Invention Grant
- Patent Title: Acetylated lactide oligomer-based plasticizer, method of preparing same and PLA resin composition containing same
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Application No.: US16811903Application Date: 2020-03-06
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Publication No.: US11332598B2Publication Date: 2022-05-17
- Inventor: Jihoon Shin , Haemin Jeong , Nam-Kyun Kim , Young-Wun Kim
- Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
- Applicant Address: KR Daejeon
- Assignee: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
- Current Assignee: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
- Current Assignee Address: KR Daejeon
- Agency: Lewis Roca Rothgerber Christie LLP
- Priority: KR10-2019-0042823 20190412,KR10-2020-0018440 20200214
- Main IPC: C08K5/11
- IPC: C08K5/11 ; C07C67/465 ; C07C69/34

Abstract:
Disclosed herein is an acetylated lactide oligomer-based plasticizer and a method of preparing the same having improved thermal stability, enhanced plasticity and excellent compatibility with a resin, the method, including: (a) synthesizing a lactide oligomer through ring-opening polymerization (ROP) of an initiator and lactide; (b) putting acetic anhydride into the lactide oligomer and performing acetylation; and (c) removing acetic acid generated in step (b) and unreacted acetic anhydride.
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