| 摘要 |
The present invention relates to a ternary elastic copolymer having a long chain branch and a manufacturing method thereof, which can satisfy excellent processability and elasticity (flexibility) at the same time. The ternary elastic copolymer, as a copolymer of ethylene, alpha-olefin with carbon numbers of 3 to 20, and diene, comprises: i) 100,000 to 500,000 of a weight average molecular weight measured by GPC; ii) pattern viscosity (1+4@125°C) below 30 MU; and iii) 30,000 to 50,000 Pa·s of a difference of kinematic viscosity at each vibration frequency of 1.0 rad/s and 100.0 rad/s measured at 125°C by rubber process analyzer. |
