公开(公告)号：US09556307B2

公开(公告)日：2017-01-31

申请号：US14560800

申请日：2014-12-04

Applicant: MITSUBISHI CHEMICAL CORPORATION ,  GENOMATICA, INC.

Inventor： Masaru Utsunomiya ,  Yusuke Izawa ,  Norikazu Konishi ,  Shinichiro Matsuzono ,  Takayuki Suzuki ,  Michael Japs ,  Mark Burk ,  Warren Clark

IPC: C12P7/62 ,  C08G63/00 ,  C08G63/80 ,  C08G63/183 ,  C08G63/78 ,  C12P7/18 ,  C12N9/04 ,  C12N9/02 ,  C12N9/00

CPC classification number: C08G63/80 ,  C08G63/183 ,  C08G63/78 ,  C12N9/0006 ,  C12N9/0008 ,  C12N9/93 ,  C12P7/18 ,  C12Y101/01061 ,  C12Y102/01024 ,  C12Y102/04002 ,  C12Y602/01004 ,  Y02P20/52

Abstract: The present invention aims to provide a method for producing polybutylene terephthalate (PBT) with an excellent color using biomass-derived 1,4-butanediol (BG). The invention relates to a method for producing PBT comprising a step of subjecting a diol component containing raw material 1,4-BG having a nitrogen content of 0.01 to 50 ppm by mass and a dicarboxylic acid component to esterification or ester-exchange reaction, and a polycondensation reaction step for obtaining PBT from the reactant, wherein the content of gamma butyrolactone in the raw material 1,4-BG is 1 to 100 ppm by mass.

Abstract translation: 本发明的目的在于提供使用生物质衍生的1,4-丁二醇（BG）制造具有优异颜色的聚对苯二甲酸丁二醇酯（PBT）的方法。 本发明涉及一种制备PBT的方法，包括将含有0.01〜50质量ppm的氮含量的原料1,4-BG的二醇成分和二羧酸成分进行酯化或酯交换反应的工序，以及 用于从反应物中获得PBT的缩聚反应步骤，其中原料1,4-BG中的γ-丁内酯的含量为1〜100质量ppm。

公开(公告)号：US10450404B2

公开(公告)日：2019-10-22

申请号：US14560830

申请日：2014-12-04

Applicant: MITSUBISHI CHEMICAL CORPORATION ,  GENOMATICA, INC.

Inventor： Masaru Utsunomiya ,  Yusuke Izawa ,  Norikazu Konishi ,  Kota Tanaka ,  Shinichiro Matsuzono ,  Takayuki Suzuki ,  Michael Japs ,  Mark Burk ,  Warren Clark

IPC: C08G18/42 ,  C08G63/16 ,  C08G63/183 ,  C08G18/66 ,  C12P7/18

Abstract: At the time of producing a polyester by using a dicarboxylic acid component and a biomass-resource-derived diol as raw materials, a polyester is efficiently produced with good color tone, as the raw material diol derived from biomass resources, a diol in which the content of a cyclic carbonyl compound having a carbon atom number of 5 or 6 is from 0.01 to 12 ppm by mass, is used, and by controlling the content of a cyclic carbonyl compound having a carbon atom number of 5 or 6 in the raw material diol to fall in a prescribed range, the color tone of the polyester is improved.