Purification of polymer solution

Details Purification of polymer solution Purification of polymer solution

1977-12-19

1979-12-04

Briggs, Sr., Wilbert J.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528196, 525462, C08J 300, C08G 6374, C08G 6362

Patent

active

041773438

ABSTRACT:
Undesired impurities in polymer solutions, such as amine scavenging agents or hydrochloric acid, are removed by passing a contaminated polymer solution through a strong acid cation exchange resin bed.

REFERENCES:
patent: 2865960 (1958-12-01), Shearer et al.
patent: 3036036 (1962-05-01), Howe
patent: 3141005 (1964-07-01), Noll
patent: 3144432 (1964-08-01), Fox
patent: 3437639 (1969-04-01), Beach et al.
patent: 3939118 (1976-02-01), Horbach et al.
Polycarbonates; E. D. Oliver, Stanford Research Institute Report No. 50, pp. 26-33, Apr. 1969.
Polycarbonates; E. D. Oliver, Stanford Research Institute Report 50A Supplement, pp. 7 & 32-37, Sep. 1975.

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