Porous structure of polytetrafluoroethylene and process for prod

Details Porous structure of polytetrafluoroethylene and process for prod Porous structure of polytetrafluoroethylene and process for prod

1979-11-28

1982-06-01

Bagwill, Robert E.

Apparel and haberdashery

Footwear

Athletic-type

D02G 300

Patent

active

043320350

ABSTRACT:
A porous polytetrafluoroethylene material is disclosed having a molecular microfibrous structure having, at one surface, a strong orientation in a given direction and, at another opposite surface, a strong orientation and a direction at right angles to the first, in which the orientation of the microfibrous structure progressively changes from one surface to the other. A process for preparing such an element is also disclosed.

REFERENCES:
patent: 4082893 (1978-04-01), Okita
patent: 4193138 (1980-03-01), Okita
patent: 4208745 (1980-06-01), Okita

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