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US 2001/0041756 A1Published application
Process for producing cross-linked polyallylamine hydrochloride
AssigneeAbbott Laboratories
InventorsRussell C. Klix, Jufang H. Barkalow, William T. Monte
Life of this patent
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Abstract
The present invention relates to a process for preparing a cross-linked pollyallylamine hydrochloride. The process involves mixing polyallylamine hydrochloride, water, a hydroxide or alkoxide, and a water-miscible organic solvent or co-solvents, to a reaction mixture and adding a cross-linking agent to the reaction mixture to form a cross-linked polyallylamine.
Claims16
A solution process for producing a cross-linked polyallylamine or a salt form thereof, the process comprising the steps of.
- a). mixing polyallylamine, water, a hydroxide or alkoxide, and a water-miscible organic solvent or co-solvent;
- and
- b). adding a cross-linking agent to form a cross-linked polyallylamine.
Dependencies are inferred from the claim text.