Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
Process for preparing a homogeneous cellulose solution using N-methylmorpholine-N-oxide
 A simple method of preparing a homogeneous cellulose solution is disclosed, which comprises the steps of (a) preparing fibrillar cellulose powder; (b) injecting a molten liquid tertiary amine oxide solvent into a twin screw extruder; (c) feeding the cellulose powder of step (a) into a section of the twin screw extruder where the molten liquid tertiary amine oxide solvent fed in step (b) produces a well swollen paste with the cellulose powder fed in step (c); (d) dissolving the well swollen cellulose paste in the following melting sections in the twin screw extruder; and (e) stabilizing the solution obtained in step (d) in a storage tank. 
Hanil Synthetic Fiber Co., Ltd. Korea Institute of Science and Technology
D C
D01F C08B
inventional inventional
Young Se Seong Mu Seong Joo Jong Su Young Geun Byoung Chul Wha Seop Seung Lak
Oh Jo Lee Park Park Kim Lee Lee