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US 5,204,452 AGranted
N-halochitosans, their preparation and uses
AssigneeE. I. Du Pont de Nemours and Company
InventorsEdward C. Dingilian, George E. Heinsohn
Life of this patent
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Abstract
A process for inducing flocculation involving the mixing of an aqueous solution of a chitosan salt with a material to be flocculated (e.g., oil, algae, or the like) and then adding a halogenating agent (e.g., sodium hypochlorite) thus forming a N-halochitosan.
Claims3
A process for flocculation, comprising the steps of:
- mixing an aqueous solution of a chitosan salt with a material to be flocculated and then adding a halogenating agent.
Dependencies are inferred from the claim text.