CLEANING COMPOSITION AND CLEANING METHOD FOR LIQUID CRYSTALLINE POLYESTER PRODUCTION DEVICE USING THE SAME

摘要

PURPOSE: A cleaning composition, and a cleaning method of a manufacturing device for liquid crystalline polyester using thereof are provided to effectively clean liquid crystalline polyester sprays or a raw material monomer remain on a sprayer. CONSTITUTION: A cleaning composition contains glycols, 5~40wt% of amines, and 5~30wt% of compound selected from the group consisting of cyclic esters, amides, and sulfoxides. A cleaning method of a manufacturing device for liquid crystalline polyester using the cleaning composition comprises the following steps: discharging the liquid crystalline polyester from the manufacturing device; producing the cleaning composition; inserting the cleaning composition to the device; and circulating the cleaning composition inside the device to clean the inside of the device.