| 摘要 |
PROBLEM TO BE SOLVED: To prepare a stretched film excellent in self-adhesiveness, mechanical strengths (e.g. resistances to tear propagation and piercing, breaking strength, and elongation at break), clarity, stretchability, and binding properties. SOLUTION: This film is obtd. from an ethylene/α-olefin copolymer which is obtd. by copolymerizing ethylene and a 3-20C α-olefin in the presence of a catalyst contg. at least one transition metal compd. of the group IV contg. a ligand having an acyclopentadienyl backbone and has a density of 0.86-0.94g/cm<3> , a melt flow rate (MFR) of 0.1-20g/10min, a mol.wt. distribution (Mw/Mn) of 1.5-5.0, and a compsn. distribution parameter (Cb) of 1.01-1.2. |
