Ultrafine fiber of an ethylene tetrafluoride copolymer and a pro

Details Ultrafine fiber of an ethylene tetrafluoride copolymer and a pro Ultrafine fiber of an ethylene tetrafluoride copolymer and a pro

1984-04-02

1986-12-30

Lesmes, George F.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

428903, 526253, 526245, 526255, 526247, 526249, D02G 300, B32B 2700

Patent

active

046328734

ABSTRACT:
Ultrafine fiber of an ethylene tetrafluoride copolymer having an orientation degree (.pi.) of at least 0.6 and an average fineness of 0.0001 to 0.9 denier. A process for producing such fiber or a porous membrane thereof is also disclosed.

REFERENCES:
patent: 3372082 (1968-03-01), Kometani et al.
patent: 3513144 (1970-05-01), Kometani et al.
patent: 4187390 (1980-02-01), Gore
patent: 4381387 (1983-04-01), Sulzbach

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