| 20100184908 | RUBBER COMPOSITION FOR TREAD USED FOR STUDLESS TIRE AND STUDLESS TIRE HAVING TREAD USING THEREOF - It is an object of the present invention to lessen strain dependency of hardness of a tread rubber used for a studless tire, have good performance on snow and ice while securing rigidity on non-snow roads, and improve abrasion resistance. The present invention provides a rubber composition for tread used for a studless tire comprising 30 to 150 parts by weight as a total of (1) silica with a nitrogen absorption specific surface area of at most 100 m | 07-22-2010 |
