| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a purified cellulose fiber production process which can produce a regenerated cellulose fiber having the same level of strength as that of rayon using an ionic liquid having high thermal stability without producing any by-product having a high environmental load. <P>SOLUTION: In the purified cellulose fiber production process, a cellulose raw material is dissolved in a solution comprising an ionic liquid having an anion moiety represented by formula (A1) or (A2) and spun [in formula, R<SP POS="POST">11</SP>, R<SP POS="POST">12</SP>and R<SP POS="POST">13</SP>respectively and independently represent an alkyl group, and R<SP POS="POST">14</SP>represents a hydrogen atom or an alkyl group]. <P>COPYRIGHT: (C)2012,JPO&INPIT |
