| 摘要 |
A wholly aromatic polyester which is essentially free of charred material, has good color and good thermal stability, comprises recurring units derived from the reaction of: a. an aromatic dicarboxylic acid component; b. a hydroxy aromatic carboxylic acid component; and c. an aromatic dihydroxy component; wherein from about 0 to about 100 ppm magnesium is used as the reaction catalyst and from 0 to about 0.1 percent, by weight, based on the weight of the polyester, of a phosphite is used as a stabilizer; and wherein the monomers used to prepare the wholly aromatic polyester have a total ash content of no more than 50 ppm and a total potassium content of no more than 20 ppm. |
