| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rubber composition containing an amorphous sodium aluminum silicate with good dispersibility to a rubber component to improve abrasion resistance, and a pneumatic tire using the same. <P>SOLUTION: The rubber composition contains the amorphous sodium aluminum silicate expressed by general formula: (xNa<SB POS="POST">2</SB>O)(ySiO<SB POS="POST">2</SB>)(Al<SB POS="POST">2</SB>O<SB POS="POST">3</SB>)(zH<SB POS="POST">2</SB>O), (wherein x is 0.3 to 1.0, y is 10 to 60, and z is 4 to 10), wherein the amorphous sodium aluminum silicate has a volume average particle size of 15 μm or less measured by a laser light scattering method. <P>COPYRIGHT: (C)2013,JPO&INPIT |
