Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...
Patent
1990-09-07
1991-04-09
Henderson, Christopher
Liquid purification or separation
Processes
Making an insoluble substance or accreting suspended...
210734, B01D 2101
Patent
active
050062638
ABSTRACT:
An improved cationic water-soluble polymer is prepared from acrylamide, a cationic monomer such as dimethylaminoethyl methacrylate dimethylsulfate quaternary, and a waste stream which is produced as a result of the transesterification reaction between dialkylamino alcohols and acrylates which is used to prepare the cationic monomer. The polymers are especially useful in dewatering applications.
Robinson Peter M.
Van Det Nguyen
Exxon Chemical Patents Inc.
Henderson Christopher
Mahon J. J.
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