| abstract |
According to the present invention, ethylene, HFP and when in demand, a monomer copolymerizable therewith can be emulsion polymerized at a low temperature of −20° C. to 40° C. at a high polymerization rate. Furthermore, the obtained elastomeric E-HFP copolymer has few branches and is excellent in processability. n Also, as mentioned before, the obtained vulcanizate has excellent heat resistance, oil resistance, amine resistance and chemical resistance and can be used for various parts in the automobile, aircraft and semiconductor industries. Utilizing this heat resistance, oil resistance and amine resistance, the vulcanized composition is particularly suitable for oil seal or oil seal parts such as a hose for the engine oil, ATF oil, gear oil and CVT oil of an automobile. |