EPOXIDIZED POLYISOPRENE TIRE TREAD

The present invention relates to a tire tread comprising a rubber composition which improves the compromise between wear and durability of the tire, especially a tire intended to run off-road. The composition comprises: from more than 50 to 100 phr of a polyisoprene matrix, the polyisoprene matrix c...

Full description

Saved in:
Bibliographic Details
Main Authors JOSEPH AURÉLIE, CLADIERE JULIEN
Format Patent
LanguageEnglish
Published 06.07.2017
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
DEVICES OR ARRANGEMENTS RELATED TO TYRES
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
TYRE CHANGING OR REPAIRING
TYRE INFLATION
VEHICLE TYRES
VEHICLES IN GENERAL
Online AccessGet full text

Cover

More Information
Summary:The present invention relates to a tire tread comprising a rubber composition which improves the compromise between wear and durability of the tire, especially a tire intended to run off-road. The composition comprises: from more than 50 to 100 phr of a polyisoprene matrix, the polyisoprene matrix containing an epoxidized polyisoprene having a molar degree of epoxidation ranging from 5% to less than 50%, a carbon black and a silica, the weight of carbon black being greater than 50% of the total weight of carbon black and silica, from 0 to less than 2 phr of a coupling agent, and a crosslinking system. The epoxidized polyisoprene is an epoxidized natural rubber or an epoxidized synthetic polyisoprene having a molar content of 1,4-cis bonds of at least 90% before epoxidation, or a mixture thereof, and, if the epoxidized polyisoprene is an epoxidized polyisoprene having a molar degree of epoxidation of from 5% to 25%, the rubber composition contains more than 50 phr of epoxidized polyisoprene.
Bibliography:Application Number: US201515116963