Patent 7371791 was granted and assigned to Sumitomo Rubber Industries on May, 2008 by the United States Patent and Trademark Office.
A high performance rubber composition using a plasticizer derived from resources other than petroleum and a pneumatic tire using the same are provided. The rubber composition includes a rubber component containing at least 50% by weight of a natural rubber and/or a modified natural rubber and a terpene (co)polymer having a number average molecular weight of at most 700, and a pneumatic tire containing the same.