Spinning process for producing high strength, high modulus,...

Details Spinning process for producing high strength, high modulus,... Spinning process for producing high strength, high modulus,...

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D01D 5/08 (2006.01) D01D 5/088 (2006.01) D01D 5/092 (2006.01) D01F 6/60 (2006.01) D01F 6/62 (2006.01)

Patent

CA 2040133

ABSTRACT OF THE INVENTION A SPINNING PROCESS FOR PRODUCING HIGH STRENGTH HIGH MODULUS, LOW SHRINKAGE SYNTHETIC YARNS A process for spinning an organic synthetic melt spinnable polymer is disclosed herein. The process includes the steps of: extruding the polymer through a spinneret: passing the filaments from the spinneret through an elongated zone; maintaining the filaments at a temperature above the glass transition temperature of the polymer within the zone; and thereafter converging the filaments. Alternatively, the process includes the steps of: extruding the polymer through a spinneret; providing an elongated zone having a length of at least 5 meters or means for controlling the temperature within said zone from a predetermined maximum to a predetermined minimum; passing the filaments through the zone; and thereafter converging the filaments. D-8089

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