A POLYESTER RESIN, A HOLLOW MOLDED BODY FORMED THEREFROM, AND A PRODUCTION METHOD THEREFOR
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Nov 16, 2023
app pub date -
Sep 2, 2021
filing date -
Sep 2, 2021
priority date (Note) -
Published
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Abstract
The present invention provides a polyester resin and a hollow molded body containing reduced amounts of cyclic trimer and aluminum-based foreign matter, with maintained catalytic activity and a reduced catalyst cost. A polyester resin, comprising an aluminum compound and a phosphorus compound, and satisfying the following (1) to (3): (1) a content of aluminum element in the polyester resin is 9 to 19 ppm by mass, (2) a content of phosphorus element in the polyester resin is 22 to 40 ppm by mass. and (3) a mole ratio of phosphorus element to aluminum element in the polyester resin is 1.55 or more and 1.85 or less.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
TOYOBO CO LTD | KITA-KU OSAKA-SHI OSAKA 530-0001 |
International Classification(s)

- 2021 Application Filing Year
- C08G Class
- 2313 Applications Filed
- 680 Patents Issued To-Date
- 29.40 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
KANETAKA, Shinya | Osaka, JP | 4 | 0 |
# of filed Patents : 4 Total Citations : 0 | |||
NAKAGAWA, Satoru | Fukui, JP | 28 | 169 |
# of filed Patents : 28 Total Citations : 169 | |||
UOTANI, Kosuke | Fukui, JP | 7 | 5 |
# of filed Patents : 7 Total Citations : 5 |
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Patent Citation Ranking
- 0 Citation Count
- C08G Class
- 0 % this patent is cited more than
- 2 Age
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