Continuous polymerization of water-miscible monomers

Details Continuous polymerization of water-miscible monomers Continuous polymerization of water-miscible monomers

1980-07-31

1982-05-25

Michl, Paul R.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

526 64, 526 74, 526 62, 524555, C08F 232

Patent

active

043317871

ABSTRACT:
Water-miscible monomers such as acrylamide are polymerized continuously to produce a concentrated solution of a high molecular weight polymer by passing a mixture of a water-immiscible organic liquid and an aqueous solution of at least 20 weight percent of the monomer through a tubular reactor, e.g., a polyethylene tube, having internal surfaces that are readily wetted by the hydrocarbon liquid and polymerizing the monomer in the reactor. The polymerized product is recovered as a water-in-oil emulsion wherein the polymer resides in the dispersed aqueous phase or as a solid strand which is a high solids aqueous solution containing at least 20 weight percent of the water-soluble polymer of the water-miscible monomer.

REFERENCES:
patent: 3951600 (1976-04-01), Asano
patent: 3996180 (1976-12-01), Kane
patent: 3996411 (1976-12-01), Ohshima
patent: 4007320 (1977-02-01), Peterson
patent: 4098977 (1978-07-01), Zweigle
patent: 4117216 (1978-09-01), Witenhafer
patent: 4146690 (1979-03-01), Tago
patent: 4212784 (1980-07-01), Phillips

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