Poly-β-carboxyacrylamide polymer, use thereof and...

Details Poly-β-carboxyacrylamide polymer, use thereof and... Poly-β-carboxyacrylamide polymer, use thereof and...

2002-03-27

2008-03-11

Barry, Chester T. (Department: 1724)

Liquid purification or separation

Processes

Ion exchange or selective sorption

Reexamination Certificate

active

07341666

ABSTRACT:
A poly-β-carboxyacrylamide polymer of formula (I) wherein X is an alkaline metal or a substituent capable of bringing about an exchange reaction with a salt of an alkaline earth metal, said polymer having a ponderal average molecular weight greater than or equal to 2,000. The use of said polymer and process for preparing the same

REFERENCES:
patent: 0 108 909 (1984-05-01), None
patent: 0 802 177 (1997-10-01), None
patent: WO 00/71603 (2000-11-01), None

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