Patent ID: 8841396
Filing Date: 2014-09-23
Classification: C08F

Abstract:
1. An ethylene-α-olefin copolymer comprising monomer units derived from ethylene and monomer units derived from an α-olefin having 3 to 20 carbon atoms, wherein the ethylene-α-olefin copolymer has a density (d) of 860 to 950 kg/m 3 and a melt flow rate (MFR) of 0.01 to 100 g/10 min, wherein in a molecular weight curve measured by gel permeation chromatography (GPC), a molecular weight of the copolymer providing the highest peak exists within the range of 10,000 to 20,000, wherein a height of the peak at a molecular weight of 177,000 is 5 to 30% where the height of the highest peak is 100%, wherein a characteristic relaxation time (t) of the copolymer satisfies a relationship represented by formula (I), and wherein the ethylene-α-olefin copolymer exhibits more than one melt peak observed by a differential scanning calorimeter (DSC)