Process for continuously preparing shaped articles of aromatic o

Details Process for continuously preparing shaped articles of aromatic o Process for continuously preparing shaped articles of aromatic o

1976-05-13

1977-10-18

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

260 78R, 260 78TF, D01F 600

Patent

active

040546330

ABSTRACT:
An economical process for continuously producing shaped articles of aromatic oxadiazole or aromatic oxadiazole/N-alkylhydrazide polymers from certain monomer solutions is provided. The process involves continuously feeding monomer solution into a heated, pressurized continuous reactor to provide dope which is continuously extruded into an aqueous medium to provide a shaped article.

REFERENCES:
patent: 3886251 (1975-05-01), Sekiguchi et al.
patent: 3944522 (1976-03-01), Tohyama et al.

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