Title:
POLYESTER RESIN COMPOSITION, METHOD FOR MANUFACTURING SAME, AND POLYESTER FILM USING SAME
Document Type and Number:
WIPO Patent Application WO/2022/054670
Kind Code:
A1
Abstract:
Provided is a polyester resin composition whereby catalyst cost is reduced even when a polymerization catalyst comprising an aluminum compound and a phosphorus compound is used, and there is little foreign matter in the polyester resin composition. A polyester resin composition including a polyester resin and insoluble particles which are particles that are insoluble in the polyester resin, the polyester resin composition being characterized in that the polyester resin includes an aluminum compound and a phosphorus compound, and the polyester resin composition satisfies (1) through (4). (1): The content ratio of elemental aluminum in the polyester resin composition is 9-19 mass ppm. (2): The content ratio of elemental phosphorus in the polyester resin composition is 13-31 mass ppm. (3): The mole ratio of elemental phosphorus to elemental aluminum in the polyester resin composition is 1.32-1.80. (4): The content ratio of the insoluble particles in the polyester resin composition is 500-2000 mass ppm.
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Inventors:
NAKAGAWA SATORU (JP)
UOTANI KOSUKE (JP)
KANETAKA SHINYA (JP)
UOTANI KOSUKE (JP)
KANETAKA SHINYA (JP)
Application Number:
PCT/JP2021/032139
Publication Date:
March 17, 2022
Filing Date:
September 01, 2021
Export Citation:
Assignee:
TOYO BOSEKI (JP)
International Classes:
C08L67/00; C08G63/84; C08K3/36
Domestic Patent References:
| WO2002057335A1 | 2002-07-25 | |||
| WO2017183550A1 | 2017-10-26 | |||
| WO2021125137A1 | 2021-06-24 |
Foreign References:
| JP2009503177A | 2009-01-29 | |||
| JP2003212982A | 2003-07-30 | |||
| JP2012076457A | 2012-04-19 | |||
| CN101029126A | 2007-09-05 |
Attorney, Agent or Firm:
USFI PATENT ATTORNEYS INTERNATIONAL OFFICE (JP)
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