Patent ID: 7514130

Claim:
A multilayer plastic container having a wall structure comprising at least two layers, wherein one of said layers is configured to provide an internal layer having a internal wall surface and the other said layer is configured to provide an external layer having an external wall surface, one of said layers consisting essentially of a metallocene-produced medium density polyethylene (mMDPE) resin having a density within the range of 0.925-0.94 g/cm.sup.3 and a melt index, MI2, within the range of 0.5-2.5 g/10 min. and representing from 10-30 wt. % of the total weight of said plastic container, and the other said layers prepared from a high density polyethylene (HDPE) resin, said plastic container having an internal or external surface having a gloss of at least 40 as provided by the layer of medium density polyethylene and having an environmental stress crack resistance as measured by the time to rupture of at least 30 days.