) 10 to 100 mass% modified conjugated diene-based polymer obtained by bonding a modifying group having ≥1 each of a functional group having a filler surface-concentrating capacity and an acidic functional group with the polymerizable active terminal of a conjugated diene-based polymer, and (a-2) 90 to 0 mass% natural rubber and/or a diene-based synthetic rubber, (B) 5-200 pts.mass inorganic filler based on 100 pts.mass of the rubber component and also (C) 1 to 25 mass% of a silane coupling agent having an atom or a functional group capable of bonding with the inorganic filler and a thioester group and/or a dithioester group based on the amount of inorganic filler (B) component; and the tire produced by using the rubber composition as its member is also provided. <P>COPYRIGHT: (C)2012,JPO&INPIT |
