Purification of polymer solutions

Details Purification of polymer solutions Purification of polymer solutions

1985-02-22

1986-05-06

Michl, Paul R.

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

Synthetic resins

Treating polymer containing material or treating a solid...

C08F 612

Patent

active

045873305

ABSTRACT:
Cloudy material in organic diluent solutions of polymers prepared by anionic polymerization with a lithium initiator is removed by treating the polymer solutions resulting from the polymerization with boric acid, separating the solid material from the solutions, and isolating the polymer.

REFERENCES:
patent: 3177191 (1965-04-01), De Vries et al.
patent: 3287344 (1966-11-01), Strobel
patent: 3309348 (1967-03-01), Wentz, Jr.
patent: 3801520 (1974-04-01), Hogan et al.
patent: 4415695 (1983-11-01), Sarkar

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