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:
Jun. 24, 2014
Filed:
Aug. 31, 2012
Chae Hwan Hong, Gyeonggi-do, KR;
SI Hwan Kim, Gyeonggi-do, KR;
Jiyoun Seo, Gyeonggi-do, KR;
DO Suck Han, Gyeonggi-do, KR;
Chae Hwan Hong, Gyeonggi-do, KR;
Si Hwan Kim, Gyeonggi-do, KR;
Jiyoun Seo, Gyeonggi-do, KR;
Do Suck Han, Gyeonggi-do, KR;
Hyundai Motor Company, Seoul, KR;
Abstract
The present invention provides a method of preparing lactide with a high yield from lactate obtained through a fermentation process. In certain embodiments, the invention provides a method of preparing high-purity lactide with a high yield, wherein the method comprises treating lactate with a specific solvent, using a catalyst, and phase-separating the resultant. In accordance with the invention, costs for manufacturing polylactic acid can be considerably reduced.