Preparation of water soluble polymeric flocculants by photopolym

Details Preparation of water soluble polymeric flocculants by photopolym Preparation of water soluble polymeric flocculants by photopolym

1979-06-07

1981-02-24

Welsh, Maurice J.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

20415923, 210734, C08L 3300, C08L 3302

Patent

active

042526256

ABSTRACT:
Water soluble polymeric flocculants are prepared by photopolymerizing olefinically unsaturated hydrophilic monomer(s), the medium of photopolymerization being enveloped in a moist, humid gaseous atmosphere. The humidity of the enveloping environment facilitates solubilization of the resultant flocculants, without substantial decrease in the molecular weights thereof, and ensures against the by-production of water insoluble fractions.

REFERENCES:
patent: 3515657 (1970-06-01), Nakanome et al.
patent: 4049605 (1977-09-01), Kobashi et al.

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