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US 2013/0253100 A1Published application
Omnidirectional Fracture Film and Process for Manufacturing Same
OwnerRobert D. Bailey, Benjamin C. Tran +2inventors
InventorsRobert D. Bailey, Benjamin C. Tran, Frank F. Su, Jack Randal Wilkerson
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Abstract
Embodiments of the invention blend polyethylene (PE), polypropylene (PP), and polystyrene (PS) with calcium carbonate (CC) or other filler(s) to form a single or multi-layer plastic film. The result is an improved plastic film that retains the beneficial properties of conventional plastic films, but can also be easily fractured and creased. Embodiments of the invention also provide a method for manufacturing the single or multi-layer plastic film.
Claims19
A plastic film comprising:
- polyethylene (PE);
- polypropylene (PP);
- a filler, the filler including at least one of a rock-based mineral and a plant-based fiber;
- and
- polystyrene (PS), the plastic film being thus configured to fracture and crease more readily than a plastic film not including the filler.
2 more elements
Dependencies are inferred from the claim text.