ETHYLENE-(?-OLEFIN) COPOLYMER

摘要

An ethylene-(a-olefin) copolymer which has a monomer unit derived from ethylene and a monomer unit derived from an a-olefin having 3-20 carbon atoms, and also has a melt flow rate (MFR) of 0.01-100 g/10 min, a density of 860-970 kg/m3, a molecular weight distribution (Mw/Mn) of 4.5-13, an activation energy (Ea) of 40-100 kJ/mol and a characteristic relaxation time (t) that meets formula (1-1). t -0.6675 (1-1)