Dissolution and processing of cellulose
AssigneeConvatec Technologies Inc.
InventorsDavid Kershaw, Simon Adams
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Abstract
The invention relates to a method for dissolving the components of gel forming materials suitable for use in wound care comprising the steps of admixing said components with an ionic liquid. The ionic liquid may be selected from the group of tertiary amine N-oxides, N,N-dimethyl formamide/nitrogen tetroxide mixtures, dimethyl sulphoxide/paraformaldehyde mixtures and solutions of limium chloride in N,N-dimethyl acetamide or N-methylpyrrolidone.
Claims10
A method for dissolving the components of gel forming materials suitable for use in wound care comprising the steps of admixing said components with an ionic liquid.
A solution comprising a chemically modified cellulose in an ionic liquid.
A method for regeneration of a chemically modified cellulose comprising admixing a solution of the chemically modified cellulose in an ionic liquid with a liquid non-solvent for the chemically modified cellulose that is miscible with said ionic liquid, said admixing causing the cellulose and ionic liquid to form solid and liquid phases.
A method for electrospinning a chemically modified cellulose comprising spinning a solution of the chemically modified cellulose in an ionic liquid into a bath of a liquid non-solvent for the chemically modified cellulose that is miscible with the ionic liquid, said spinning causing the cellulose and ionic liquid to form fibres and a liquid phase.
Dependencies are inferred from the claim text.