METHOD FOR PRODUCING LIQUID-CRYSTALLINE POLYESTER

摘要

The present invention provides a method for producing a liquid-crystalline polyester, the method comprising: a step of melt-polymerizing raw monomers in a melt polymerization vessel to obtain a polymer melt; a step of drawing the polymer melt from the melt polymerization vessel and granulating the polymer melt to obtain a granulate; a step of allowing the granulate to undergo solid phase polymerization in a solid phase polymerization vessel to obtain a solid phase polymer; and a step of making an impact on the solid phase polymerization vessel containing the solid phase polymer, and taking out the solid phase polymer from the solid phase polymerization vessel.