Process for preparing filamentary microtapes of labyrinthian cross section
United States Patent 3372221

Inventors:
Lefevre, Lloyd E.
Mathieson, Robert J.
Publication Date:
03/05/1968
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Assignee:
DOW CHEMICAL CO
Primary Class:
264/285
Other Classes:
28/246, 264/288.800, 264/290.700, 264/287
International Classes:
D01D5/00
US Patent References:
3001354Method and apparatus for making twisted plastic sticks
3077004Filament drawing