ELASTOMERIC TERPOLYMER CONTAINING DIENE MONOMER AND PRODUCTION METHOD THEREFOR

摘要

The present invention relates to an elastomeric terpolymer having both superior mechanical properties and elasticity (flexibility) and a production method therefor. The elastomeric terpolymer is a copolymer comprising: 40 to 70 wt% of ethylene, 15 to 55 wt% of α-olefins having a carbon number of 3 to 20; and 0.5 to 20 wt% of a diene monomer, in the presence of a transition metal catalyst of periodic group IV, wherein i) a weight average molecular weight measured by a GPC is 100,000 to 500,000, and ii) a difference between a &Dgr;tanδ value at an angular frequency of 0.2 rad/s and a tanδ value at an angular frequency of 100.0 rad/s measured at 100°C by a rubber process analyzer is 0.5 or less.