Quaternized epichlorohydrin copolymer useful in treating potable

Details Quaternized epichlorohydrin copolymer useful in treating potable Quaternized epichlorohydrin copolymer useful in treating potable

1976-03-03

1977-12-13

Anderson, Harold D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

210 54, 210 75, 260 2A, 260 2BP, 260 292EP, 2605676P, C08G 6524, C08G 6532

Patent

active

040628329

ABSTRACT:
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.

REFERENCES:
patent: 2483749 (1949-10-01), Wittcoff
patent: 3320317 (1967-05-01), Rogers et al.
patent: 3428680 (1969-02-01), Walker et al.
patent: 3544655 (1970-12-01), Booth et al.
patent: 3625684 (1971-12-01), Poot et al.
patent: 3640766 (1972-02-01), Jursich et al.
patent: 3674725 (1972-07-01), Aitken et al.
patent: 3864288 (1975-02-01), Riew et al.

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