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:
Sep. 03, 2019
Filed:
Feb. 11, 2016
Purac Biochem B.v., Gorinchem, NL;
Wim Jacob Groot, Gorinchem, NL;
Jan Van Krieken, Gorinchem, NL;
Tanja Dekic Zivkovic, Gorinchem, NL;
Andre Banier De Haan, Gorinchem, NL;
PURAC BIOCHEM B.V., Gorinchem, NL;
Abstract
A method for producing lactide including the steps of: providing a solution of lactic acid in a volatile organic solvent, subjecting the solution to an evaporation step to remove volatile organic solvent and water, resulting in the formation of a composition including lactic acid oligomer, adding catalyst to the composition including lactic acid oligomer, and bringing the mixture to reaction conditions, to form lactide. It has been found that the process results in the efficient production of lactide with a high production rate and a good product quality.