The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 17, 2022
Filed:
Mar. 06, 2020
Applicant:
Korea Research Institute of Chemical Technology, Daejeon, KR;
Inventors:
Jihoon Shin, Daejeon, KR;
Haemin Jeong, Daejeon, KR;
Nam-Kyun Kim, Daejeon, KR;
Young-Wun Kim, Daejeon, KR;
Assignee:
KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY, Daejeon, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 5/11 (2006.01); C07C 67/465 (2006.01); C07C 69/34 (2006.01);
U.S. Cl.
CPC ...
C08K 5/11 (2013.01); C07C 67/465 (2013.01); C07C 69/34 (2013.01);
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.