Membrane filtration of polymer containing solutions

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United States of America Patent

PATENT NO 6162340
SERIAL NO

09139791

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Abstract

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In a method for recovering polymers in a substantially pure form from a solution containing the polymers, the solution is first treated with a reactant (e.g. an acid, a sequestrant or a mixture of both) to form the free polymers and salts of the reactant. Second, the solution is treated to remove the salts therefrom and in a final stage the polymer solution is concentrated and the polymers recovered. The second treatment step may consist of membrane-filtration, ion-exchange or electrodialysis.

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Patent Owner(s)

Patent OwnerAddress
ALBRIGHT & WILSON UK LIMITEDWEST MIDLANDS

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Zakikhani, Mohsen Birmingham, GB 12 89

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