Process for purifying a polyether

Details Process for purifying a polyether Process for purifying a polyether

1997-12-16

1999-10-26

Shaver, Paul F.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From silicon reactant having at least one...

556445, 568699, 528 25, 528 29, C07F 708

Patent

active

059730960

ABSTRACT:
A process for purifying a polyether, which comprises adding to a polyether (A) containing a first salt, water (B) and a compound (C) which is capable of reacting with an ion constituting the first salt to form a second salt which is essentially insoluble in the polyether (A), then removing water, followed by removing the second salt from the polyether (A).

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patent: 5565068 (1996-10-01), Parker et al.
patent: 5811566 (1998-09-01), Watabe et al.

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