| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a cleaning composition for effectively cleaning not merely the remaining liquid crystalline polyester on an inner wall of a polycondensation tank but also droplets of the liquid crystalline polyester or the raw material monomers adhering to and remaining in the dephlegmator in a liquid crystalline polyester production device, and to provide a cleaning method using the composition. <P>SOLUTION: The composition is formed by mixing glycols, amines and a compound selected from the group consisting of cyclic esters, amides and sulfoxides with one another, wherein the content of the amines is 5 to 40 mass% and the content of the compound selected from the group consisting of cyclic esters, amides and sulfoxides is 5 to 30 mass%. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
