Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...
Patent
1994-05-20
1997-07-01
Reddick, Judy M.
Liquid purification or separation
Processes
Making an insoluble substance or accreting suspended...
210700, 210708, 210725, 210727, 210728, B01D 2101
Patent
active
056434626
ABSTRACT:
Tannin containing polymers, their method of production and methods of using as water treatment agents are disclosed. The tannin containing polymers comprise copolymers of tannin and a cationic monomer. Another embodiment comprises tannin containing polymers of tannin, cationic monomer and at least one monomer selected from the group consisting of an anionic monomer and a nonionic monomer.
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Chen Fu
Chen Jen-Chi
Vasconcellos Stephen R.
Walterick, Jr. Gerald C.
BetzDearborn Inc.
Reddick Judy M.
Ricci Alexander D.
Von Neida Philip H.
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