Inventors:
Richard G. Tonkyn - Cornwells Heights PA
Norman Vorchheimer - Buckingham PA
Assignee:
Betz Laboratories, Inc. - Trevose PA
International Classification:
C08G 2312
C02B 120
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.