Process for the preparation of a hydrogel which is largely free from monomers

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United States of America Patent

PATENT NO 4794166
SERIAL NO

07077803

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A polymer hydrogel substantially free from monomers and oligomers is prepared by contacting a previously prepared polymer hydrogel with a single-phase mixture of water and a solvent and then separating the mixture of water and solvent from the hydrogel.

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Patent Owner(s)

Patent OwnerAddress
CASSELLA AKTIENGESELLSCHAFT FRANKFURT (MAIN)-FECHENHEIM GERMANY A COMPANY OF GERMANYNot Provided

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Donges, Reinhard Bad Soden, DE 13 179
Engelhardt, Friedrich Frankfurt, DE 52 1102
Hilbig, Josef Taunusstein, DE 6 88
Schrod, Manfred Weiterstadt, DE 7 65
Ziegelmayer, Manfred Bischofsheim, DE 6 64

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