ELASTOMER CONTAINING PARTIALLY ORIENTED REINFORCING FIBER, TIRE PRODUCED USING SAID ELASTOMER AND PRODUCTION THEREOF

摘要

PURPOSE: To provide a tread base elastomer matrix fiber reinforcement, wherein the desired good balance of a fiber reinforced composite material is obtained at minimum costs, and especially a tire strength is improved and a fissure growth speed is reduced. CONSTITUTION: A mixture between a partially oriented fiber (length of 0.2 to 12 mm, diameter of 0.005 to 0.03 mm, and aspect ratio of 25 to 1000) having a modulus lower than 10 Gpa and a fibrillated valve fiber is used as a fiber reinforcing material.