BIODEGRADABLE COATING COMPOSITION, METHOD FOR MANUFACTURING SAME, AND BIODEGRADABLE ARTICLE USING SAME

WIPO Patent Application WO/2023/008960

A1

The present invention relates to a biodegradable coating composition, a method for manufacturing same, and a biodegradable article using same. Specifically, according to one embodiment of the present invention, the biodegradable coating composition is a copolymerized polyhydroxyalkanoate resin that comprises a polyhydroxyalkanoate (PHA) resin and a dispersant having a degree of saponification of at least 42 mol%, and comprises 4-hydroxybutyrate (4-HB) repeating units. Due to including 0.1 wt% to 60 wt% of the 4-hydroxybutyrate (4-HB) repeating units with respect to the total weight of the copolymerized polyhydroxyalkanoate resin, the biodegradable coating composition has excellent biodegradability and biocompatibility and can thus improve dispersibility, coating properties, water resistance, and processability while being environmentally friendly.

JP3100171	INDUSTRIAL APPLICABILITY: A coating material consisting of a bioabsorbable copolymer, a sterile surgical article made from the bioabsorbable copolymer, and a bioabsorbable copolymer.
JP3821886	HARDENABLE COATING COMPOSITION HAVING CARBONATE-CONTAINING COMPONENT
WO/2012/120199	HEAT SEALABLE BIODEGRADABLE PACKAGING MATERIAL, ITS MANUFACTURING METHOD AND A PRODUCT PACKAGE MADE THEREFROM

PARK SOYUN (KR)
SHIM YOO-KYOUNG (KR)
PARK JEUNG YIL (KR)
CHUNG JIN SU (KR)

PCT/KR2022/011219

February 02, 2023

July 29, 2022

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CJ CHEILJEDANG CORP (KR)

C09D167/04; C09D5/00; C09D7/40; C09D7/63

KR20120107917A	2012-10-04
KR20210044812A	2021-04-23
JP2015129253A	2015-07-16
KR20180081963A	2018-07-18
KR20060048025A	2006-05-18
KR102399861B1	2022-05-19
KR20120103158A	2012-09-19

FIRSTLAW P.C. (KR)

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