Title:
METHOD FOR PRODUCING POLY(HYDROXYALKANOIC ACID) AND USE OF SAID POLY(HYDROXYALKANOIC ACID)
Document Type and Number:
WIPO Patent Application WO/2021/085120
Kind Code:
A1
Abstract:
A purpose of the present invention is to provide a production method by which a poly(hydroxyalkanoic acid) (PHA) (e.g., a PHA powder) can be obtained at high efficiency. This PHA production method comprises (a) the step of producing an aqueous suspension containing a PHA and a dispersant and having a pH of 7 or less and (b) the step of spray-drying the aqueous suspension produced in the step (a), wherein the dispersant is composed of a poly(ethylene oxide) (PEO) block and a hydrophobic group, the PEO block in the dispersant being made up of 20 or more repeating ethylene oxide (EO) units.
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Inventors:
FUKUMOTO ASUKA (JP)
HIRANO MASARU (JP)
HIRANO MASARU (JP)
Application Number:
PCT/JP2020/038635
Publication Date:
May 06, 2021
Filing Date:
October 13, 2020
Export Citation:
Assignee:
KANEKA CORP (JP)
International Classes:
C08J3/12; C08L67/04; C08L71/02; C08L101/16; C12P7/62
Domestic Patent References:
| WO2018117168A1 | 2018-06-28 |
Foreign References:
| JP2019097518A | 2019-06-24 | |||
| JP2003319792A | 2003-11-11 | |||
| JP2004512419A | 2004-04-22 | |||
| JP2003175092A | 2003-06-24 | |||
| JP2017530232A | 2017-10-12 | |||
| JP2010268797A | 2010-12-02 |
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
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