TIRE TREAD BASED ON INTEGRATED RUBBER

• Main Author: HELLERMANN WALTER DR
• Format: Patent
• Language: English
• Published: 27.01.1998
• Edition: 6
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DEVICES OR ARRANGEMENTS RELATED TO TYRES; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; TYRE CHANGING OR REPAIRING; TYRE INFLATION; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; VEHICLE TYRES; VEHICLES IN GENERAL

PROBLEM TO BE SOLVED: To provide a tire tread showing a good wet slip behavior without changing rolling resistance in braking using ABS (antilock brake system) and excellent in ABS braking property, by blending a tread rubber based on an integrated rubber having a specific roomtemperature elastic modulus with natural rubber. SOLUTION: This tire tread is based on an integrated rubber having 5-35% room temperature elastic modulus at 22 deg.C [e.g. a block copolymer consisting of (A) 40-80% butadiene based block having 8-60% homogeneously dispersed vinyl group content and (B) a block based on <=60% butadiene, 0-60% isoprene and 0-45% styrene, and of which diene units have 75-90% vinyl group content] and an ordinary additive. The tire tread is improved in rolling resistance and wet slip behavior in braking using ABS (antilock brake system). The tire tread is obtained by blending a tread rubber X with a natural rubber Y. In addition, it is preferable that the component Y is blended with the component X so that the blending ratio of components X:Y is (90:10) to (40:60).