Recovery process for branched polyphenylene

Details Recovery process for branched polyphenylene Recovery process for branched polyphenylene

1977-12-29

1979-12-11

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...

528396, C08G 6110

Patent

active

041784359

ABSTRACT:
An improved method for separating branched polyphenylene from a polymerization reaction mixture is disclosed which improves polymer properties. The contents of a high pressure polymerization reactor are discharged into one or more devolatilizing units which draw off and recycle low molecular weight unreacted species and separate high molecular weight branched polyphenylene.

REFERENCES:
patent: 3280091 (1963-02-01), Dance
patent: 3582498 (1971-06-01), Bilow et al.

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