| abstract |
HIGH DENSITY POLYETHYLENE COMPOSITION, METHOD TO PRODUCE HIGH DENSITY POLYETHYLENE COMPOSITION, ARTICLE, BOTTLE CLOSURE CLOSURE, METHOD TO IMPROVE BOTTLE CLOSES, AND A PRODUCT OF A BODY PRODUCT high density, method of preparing same, articles made from it, and method for making such articles. The high density polyethylene composition of the present invention includes a first component and a second component. The first component is a high molecular weight ethylene / alpha-olefin copolymer having a density in the range of 0.915 to 0.940 g / cm3, and a melt index (I21.6) in the range of 0.5 to 10 g / 10. minutes The second component is a low molecular weight ethylene polymer having a density in the range of 0.965 to 0.980 g / cm3, and a melt index (i2) in the range of 50 to 1500 g / 10 minutes. The high density polyethylene composition has a melt index (i2) of at least 1, a density in the range 0.950 to 0.960 g / cm3, eg greater than or equal to 1. The method for producing a high density polyethylene composition includes the following steps: (1) introducing ethylene, and one or more alpha-olefin comonomers into a first reactor; (2) |