Process for production of yarns and fibers with good properties,

Details Process for production of yarns and fibers with good properties, Process for production of yarns and fibers with good properties,

1986-05-23

1987-11-17

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

With crimping or crinkling of strands of filaments

264205, 2642102, 2642105, 2642108, 26421117, 2642356, 2642896, 2642905, D02G 100

Patent

active

047073195

ABSTRACT:
Yarns and fibers based on atactic polyvinyl chloride possess a residual shrinkage in boiling water of less than 3%, a modulus of elasticity which is greater than or equal to 2 kN/mm.sup.2, an orientation index of the crystalline zones which is greater than or equal to 70%, an orientation index of the mesomorphic zones which is greater than or equal to 8%, and an orientation index of the amorphous zones which is greater than or equal to 5%. They are obtained by spinning and stretching in a known manner, then stabilization under tension at a temperature between 105.degree. and 130.degree. C., in the presence of steam under pressure, for 1 to 3 seconds, and then shrinkage in an aqueous fluid medium at a temperature between 98.degree. and 130.degree. C.

REFERENCES:
patent: 2984593 (1961-05-01), Iaaksen et al.
patent: 3372219 (1968-03-01), Gord
patent: 3380953 (1968-04-01), Fukushima
patent: 3388201 (1968-06-01), Mazzolini et al.
patent: 3424833 (1969-01-01), Mazzolini et al.
patent: 3444269 (1969-05-01), Beer
patent: 3490223 (1970-01-01), Mazzolini et al.
patent: 3673167 (1972-06-01), Ledoux et al.
patent: 3907954 (1975-09-01), Mansmann et al.

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