Patent ID: 7888412
Filing Date: 2011-02-15
Classification: C08B,C08J,C08L

Abstract:
1. A process for preparing a polymer blend, comprising: (a) admixing at least two differing polymeric materials with at least one ionic liquid, wherein the ionic liquid comprises one or more cations and one or more anions and is substantially free of a nitrogen-containing base; and wherein one of the polymeric materials is cellulose and the other is selected from the group consisting of starch, chitin, polyolefin, polyacrylonitrile, poly-2-hydroxymethylmethacrylate, poly-2-hydroxyethylmethacrylate, polyvinyl alcohol, linear polyethyleneimine, branched polyethyleneimine, polyaniline, polyethylene glycol, and polyethylene oxide with terminal amine groups; and (b) adding a non-solvent to the composition of step (a), wherein the non-solvent dissolves the ionic liquid but not the polymeric materials, thereby providing the polymer blend and a liquid phase comprising the ionic liquid.