| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rubber composition for winter tires from which a tire having both abrasion resistance and braking performance on ice can be obtained, and to provide a method for manufacturing the rubber composition. <P>SOLUTION: A manufacturing method is used which comprises: a first mixing step of mixing 40-80 pts.mass of natural rubber (A), crosslinked rubber particles having a glass transition point lower than that of the natural rubber (A), and a reinforcing filler; and a second mixing step of adding 20-60 pts.mass of butadiene rubber (B) having a glass transition point lower than that of the natural rubber (A) (wherein the total amount of the butadiene rubber (B) and the natural rubber (A) is 100 pts.mass) to the mixture obtained in the first mixing step and mixing them. <P>COPYRIGHT: (C)2013,JPO&INPIT |
