Pan dry spinning process of increased spinning chimney capacity

Details Pan dry spinning process of increased spinning chimney capacity Pan dry spinning process of increased spinning chimney capacity

1989-09-18

1991-05-14

Lorin, Hubert C.

Plastic and nonmetallic article shaping or treating: processes

With printing or coating of workpiece

264130, 264206, 26421117, D01D 504, D01F 618

Patent

active

050154281

ABSTRACT:
A process for dry spinning of synthetic polymers, in particular PAN threads containing more than 85 wt. % acrylonitrile in the PAN (co)polymer, with high spinning chimney capacities of at least 20 kg PAN solid per spinning chimney and hour, using superheated steam as the spinning gas and with in-chimney finishing with water or aqueous finishes.

REFERENCES:
patent: 3458616 (1969-07-01), Guess, Jr. et al.
patent: 4224269 (1980-09-01), Reinehr et al.
patent: 4457884 (1984-07-01), Reinehr et al.
patent: 4622195 (1986-11-01), Bueb et al.
patent: 4804511 (1989-02-01), Piper et al.
patent: 4842793 (1989-06-01), Reinehr et al.

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