Polybenzazole fibers with ultra-high physical properties and met

Details Polybenzazole fibers with ultra-high physical properties and met Polybenzazole fibers with ultra-high physical properties and met

1993-11-15

1994-10-18

Foelak, Morton

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

26421112, 26421113, 26421119, 2642108, 528183, 528321, 528337, 528342, D01D 504, D01D 1002

Patent

active

053565843

ABSTRACT:
A process for making PBZ fibers of ultra-high physical properties is given. Polybenzoxazole fibers made by the process of this invention have tensile strengths nearly double in value from what has been reported previously.

REFERENCES:
patent: 4533693 (1985-08-01), Wolfe et al.
patent: 5286833 (1994-02-01), Bubeck et al.
patent: 5296185 (1994-03-01), Chau et al.

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