| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for preparing cyclic polyarylene sulfide and polyarylene sulfide with a low metal content. <P>SOLUTION: When solid-liquid separation is carried out after removing water by distillation from a mixture containing at least cyclic polyarylene sulfide, a polyarylene sulfide, alkali metal halide, water and an organic polar solvent, the alkali metal halide can be removed from the mixture by a general-purpose apparatus, and the cyclic polyarylene sulfide and the polyarylene sulfide with a low metal content can be collected. <P>COPYRIGHT: (C)2010,JPO&INPIT |
