Title:
POLYBUTYLENE TEREPHTHALATE RESIN
Document Type and Number:
WIPO Patent Application WO/2017/183550
Kind Code:
A1
Abstract:
The present invention is a polybutylene terephthalate resin which contains, as polymerization catalyst components, an aluminum compound and a phosphorus compound and has an intrinsic viscosity of 0.5-1.3 dL/g, and which generates 50 ppm or less of tetrahydrofuran and 10 ppm or less of 1, 4-butanediol when heated at 265°C for 10 minutes in an inert gas atmosphere. This polybutylene terephthalate resin is able to reduce the amounts of tetrahydrofuran and 1, 4-butanediol to be generated during molding, while having excellent thermal stability, color tone, hydrolysis resistance and transparency.
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Inventors:
MINAMI SOICHIRO (JP)
HIRONAKA NOBUYUKI (JP)
OHASHI HIDETO (JP)
HIRONAKA NOBUYUKI (JP)
OHASHI HIDETO (JP)
Application Number:
PCT/JP2017/015096
Publication Date:
October 26, 2017
Filing Date:
April 13, 2017
Export Citation:
Assignee:
TOYO BOSEKI (JP)
International Classes:
C08G63/84; C08G63/183; C08G63/87
Domestic Patent References:
| WO2005075539A1 | 2005-08-18 |
Foreign References:
| JP2005112873A | 2005-04-28 | |||
| JP2002363274A | 2002-12-18 | |||
| JP2002322254A | 2002-11-08 | |||
| JP2002241481A | 2002-08-28 | |||
| JP2006282800A | 2006-10-19 | |||
| JP2008081576A | 2008-04-10 |
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