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AssigneeNorth Carolina State University
InventorsDimitris Argyropoulos, Haibo Xie
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The present invention provides wood derivatives and composite materials prepared by first solvating a lignocellulosic material using an ionic liquid. The solvated lignocellulosic material can be derivatized to incorporate functional groups, particularly groups that facilitate later combination with polymer materials, including non-polymer polymers. The polymeric materials can be combined with the derivatized lignocellulosic material in solution, or the derivatized lignocellulosic material can be isolated and later combined with the polymeric material in a melt. The invention encompasses a variety of wood derivatives, composites, and nanocomposites useful for preparing multiple types of products, including membranes, fibers, and formed parts.
A composite material comprising an ionic liquid solvated lignocellulosic material in combination with a further polymeric component.
A derivatized lignocellulosic material, comprising a lignocellulosic material that has been chemically derivatized such that one or more naturally occurring hydroxyl moiety present in the lignocellulosic material has been replaced with a different, derivatizing chemical moiety.
A method of preparing a composite material comprising dissolving a lignocellulosic material in an ionic liquid to form a solution and combining the solvated lignocellulosic material with a further polymeric component.
A method of preparing a derivatized lignocellulosic material comprising dissolving a lignocellulosic material in an ionic liquid to form a solution and combining the solvated lignocellulosic material with a derivatizing chemical moiety to replace one or more naturally occurring hydroxyl moiety present in the lignocellulosic material with the different, derivatizing moiety.
Dependencies are inferred from the claim text.