Title:
CHEMICALLY RECYCLED POLYETHYLENE TEREPHTHALATE RESIN, MOLDED BODY OF SAME, AND METHOD FOR PRODUCING CHEMICALLY RECYCLED POLYETHYLENE TEREPHTHALATE RESIN
Document Type and Number:
WIPO Patent Application WO/2024/038882
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a chemically recycled polyethylene terephthalate resin which has high thermal stability and high melting point. A chemically recycled polyethylene terephthalate resin according to the present invention is characterized by satisfying the requirements (1) to (3) described below. (1) The amount of a diethylene glycol component relative to 100% by mole of all polyhydric alcohol components in the chemically recycled polyethylene terephthalate resin is less than 1.9% by mole.
(2) The amount of an ethylene glycol component relative to 100% by mole of all polyhydric alcohol components in the chemically recycled polyethylene terephthalate resin is 97.5% by mole to 99.3% by mole.
(3) The amount of a terephthalic acid component relative to 100% by mole of all polyvalent carboxylic acid components in the chemically recycled polyethylene terephthalate resin is 98.0% by mole to 99.98% by mole.
Inventors:
YAMAMOTO YU (JP)
SASAI TAMAYO (JP)
KINAMI MAKI (JP)
SHIBANO HIROSHI (JP)
SASAI TAMAYO (JP)
KINAMI MAKI (JP)
SHIBANO HIROSHI (JP)
Application Number:
PCT/JP2023/029642
Publication Date:
February 22, 2024
Filing Date:
August 16, 2023
Export Citation:
Assignee:
TOYO BOSEKI (JP)
International Classes:
C08G63/183; C08G63/78; C08G63/87; C08J11/24
Domestic Patent References:
| WO2005075539A1 | 2005-08-18 |
Foreign References:
| JP2003160654A | 2003-06-03 | |||
| JP2006016548A | 2006-01-19 | |||
| JP2003147062A | 2003-05-21 | |||
| JP2021187452A | 2021-12-13 |
Attorney, Agent or Firm:
USFI PATENT ATTORNEYS INTERNATIONAL OFFICE (JP)
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