isoprene

1.There is no isoprene rubber production industry in China at present which shows properous business opportunity in isoprene rubber production.

目前国内尚没有异戊生产企业，异戊产品商机无限。

2.Abstract： The C5 Fraction derived from ethylene steamcracker contains some very useful components, isoprene, cyclopentadiene and piperylene.

摘 ： 来自裂解乙烯的C5馏份含有非常有用的化工原料——异戊二烯、环戊二烯、戊间二烯。