ETHYLENIC COPOLYMER AND FILM COMPRISING THE SAME

摘要

The ethylene base copolymer of the present invention having a density d falling in a range of 940 to 970 kg/m<3>, a polydispersion index PDI falling in a range of 25 to 50 and a long chain branch index LCBI falling in a range of 0.6 to 2.0 has a high impact strength and few fish eyes and is excellent in a high extruding characteristic, a high-speed moldability, a bubble stability and a tear strength in molding, and it can be produced via at least two steps of reaction by a slurry polymerization method using a Ziegler catalyst.