Poly(vinyl phosphonomethylene amino carboxylates) and process fo

Details Poly(vinyl phosphonomethylene amino carboxylates) and process fo Poly(vinyl phosphonomethylene amino carboxylates) and process fo

1979-03-02

1981-01-06

Lee, Mary C.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2602393R, 26032625, 2603261, 260429R, 2604297, 2604299, 260439R, 2605025, 546 6, 546 22, C07D40114, C07D40314

Patent

active

042435919

ABSTRACT:
Poly(vinyl phosphonomethylene amino carboxylates) having at least one N-C-P linkage and at least one carboxyl end group per molecule are prepared by reacting a polyvinyl cyclic amide, orthophosphorous acid and formaldehyde in an aqueous acidic mixture at a temperature in excess of about 70.degree. C. The resulting polymeric compounds are useful as metal complexing agents and in water treating to inhibit scale formation and corrosion of metals by oxygen-containing waters.

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