Polymer fractionation

Details Polymer fractionation Polymer fractionation

1982-09-30

1985-04-09

Henderson, Christopher A.

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

Synthetic resins

Treating polymer containing material or treating a solid...

44 62, 528502, C08F 604

Patent

active

045103046

ABSTRACT:
Soluble polymers are fractionated according to molecular weight by cryogenically comminuting the polymer and introducing the polymer particles, while still in the active state induced by cryogenic grinding, into a liquid having a solvent power selected to produce a coacervate fraction containing high molecular weight polymer species and a dilute polymer solution containing lower molecular weight polymer species. The coacervate may be physically separated from the solution and finds use in the production of antimisting jet fuels and the like.

REFERENCES:
patent: 2993020 (1961-07-01), Carpenter
patent: 3790538 (1974-02-01), Schon

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