| 摘要 |
PURPOSE: An ethylene copolymer is provided to have excellent impact resistance and low extraction content and excellent hygienic property by high rigidity thereof. CONSTITUTION: An ethylene copolymer is polymerized by ethylene and (C3-C18) α-olefin co-monomer. The density of the ethylene copolymer is 0.900-0.960 g / cm, the melt index(MI) is 3-50 g/10min, and satisfies equation 1: S >= (8× 10^56) × e^(-144.1D) and equation 2: S <= (3× 10^25) × e^(-61.8D). In equation 1 and 2, S is the content of the ethylene copolymer. The (C3-C18) α-olefin co-monomer is selected from propylene, 1-butene, 1-pentene, 4-methyl-1-pentene, 1-hexene, 1-octene, 1-decene, 1-dodecene and mixtures thereof. |
