Title:
POLYESTER RESIN, BLOW-MOLDED OBJECT THEREFROM, AND PRODUCTION METHODS THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/059511
Kind Code:
A1
Abstract:
A polyester resin reduced in the contents of a cyclic trimer and an aluminum-based foreign matter and a blow-molded object are provided, with maintained catalytic activity and a reduced catalyst cost. The polyester resin contains an aluminum compound and a phosphorus compound and is characterized by satisfying the following (1) to (3). (1) To have an aluminum element content of 9-19 mass ppm (2) To have a phosphorus element content of 22-40 mass ppm (3) To have a molar ratio of phosphorus element to aluminum element of 1.55-1.85
Inventors:
NAKAGAWA SATORU (JP)
UOTANI KOSUKE (JP)
KANETAKA SHINYA (JP)
UOTANI KOSUKE (JP)
KANETAKA SHINYA (JP)
Application Number:
PCT/JP2021/032359
Publication Date:
March 24, 2022
Filing Date:
September 02, 2021
Export Citation:
Assignee:
TOYO BOSEKI (JP)
International Classes:
B65D1/00; C08G63/00; C08G63/80; C08G63/84
Domestic Patent References:
| WO2002057335A1 | 2002-07-25 | |||
| WO2017183550A1 | 2017-10-26 | |||
| WO2021125137A1 | 2021-06-24 | |||
| WO2007032325A1 | 2007-03-22 |
Foreign References:
| JP2009503177A | 2009-01-29 | |||
| JP2003212982A | 2003-07-30 | |||
| JP2012076457A | 2012-04-19 | |||
| CN101029126A | 2007-09-05 | |||
| JP2006169432A | 2006-06-29 | |||
| JP2020156455A | 2020-10-01 |
Attorney, Agent or Firm:
USFI PATENT ATTORNEYS INTERNATIONAL OFFICE (JP)
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