Extruding high density polyethylene with low tension cooling...

Details Extruding high density polyethylene with low tension cooling... Extruding high density polyethylene with low tension cooling...

D - Textiles, Paper

01

F

18/627

D01F 6/04 (2006.01) D02J 1/22 (2006.01)

Patent

CA 1083315

ABSTRACT A process for the production of a high modulus filament of polyethylene which comprises heating high density polyethylene to a temperature above its melting point, extruding the polymer to form a filament, subjecting the filament immediately after extrusion to a tension under such conditions that the filament is shaped without substantial orientation of its molecules, cooling the filament at a rate of cooling in excess of 15°C per minute, and drawing the filament to a high draw ratio.

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