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:
Apr. 21, 2020
Filed:
Dec. 08, 2014
Applicant:
Purac Biochem Bv, Gorinchem, NL;
Inventors:
Gerrit Gobius Du Sart, Gorinchem, NL;
Jan Arie Niessen, Gorinchem, NL;
Vincent De Jong, Gorinchem, NL;
Assignee:
PURAC BIOCHEM BV, Gorinchem, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 21/3577 (2014.01); G01N 21/59 (2006.01); C07D 319/12 (2006.01); G01N 21/359 (2014.01);
U.S. Cl.
CPC ...
G01N 21/59 (2013.01); C07D 319/12 (2013.01); G01N 21/359 (2013.01); G01N 2201/0826 (2013.01); G01N 2201/12 (2013.01);
Abstract
A method for quantification of the amount of impurities in lactide. The method is characterized in that the quantification of the impurities is based on measurements performed on absorptions in the near Infra-Red region of the electromagnetic spectrum. With this method, small amounts of impurities like water, free-acid species or both can be determined online in a reaction mixture of lactide in a relatively simple manner. This allows a simple online monitoring of the production process of lactide.