Process for preparation of aqueous solutions of water-...

Details Process for preparation of aqueous solutions of water-... Process for preparation of aqueous solutions of water-...

C - Chemistry, Metallurgy

08

J

400/7010

C08J 3/02 (2006.01) B29B 9/06 (2006.01) B29B 9/16 (2006.01) C08J 3/03 (2006.01)

Patent

CA 1175176

Jacono and Mumper Case 1 IMPROVED PROCESS FOR PREPARATION OF AQUEOUS SOLUTIONS OF WATER-SOLUBLE POLYMERS Abstract of the Disclosure 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 or 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 concen- tration in the solution being prepared.

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