Method for recovering aromatic polyethers

Details Method for recovering aromatic polyethers Method for recovering aromatic polyethers

1986-04-18

1987-06-16

Kight, John

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

Synthetic resins

Treating polymer containing material or treating a solid...

528492, 528494, 528169, 528168, 528485, C08L 8900

Patent

active

046737308

ABSTRACT:
Method for recovering an aromatic polyether as a solid product from a solution thereof in an organic solvent by precipitating with a fluorohydrocarbon which may also contain chlorine or bromine and which boils at -30.degree. C. to +100.degree. C.

REFERENCES:
patent: 3532677 (1970-10-01), Baron
patent: 4035357 (1977-07-01), Cooper et al.
patent: 4042542 (1977-08-01), Kim
patent: 4097459 (1978-06-01), Bennett et al.
patent: 4492805 (1985-01-01), Besecke et al.
Vollmert, Grundriss der Makomolekularen Chemie, E. Volmert-Verlag, Karlsruhe, 1980, vol. II, p. 31.
Ullmann's Enzyklopaedie der Technischen Chemie, 4th Edn., vol. II, pp. 635-639.
Bindhal et al., Arzneim. Forsch/Drug Research, 30(I), No. 2 (1980), pp. 234-235.

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