Quaternized epichlorohydrin copolymer useful in treating potable water and method of preparation

摘要

This invention relates to a water soluble quaternized epihalohydrin copolymer. The copolymer is prepared by first reacting an epihalohydrin with a polyepoxide in an organic solvent in the presence of a polymerization catalyst. The copolymer thus produced is then quaternized by reacting it with a tertiary amine. The quaternized epihalohydrin copolymer is useful in removing suspended solids from aqueous dispersions. It is particularly useful in processes for clarifying raw water.