Purging for spinning hydrated acrylic polymer melt

Details Purging for spinning hydrated acrylic polymer melt Purging for spinning hydrated acrylic polymer melt

1979-02-21

1980-10-07

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

With step of cleaning, polishing, or preconditioning...

264206, 264211, B28B 704

Patent

active

042268176

ABSTRACT:
An acrylonitrile polymer composition containing ethylene carbonate and optionally small amounts of water is an effective purge material for start-up and shut-down of melt spinning operations employing hydrated acrylonitrile polymer melts.

REFERENCES:
patent: 2649356 (1953-08-01), Bruson
patent: 2695835 (1954-11-01), Hare
patent: 3651194 (1972-08-01), Bohrer
patent: 3707588 (1972-12-01), Campbell et al.
patent: 3715416 (1973-02-01), Campbell et al.
patent: 3896204 (1975-07-01), Goodman et al.

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