Method of making polymers containing hydroxamate functional grou

Details Method of making polymers containing hydroxamate functional grou Method of making polymers containing hydroxamate functional grou

1997-07-01

1998-12-08

Zitomer, Fred

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

5253297, 5253301, 5253303, 5253305, 525384, C08F 832, C08F 814

Patent

active

058470565

ABSTRACT:
A process is disclosed for the formation of highly anionic hydroxamic acid polymers whereby (meth) acrylic acid polymers are esterified in aqueous solution to poly (meth) acrylates. The resultant polymers are then reacted with an hydroxylamine to produce hydroxamated (meth) acrylic acid containing polymers. The esterified polymers, their hydroxamated derivatives and their use to flocculate Bayer Process streams are also disclosed.

REFERENCES:
patent: 4874539 (1989-10-01), Huffman
patent: 5395897 (1995-03-01), Hurlock et al.
patent: 5405898 (1995-04-01), Sommese

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