Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Patent
1994-06-15
1997-01-07
Ryan, Patrick J.
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
428397, 428407, 428365, 428364, D02G 300
Patent
active
055915264
ABSTRACT:
The present invention is an expanded polytetrafluoroethylene (PTFE) fiber with improved handling properties. Unlike previous expanded PTFE fibers, the fiber of the present invention employs a fiber of increased thickness so that the fiber is maintained in an unfolded orientation. The improved processing steps of the present invention create a fiber that has a number of improved properties, including more uniform dimensions along its length, improved compressibility and handling, and when woven into a fabric, the fabric is more easily processed, is of higher quality, and is more uniform.
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patent: 5258105 (1993-11-01), Kaczur et al.
patent: 5306869 (1994-04-01), Springer et al.
patent: 5344561 (1994-09-01), Pall et al.
patent: 5348683 (1994-09-01), Kaczur et al.
PCT International Search Report for PCT/US94/11691 (2 pages).
Abrams Brad F.
Dolan John W.
McGregor Gordon L.
Minor Raymond B.
Dixon Merrick
Johns David J.
Ryan Patrick J.
W. L. Gore & Associates, Inc
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