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US 5,672,634 AGranted
Crosslinked PVP-I2 foam product
AssigneeISP Investments Inc.
InventorsSusan Y. Tseng, Philip F. Wolf
Life of this patent
Estimating the term…
Abstract
A crosslinked PVP-I.sub.2 foam product, useful as an iodophor, contains about 0.1-2% crosslinker and about 16-18% total inorganic iodine.
Claims4
A process of making a crosslinked PVP-I.sub.2 foam product which comprises forming a shaped crosslinked PVP polymer hydrogel substantially free of residual monomer and non-crosslinked PVP, conditioning the hydrogel with moisture and acid, and then reacting the conditioned polymer with iodine crystals.
Dependencies are inferred from the claim text.