发明名称 |
METHOD FOR PRODUCING POLYBUTYLENE TEREPHTHALATE |
摘要 |
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. |
申请公布号 |
SG11201408099V(A) |
申请公布日期 |
2015.01.29 |
申请号 |
SG11201408099V |
申请日期 |
2013.06.03 |
申请人 |
MITSUBISHI CHEMICAL CORPORATION;GENOMATICA, INC. |
发明人 |
UTSUNOMIYA MASARU;IZAWA YUSUKE;KONISHI NORIKAZU;MATSUZONO SHINICHIRO;SUZUKI TAKAYUKI;JAPS MICHAEL;BURK MARK;CLARK WARREN |
分类号 |
C08G63/78;C08G63/183;C12P7/18 |
主分类号 |
C08G63/78 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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