TOKYO — Synthetic rubber producer JSR Corp. has developed a styrene-butadiene copolymer rubber (SBR) it claims can yield 50% better wear resistance along with low fuel consumption and improved grip performance when used as the tread compound in automotive tires compared with tires made "conventional" SBR.
Tokyo-based JSR said the new SBR type exhibits "significantly improved" mechanical strength and wear resistance compared with conventional SBR.
Developed to meet the demands of future mobility, the new rubber combines JSR's "unique polymerization and hydrogenation technologies" to control the number of unsaturated bonds in the material.
Through this process, explained JSR, it is possible to optimize the interactions among polymer molecules and minimize the stress produced in crosslinking.
"As a result, this new SBR has, not only approximately two times the mechanical strength of conventional SBR, but also exceeds the strength of natural rubber," the Japanese materials supplier added.
JSR will present the material during the International Elastomer Conference being held Oct. 8-10 in Cleveland, Ohio.