| 摘要 |
<p>Applicants have discovered that certain polyethylene (PE) homopolymers or copolymers of ethylene and C3 to C-f o alpha-olefin monomers are more suita ble for oriented processes than other polyethylene resins. In an aspect, the PE has a MFI of 0.3 g/10 min. to 5.0 g/10 min,, a melting point of from 11O 0C to 140°C, a density of from 0.912 g/cm3 to 0.965 g/cm3(%), a haze of 10% or less, a clarity of at least 90, and a gloss of at (east 60. The polyethyl ene is heated and formed into an article, cooled, and then the article is st retch oriented. In an embodiment, the film, tape, the melt extruded, injecti on blow molded, injection stretch blow molded, cast, and thermoformed articl es that can be produced with this polyethylene has a thickness of 0.1 miI to 100 mils. The polyethylene exhibits excellent elasticity, toughness, stretc h and optical properties for such applications.</p> |
