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US 2019/0153183 A1Published application
Tear resistant mono-axially oriented propylene-based film
AssigneeToray Plastics (America), Inc.
InventorsMatthew H. BROWN, Harold Egon KOEHN, Claudio M. PAULINO
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Abstract
Described is a mono-axially oriented polyolefin film including a core or base layer containing a plurality of voids formed by a cavitating agent, wherein the film is oriented at least 4 times in the machine direction, and exhibits excellent tear resistance in the transverse direction.
Claims19
A method of making a mono-axially oriented polyolefin film comprising:
- extruding a film comprising a layer, wherein the layer comprises a propylene-based polyolefin and a voiding agent;
- orienting the film at least 4 times in the machine direction.
Dependencies are inferred from the claim text.