[′stī‚rēn ‚byüd·ə′dī‚ēn ′rəb·ər] (materials) The most common type of synthetic rubber, made by the copolymerization of styrene and butadiene monomers; used in tires, footwear, adhesives, and sealants. Also known as SBR.
styrene-butadiene rubber
A widely used synthetic rubber made by copolymerizing styrene and butadiene monomers.