Process of making polyketon yarn

Plastic and nonmetallic article shaping or treating: processes – With twining – plying – braiding – or textile fabric formation

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264203, 2642107, 2642108, 26421116, 264233, D01D 512, D01F 626, D02G 300

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active

057141010

ABSTRACT:
The invention relates to polyketone yarns of which the maximum tangential modulus at an elongation of more than 0.2% is at least 10 N/tex which display both high strength and, if so desired, a high elongation at break. The quality number, which is measured on a single filament out of a bundle of at least about 30 filaments spun simultaneously through one spinneret and given as .sigma., .epsilon., is higher than 85 mN/tex, preferably higher than 100 mN/tex. The quality number of a yarn spun through one spinneret of one or more holes is higher than 110 mN/tex, preferably higher than 120 mN/tex. The yarns are manufactured by extruding a solution of a linear polymer of alternating ethylene and carbon monoxide units in a resorcinol-containing solvent, after which the solvent is removed with the aid of methanol as coagulant.

REFERENCES:
International Search Report dated Sep. 20, 1993 for PCT/EP93/01586.

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