Solvents for and purification of chitin
AssigneeUniversity of Delaware
InventorPaul R. Austin
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Abstract
New solvents for chitin comprising dimethylacetamide, N-methylpyrrolidone or mixtures of these in combination with a minor proportion of lithium chloride, and their use in the purification of chitin for regeneration in the form of films and fibers are described.
Claims2
A process for forming films and fibers from chitin that is insoluble in dilute acids which comprises dissolving of said chitin in a solvent consisting of at least 2% lithium chloride in dimethylacetamide or N-methylpyrrolidone or mixtures thereof, casting the solution in the form of a film or fiber, removing the solvent by evaporation or by immersion in a non-solvent followed by washing in water and then drying said film or fiber.
Dependencies are inferred from the claim text.