FLAME-RETARDANT POLYESTER RESIN HAVING EXCELLENT DYEABILITY AND SHRINKAGE TOGETHER WITH GOOD POLYMERIZATION AND SPINNING PROPERTY, AND A MANUFACTURING METHOD THEREOF

摘要

PURPOSE: A manufacturing method of flame-retardant polyester resin is provided to provide have dyeability to cation dye, to have excellent flame retardance together with excellent shrinkage, thereby using for manufacturing polyester fiber.;CONSTITUTION: A flame-retardant polyester resin is manufactured by polycondensation of terephthalic acid or ester-formable derivative thereof, and diol components under the presence of thermal stabilizer. The manufacturing method of polyester resin comprises: a step of adding 4.0-8.0 weight% of dicarboxylic acid in chemical formula 1having sulfonate group into an organic unit; a step of adding 1.0-4.0 weight% of polyalkylene glycol with the molecular weight of 400-6000 based on total diol components; and a step of adding a compound in chemical formula 2 in order to contain 1,000-10,000 ppm of phosphorus based on the weight of polyester resin.;COPYRIGHT KIPO 2012