All-aromatic polyester compound, its preparation, and composition containing the same

摘要

The present invention relates to all-aromatic polyesters, a method for preparing the same, and a polyester composition containing the same. The present method is carried out in two stages of first carrying out a prepolymerization to obtain a prepolymer having a specific particle size distribution, then carrying out a solid polymerization. The present method can control the quality of polyester effectively and produce all-aromatic polyester exhibiting excellent flowability, high heat resistance, and high solder heat resistance.