Process for improving the strength of fibers from anisotropic-me

Details Process for improving the strength of fibers from anisotropic-me Process for improving the strength of fibers from anisotropic-me

1991-01-09

1992-08-25

Lorin, Hubert C.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

26421117, 264234, 264345, D01F 662

Patent

active

051416930

ABSTRACT:
A process for improving the strength of fibers from anisotropic-melt-forming polyesters involves polymerization of the polyester precursors in the presence of defined amounts of lithium chloride or acetate followed by melt-spinning the polyester into fiber and subjecting the fiber to a specified heat treatment.

REFERENCES:
patent: 4118372 (1978-10-01), Schaefgen
patent: 4183895 (1980-01-01), Luise
patent: 4332759 (1982-06-01), Ide
patent: 4412058 (1983-10-01), Siemionko
patent: 4424184 (1984-01-01), Eskridge et al.
patent: 4574066 (1986-03-01), Gibbon et al.

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