PRODUCTION METHOD FOR POLYBUTYLENE TEREPHTHALATE

Title:

PRODUCTION METHOD FOR POLYBUTYLENE TEREPHTHALATE

Document Type and Number:

WIPO Patent Application WO/2013/183590

Kind Code:

A1

Abstract:

The purpose of the present invention is to provide a production method for polybutylene terephthalate (PBT) having good color tones, said method using a biological resource-derived 1, 4-butanediol (BG). This production method for PBT has: a step in which a dicarboxylic acid component and a diol component including a raw material 1, 4-BG having a nitrogen atom content of 0.01-50 ppm by mass are esterized or transesterified; and a polycondensation step in which PBT is obtained from the reaction product. The gamma-butyrolactone content in the raw material 1, 4-BG is 1-100 ppm by mass.

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Inventors:

UTSUNOMIYA MASARU (JP)
IZAWA YUSUKE (JP)
KONISHI NORIKAZU (JP)
MATSUZONO SHINICHIRO (JP)
SUZUKI TAKAYUKI (JP)
JAPS MICHAEL (US)
BURK MARK (US)
CLARK WARREN (US)

Application Number:

PCT/JP2013/065365

Publication Date:

December 12, 2013

Filing Date:

June 03, 2013

Export Citation:

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Assignee:

MITSUBISHI CHEM CORP (JP)
GENOMATICA INC (US)

International Classes:

C08G63/78; C08G63/183; C12P7/18

Domestic Patent References:

WO2013005749A1	2013-01-10
WO2007089653A2	2007-08-09

Foreign References:

US20120046427A1	2012-02-23
JP2006328380A	2006-12-07
JP2008101143A	2008-05-01
JPH11240846A	1999-09-07
JP2009077719A	2009-04-16
JP2010521182A	2010-06-24
US20110003355A1	2011-01-06

Other References: