Elastic terpolymer including diene group and preparation method thereof

摘要

The present invention relates to an elastic terpolymer which can satisfy excellent processability and elasticity (flexibility) at the same time, and a preparation method thereof. The elastic terpolymer is a copolymer of 40 to 70 weight % of ethylene, 15 to 55 weight % of a C3-C20 alpha-olefin, and 0.5 to 20 weight % of a diene obtained in the presence of a group 4 transition metal catalyst, of which i) the weight average molecular weight measured by GPC is 100,000 to 500,000, and ii) Δ tan δ, the difference between the tan δ values at the angular frequencies of 0.2 rad/s and 100.0 rad/s, is 0.5 or less that is measured at 100° C. by using a rubber process analyzer.

主权项

1. An elastic terpolymer of 40 to 70 weight % of ethylene, 15 to 55 weight % of a C3-C20 alpha-olefin, and 0.5 to 20 weight % of a diene obtained in the presence of a group 4 transition metal catalyst, of which
i) the weight average molecular weight measured by GPC is 100,000 to 500,000, and ii) Δ tan δ, the difference between the tan δ values at the angular frequencies of 0.2 rad/s and 100.0 rad/s measured at 100° C. by using a rubber process analyzer, is 0.5 or less.