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:
Mar. 31, 2026
Filed:
Nov. 29, 2021
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Hyunchul Jung, Daejeon, KR;
Jun Ho Yoon, Daejeon, KR;
Wan Kyu Oh, Daejeon, KR;
Yujin An, Daejeon, KR;
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 63/08 (2006.01); G01N 24/08 (2006.01);
U.S. Cl.
CPC ...
G01N 24/087 (2013.01); C08G 63/08 (2013.01);
Abstract
Provided is a method for analyzing the content of D-lactic repeating units (D content) in polylactic acid that has a feature that the D content in polylactic acid can be quickly and accurately analyzed by using NMR data of polylactic acid and hypothetical polylactic acid without special chemical treatment for polylactic acid.