Process for producing homogeneous phase melt of polyacrylonitril

Details Process for producing homogeneous phase melt of polyacrylonitril Process for producing homogeneous phase melt of polyacrylonitril

1995-12-27

1997-10-28

Thurlow, Jeffery R.

Plastic and nonmetallic article shaping or treating: processes

Vacuum treatment of work

159 22, 264140, 264169, 264206, 26433116, B29B 1306, B29C 4736

Patent

active

056815123

ABSTRACT:
A process for producing a homogeneous phase melt of polyacrylonitrile suitable for extrusion molding and melt spinning, by the steps of preparing polymer/water crumb containing 30-60 wt % of polyacrylonitrile and dewatering the crumb in a molten state with stirring at temperatures above 140.degree. C. and at pressures above autogenous pressure until the concentration of the polymer in the crumb exceeds 70% by weight.

REFERENCES:
patent: 2847405 (1958-08-01), Mallison
patent: 3669919 (1972-06-01), Champ
patent: 3847885 (1974-11-01), Peeso
patent: 3896204 (1975-07-01), Goodman et al.
patent: 3940405 (1976-02-01), Serad
patent: 3991153 (1976-11-01), Klausner et al.
patent: 4049605 (1977-09-01), Kobashi et al.
patent: 4062857 (1977-12-01), Kobashi et al.
patent: 4108818 (1978-08-01), Odawara et al.
patent: 4238441 (1980-12-01), Cramer
patent: 4439389 (1984-03-01), Hasenauer
patent: 4461739 (1984-07-01), Young et al.
patent: 4909898 (1990-03-01), Padliya et al.
patent: 5364581 (1994-11-01), Wilkinson

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