Stretch hoods made from ULDPE-rich formulations

摘要

A polymeric, mono- or multilayer stretch hood packaging film with an overall density that does not exceed 0.920 g/cc includes: A. At least one core layer containing: 1. At least 50 wt % ULDPE with a density of 0.900 to 0.920 g/cc; and 2. Optionally at least one of: a. LDPE with a density of 0.915 to 0.925 g/cc, and b. EVA with a VA content of 4 to 20 wt %; and B. Optionally, two skin layers, each skin layer independently comprising: 1. At least 50 wt % ULDPE with a density of 0.900 to 0.920 g/cc; and 2. Optionally an LDPE with a density of 0.915 to 0.925 g/cc.

主权项

1. A polymeric, multilayered stretch hood packaging film with an overall density that does not exceed 0.920 g/cc and comprising:
A. A core layer comprising:
1. 80 to 50 wt % of the film; and2. consisting essentially of from less than 100 to 50 wt % ULDPE with a density of 0.900 to 0.920 g/cc and from greater than 0 to 50 wt % EVA with a vinyl acetate content of 5 to 20 wt %; and B. Two skin layers each comprising:
1. 10 to 25 wt % of the film; and2. from less than 100 to 75 wt % ULDPE with a density of 0.900 to 0.920 g/cc, and no greater than 25 wt % LDPE with a density of 0.915 to 0.925 g/cc.