Title:
COPOLYESTER COMPRISING 3-HYDROXYBUTYRIC ACID AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2024/029491
Kind Code:
A1
Abstract:
The present invention provides a copolyester comprising 3-hydroxybutyric acid and exhibiting high biodegradability, and a method for producing said copolyester. A copolyester according to the present invention is a copolyester of 3-hydroxybutyric acid (3HB) and hydroxyalkanoic acid (HA), the copolyester having structural units (3HB-U) derived from 3-hydroxybutyric acid (3HB) and structural units (HA-U) derived from hydroxyalkanoic acid (HA). The content of the structural units (3HB-U) derived from 3-hydroxybutyric acid (3HB) is 1 to 40 mol% relative to 100 mol of all the structural units of the copolyester, and the average chain length of the structural units (3HB-U) derived from 3-hydroxybutyric acid (3HB) in the copolyester is 2 to 20.
Inventors:
INAGAKI SHO (JP)
TAKANO AKIRA (JP)
KAI HIDETOMO (JP)
NAKAYAMA ATSUYOSHI (JP)
KAWASAKI NORIOKI (JP)
YAMANO NAOKO (JP)
TAKANO AKIRA (JP)
KAI HIDETOMO (JP)
NAKAYAMA ATSUYOSHI (JP)
KAWASAKI NORIOKI (JP)
YAMANO NAOKO (JP)
Application Number:
PCT/JP2023/027951
Publication Date:
February 08, 2024
Filing Date:
July 31, 2023
Export Citation:
Assignee:
DAINIPPON INK & CHEMICALS (JP)
AIST (JP)
AIST (JP)
International Classes:
C08L67/04; C08G63/06; C08L101/16
Foreign References:
| JP2018109103A | 2018-07-12 | |||
| US20170044326A1 | 2017-02-16 | |||
| JP2005501927A | 2005-01-20 | |||
| JP2009500468A | 2009-01-08 | |||
| JP2001002763A | 2001-01-09 | |||
| JP2004137490A | 2004-05-13 | |||
| JP2005533148A | 2005-11-04 | |||
| CN104448258A | 2015-03-25 | |||
| US20210077667A1 | 2021-03-18 |
Attorney, Agent or Firm:
NISHIZAWA Kazuyoshi et al. (JP)
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