Polyolefin
AssigneeHanwha Solutions Corporation
InventorsIn Jun Lee, Jisong Jo
Life of this patent
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Abstract
The present invention relates to a polyolefin and a film molded therefrom. Specifically, the present invention relates to a polyolefin, particularly a linear low-density polyethylene, which is prepared by a hybrid catalyst comprising different transition metal compounds and has excellent processability, impact strength, and haze, and to a film prepared therefrom.
Claims11
A polyolefin having (1) a molecular weight distribution represented as a polydispersity index (Mw/Mn) of 5 to 20, (2) a density of 0.910 to 0.930 g/cm3, (3) a melt index of 0.5 to 2.0 g/10 minutes when measured at 190° C. under a load of 2.16 kg, (4) a melt index ratio (MI21.6/MI2.16) of 20 to 30, and (5) a c2 value of −0.3 to −0.2 when a graph of complex index (Pa·s) with respect to frequency (rad/s) is fitted with a power law of the following Equation 2:
- y=c1xc2. [Equation 2]
A polyolefin having (1) a molecular weight distribution represented as a polydispersity index (Mw/Mn) of 5 to 20, (2) a density of 0.910 to 0.930 g/cm3, (3) a melt index of 0.5 to 2.0 g/10 minutes when measured at 190° ° C. under a load of 2.16 kg, (4) a melt index ratio (MI21.6/MI2.16) of 20 to 30, and (5) a shear thinning index of 10 to 15 as defined by the following Equation 3:
- Shear thinning index=η0/η500 [Equation 3]
- in Equation 3, η0 is a complex viscosity at a frequency of 0.1 rad/s, and η500 is a complex viscosity at a frequency of 500 rad/s.
Dependencies are inferred from the claim text.