Cationic chlorine-resistant polymeric flocculants and their use

Details Cationic chlorine-resistant polymeric flocculants and their use Cationic chlorine-resistant polymeric flocculants and their use

1976-01-02

1978-05-09

Pertilla, Theodore E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

210 54, 252316, 260 292EP, 260 292N, 260584R, 260584B, C08G 2312, C02B 120

Patent

active

040886131

ABSTRACT:
Cationic, chlorine-resistant polymeric materials, useful as flocculants, are prepared by reacting an epihalohydrin with a mixture consisting of a lower di-alkylamine and ammonia, where the molar ratio of the amine to ammonia is from about 5:1 to about 2:1, and the ratio of the epihalohydrin to the amine-ammonia mixture is from about 0.9 up to the functional equivalency of the amine mixture, for a time and at temperature conditions such that the resultant polymeric material has a viscosity of about 50 cps to about 4000 cps (Brookfield, spindle 1, 12 rpm) at about 50% real solids content.

REFERENCES:
patent: 3493502 (1970-02-01), Coscia
patent: 3567659 (1971-03-01), Nagy
patent: 3577313 (1971-05-01), Bolger et al.
patent: 3725312 (1973-04-01), Panzer et al.
patent: 3738945 (1973-06-01), Panzer
patent: 3854970 (1974-12-01), Aitken
patent: 3855299 (1974-12-01), Witt

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