Far Eastern New Century Corporation

Hsin-Hui Cheng

Der-Ren Hwang

Cheng-Ting Wang

Chih-Chien Lin

A stabilizer for producing a polyester resin comprises a phosphate ester composition which includes a phosphate ester compound having Formula (I), wherein and 

Stabilizer for producing a polyester resin, process for preparing the same, process for producing the polyester resin using the same, and the polyester resin produced thereby

A method for preparing a stabilizer containing phosphate ester, including following steps: (1) distributing a compound containing phosphorous and oxide in polar aprotic solvent to obtain a mixture; (2) adding bis(2-hydroxyethyl) terephthalate (BHET) into the mixture to carry out a reaction so as to obtain a solution; and (3) hydrolyzing the solution to obtain a stabilizer containing phosphate ester, where the stabilizer includes compounds represented by the following formulas (I) and (II): where X, Xand Xare independently selected from the moiety represented by following formula (III), and Rand Rare independently selected from one of the linear or branched alkylene radicals comprising 2 to 4 carbon atoms The method yields a phosphate ester containing a phosphate monoester and a phosphate diester of a high content and only a minor amount of phosphoric acid in the absence of phosphate triester without the step of extraction.

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Taipei, Taiwan

Hsin-Hui Cheng