Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Patent
1993-02-26
1995-07-04
Foelak, Morton
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
521 56, 521 59, 521138, 428373, 428376, 428379, 428372, 606231, 57903, 57905, 57907, 2275, 81301, 264343, D02G 302
Patent
active
054298695
ABSTRACT:
The present invention provides improved compositions of expanded polytetrafluoroethylene (PTFE) and similar polymers and methods for forming and using such compositions. In its preferred embodiment, the present invention employs a mixture of PTFE and expandable thermoplastic microspheres. Through application of an energy source to the mixture, a coherent three dimensional expansion of PTFE can be achieved. The expanded mixture has many of the same beneficial properties of mechanically expanded PTFE and numerous properties previously unavailable with expanded PTFE products.
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Hubis Daniel E.
McGregor Gordon L.
Minor Raymond B.
Mortimer, Jr. William P.
Foelak Morton
Johns David J.
Johnson R. F.
W. L. Gore & Associates, Inc.
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