1,4-BUTANEDIOL, METHOD OF PRODUCING POLYESTER USING THE 1,4-BUTANEDIOL AND METHOD OF STORING THE 1,4-BUTANEDIOL

摘要

PROBLEM TO BE SOLVED: To provide polyester with excellent color tone by 1,4-butanediol with little quality deterioration.SOLUTION: The present invention provides polybutylene terephthalate with excellent color tone by 1,4-butanediol comprising 1 wt.ppm or more of 2-methyl-1,3-propanediol and comprising 1-50 wt.ppm of a cyclic acetal compound.