Patent ID: 11858243
Assignee: DOW GLOBAL TECHNOLOGIES LLC
Field: Surface technology, coating (Chemistry)
Classification: CPC B  C | IPC B  C

Claim 0:
1. A uniaxially oriented film comprising an A/B/C/C/B/A structure, wherein:
(a) each A layer comprises polyethylene;
(b) each B layer comprises (i) a first composition comprising an ethylene-based polymer prepared in the presence of a single-site catalyst, wherein the first composition has a density of 0.935 g/cm3 to 0.965 g/cm3, a melt index (I2) of 0.5 to 6 g/10 minutes, and a MWD of 6.0 or less, and (ii) a Ziegler-Natta catalyzed ultra low density polyethylene having a density of 0.880 g/cm3 to 0.912 g/cm3, a melt index (I2) of 0.5 to 6 g/10 minutes, and a MWD of 6.0 or less, wherein each B layer comprises more than 0% by weight and less than 40% by weight of the Ziegler-Natta catalyzed ultra low density polyethylene; and
(c) each C layer comprises a Ziegler-Natta catalyzed ultra low density polyethylene having a density of 0.880 g/cm3 to 0.912 g/cm3, a melt index (I2) of 0.5 to 6 g/10 minutes, and a MWD of 6.0 or less,, wherein the film is oriented in the machine direction at a draw ratio of between 4:1 and 10:1.