Rotary process for forming uniform material

Details Rotary process for forming uniform material Rotary process for forming uniform material

2011-08-16

2011-08-16

Johnson, Christina (Department: 1742)

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

C264S173100, C264S175000

Reexamination Certificate

active

07998388

ABSTRACT:
A thin, uniform membrane comprising polymeric fibrils or a combination of fibrils and particles, wherein the fibrils have randomly convoluted cross-sections, and a process for making the membrane are disclosed. The membrane may be on the surface of a substrate as part of a composite sheet, or as a stand-alone structure.

REFERENCES:
patent: 7118698 (2006-10-01), Armantrout et al.
patent: 2004/0219345 (2004-11-01), Armantrout et al.

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