... weight SBR and results in superior physical SBR1712 , The aromatic oil used is an efficient plasticizer for high molecularweight SBR and ... results in superior physical and processing properties compared to other oil-extended rubbers.It is used on tires , belts, and other ... /T 4498-1997 AOrganic acid /%(m/m) 3.90-5.70GB/T 8657-2000Soap /%(m/m) ≤0.50Bound styrene /%(m/m) 22.5-24.5GB/T ...