Process for preparation of aqueous solutions of water-soluble po

Details Process for preparation of aqueous solutions of water-soluble po Process for preparation of aqueous solutions of water-soluble po

1981-07-14

1982-11-09

Schofer, Joseph L.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

264176R, 264141, 264142, C08L10100

Patent

active

043585507

ABSTRACT:
An improved process is provided for rapidly dissolving water-soluble polymer gels in which the gels are subjected to the steps of extrusion, cutting of the extruded gels, forming a slurry of gel particles, subjecting the slurry to high shear forces, and finally mixing the resulting slurry and water to form a dilute aqueous solution of polymer. The improvement comprises cutting of the water-soluble polymer gel, prior to extrusion, into pieces of gel of a size which are small enough to fit into space defined between adjacent flights of the extruder at the feed inlet of the extruder. The process enables dilute aqueous solutions to be prepared on a batch or continuous basis with good reproducibility of polymer concentration in the solution being prepared.

REFERENCES:
patent: B579153 (1976-03-01), Brinkmann et al.
patent: 1671079 (1928-05-01), McManus
patent: 2245640 (1941-06-01), Beattie
patent: 4113688 (1978-09-01), Pearson

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