Process for post-spin finishing of polybenzoxazole fibers

Details Process for post-spin finishing of polybenzoxazole fibers Process for post-spin finishing of polybenzoxazole fibers

1993-12-03

1995-05-23

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Treating shaped or solid article

To remove entrained material from article

264345, D01F 626

Patent

active

054179157

ABSTRACT:
Improved polybenzoxazole fibers are made by a process for drying a wet, coagulated polybenzoxazole (PBO) fiber including the steps of:

REFERENCES:
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patent: 4581437 (1986-04-01), Mammone
patent: 4772678 (1988-09-01), Sybert et al.
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patent: 4977223 (1990-12-01), Arnold et al.
patent: 4985193 (1991-01-01), Allen
Chemical Abstract 111:196226f (p. 59) (1989).
W. W. Adams et al., AFWAL-TR-86-4011, Processing, Properties, Structure, and Morphology of PBO and ABPBO Polymer Fibers, Aug., 1986.
English Translation of Japan 2-84,509 (published Mar. 26, 1990).

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