Title:
BIODEGRADABLE POLYESTER RESIN COMPOSITION, METHOD FOR PREPARING SAME, AND BIODEGRADABLE MOLDED ARTICLE COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2023/229235
Kind Code:
A1
Abstract:
Provided in an embodiment is a biodegradable polyester resin composition, which comprises a polyester resin containing: a diol; an aromatic dicarboxylic acid; and an aliphatic dicarboxylic acid, and has a biodegradation degree per aliphatic carboxylic acid of 1.7 or more, wherein the biodegradation degree per aliphatic dicarboxylic acid is a value obtained by dividing the biodegradation degree after 9 weeks by a ratio of the aliphatic dicarboxylic acid to all the dicarboxylic acids, the biodegradation degree after 9 weeks being 85% or more.
Inventors:
KIM SEONG DONG (KR)
KIM KYUNG YOUN (KR)
JUNG JOO YOUNG (KR)
RYU JI YEON (KR)
KIM HOON (KR)
BYEON JUN SU (KR)
JOENG EUN SUN (KR)
KIM KYUNG YOUN (KR)
JUNG JOO YOUNG (KR)
RYU JI YEON (KR)
KIM HOON (KR)
BYEON JUN SU (KR)
JOENG EUN SUN (KR)
Application Number:
PCT/KR2023/005506
Publication Date:
November 30, 2023
Filing Date:
April 21, 2023
Export Citation:
Assignee:
ECOVANCE CO LTD (KR)
International Classes:
C08L67/02; C08G63/16; C08G63/78; C08K3/02; C08K5/5419; C08K5/5435; C08L83/04
Foreign References:
| KR20190110192A | 2019-09-30 | |||
| JP2009030206A | 2009-02-12 | |||
| JP2002363291A | 2002-12-18 | |||
| JP2002293901A | 2002-10-09 | |||
| JP2019043991A | 2019-03-22 |
Attorney, Agent or Firm:
KIM, Kyu Hun (KR)
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