Process for preparing water-soluble polymers

Details Process for preparing water-soluble polymers Process for preparing water-soluble polymers

C - Chemistry, Metallurgy

08

F

402/372, 204/91.

C08F 2/10 (2006.01) C08F 2/50 (2006.01) C08F 20/00 (2006.01)

Patent

CA 1246789

ABSTRACT OF THE DISCLOSURE An improved process for preparing a water- soluble polymer having an excellent water solubility and a high molecular weight, which comprises subjecting a thin layer of an aqueous solution of a water-soluble vinyl-monomer to polymerization on a solid support, covering the thin layer with a substantially water- insoluble organic material, e.g. a paraffin, a silicone oil or a low molecular polyethylene, and/or a slightly water-soluble or substantially water-insoluble alkylene oxide adduct at least at a point of time when the aqueous monomer solution has not freely flowed, and further continuing the polymerization.

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