| 摘要 |
The present invention relates to an ethylene/alpha-olefin copolymer having excellent processability. The ethylene/alpha-olefin copolymer has low complex viscosity at a high shear velocity, and has excellent processability, thereby being capable of being used for a large-diameter pipe, or a combined tube, etc. The ethylene/alpha-olefin copolymer may comprise 0.5 to approximately 10 wt% or, preferably, around 1 to approximately 5 wt% of alpha-olefin. A metallocene catalyst used for the ethylene-alpha-olefin copolymer of the present invention may be a mixture of at least one sort of a first metallocene compound represented by chemical formula 1; and at least one sort of a second metallocene compound selected from the compounds represented by the following chemical formulas, (Cp^1R^a)_n(Cp^2R^b)M^1Z^1_(3-n), (Cp^3R^c)_mB^1(Cp^4R^d)M^2Z^2_(3-m), and (Cp^5R^e)B^2(J)M^3Z^3_2. |
