Purification of polycarbonate solution

Details Purification of polycarbonate solution Purification of polycarbonate solution

1976-11-01

1978-03-14

Spear, Jr., Frank A.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210321R, B01D 1100

Patent

active

040789993

ABSTRACT:
Substantial depletion of pyridine hydrochloride from a polycarbonate reaction solution is accomplished in a non-aqueous system by dialyzing the polycarbonate solution against a sweep solvent in a permeability separatory unit.

REFERENCES:
patent: B524806 (1976-03-01), Ladha et al.
patent: 3228876 (1966-01-01), Mahon
patent: 3228877 (1966-01-01), Mahon
patent: 3244620 (1966-04-01), Hansen et al.

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