Patent ID: 7312279
Filing Date: 2007-12-25
Classification: C08J,C08L

Abstract:
1. A high density polyethylene composition, comprising: (a) a bimodal polyethylene component that includes a high molecular weight polyethylene component having a high average molecular weight (MWHMW) and a low molecular weight polyethylene component having a low average molecular weight (MWLMW), wherein the ratio of the high average molecular weight to the low average molecular weight (MWHMW:MWLMW) is 20 or more, wherein the high and low molecular weight polyethylene components of the bimodal polyethylene component are formed in a single reactor; and (b) a unimodal polyethylene component that comprises more than 15 wt % of the composition; wherein: (c) the composition has a density of 0.935 g/cc or more, and a Maximum Line Speed of 170 feet per minute or more.