Multilayer polyolefin substrate with low density core and...

Details Multilayer polyolefin substrate with low density core and... Multilayer polyolefin substrate with low density core and...

2005-09-20

2005-09-20

Jackson, Monique R. (Department: 1773)

Stock material or miscellaneous articles

Composite

Of addition polymer from unsaturated monomers

C428S516000, C428S910000

Reexamination Certificate

active

06946203

ABSTRACT:
A biaxially oriented thermoplastic structure including a low density core layer formed from polypropylene, highly crystalline polypropylene or high density polyethylene, and outer layers formed from highly crystalline polypropylene or high density polyethylene. The thickness of the core layer is about 60 to about 95% of the overall thickness of the structure. The stiffness of the structure in the machine direction is in a range from about 0.015 to about 0.15 pound force-centimeters.

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