Title:
MICROPARTICLES CONTAINING POLYHYDROXYALKANOIC ACID (PHA) AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2022/215653
Kind Code:
A1
Abstract:
The present invention provides: microparticles each of which contains 3-hydroxybutyric acid (3-HB) as a repeating unit for a polyhydroxyalkanoic acid (PHA) that is a biodegradable polymer and has a particle diameter of 0.2 μm or more and less than 10 μm; and a method for producing the microparticles. The microparticles according to the present invention are biodegradable, have excellent processability and also have biocompatibility, and therefore can be used in wide varieties of use applications including medicinal use applications.
Inventors:
INOUE KOZO (JP)
KUMAR K SUDESH (MY)
MIYAUCHI HIRONAGA (JP)
KUMAR K SUDESH (MY)
MIYAUCHI HIRONAGA (JP)
Application Number:
PCT/JP2022/016649
Publication Date:
October 13, 2022
Filing Date:
March 31, 2022
Export Citation:
Assignee:
FUENCE CO LTD (JP)
International Classes:
C08G63/06; C08J3/12; C08L67/04; C08L101/16; C12P7/62
Domestic Patent References:
| WO2018186278A1 | 2018-10-11 | |||
| WO2021059762A1 | 2021-04-01 | |||
| WO2017056908A1 | 2017-04-06 | |||
| WO2020218565A1 | 2020-10-29 | |||
| WO2017159461A1 | 2017-09-21 | |||
| WO2018178899A1 | 2018-10-04 | |||
| WO2017056908A1 | 2017-04-06 | |||
| WO2009060898A1 | 2009-05-14 |
Foreign References:
| JP2015001590A | 2015-01-05 | |||
| JP2020512365A | 2020-04-23 | |||
| JP5133478B2 | 2013-01-30 | |||
| US20060177513A1 | 2006-08-10 | |||
| US10463619B2 | 2019-11-05 | |||
| JP2013534978A | 2013-09-09 | |||
| JP2019086889A | 2019-06-06 |
Other References:
JFE TECHNO-RESEARCH CORPORATION: "FY 2016 Report on a Survey Commissioned by the Ministry of Economy, Trade and Industry; FY 2016 Report on Safety Measures for Chemical Substances", FACT-FINDING SURVEY ON DOMESTIC MICROPLASTIC EMISSION, February 2017 (2017-02-01)
"Microparticles, Microspheres, and Microcapsules for Advanced Drug Delivery", SCI. PHARM., vol. 87, 2019, pages 20
"Microparticles, Microspheres, and Microcapsules for Advanced Drug Delivery", SCI. PHARM., vol. 87, 2019, pages 20
Attorney, Agent or Firm:
HIROTA, Masanori (JP)
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