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:
Feb. 17, 2015
Filed:
Aug. 28, 2009
Rainer Hagen, Berlin, DE;
Adam B. Verweij, Aduard, NL;
Udo Muhlbauer, Berlin, DE;
Joachim Schulze, Soest, DE;
Wolfgang Tietz, Biendorf, DE;
Olga Renate Göhler, Grimma, DE;
Rainer Hagen, Berlin, DE;
Adam B. Verweij, Aduard, NL;
Udo Muhlbauer, Berlin, DE;
Joachim Schulze, Soest, DE;
Wolfgang Tietz, Biendorf, DE;
Klaus-Dieter Göhler, Grimma, DE;
Uhde Inventa-Fischer GmbH, Berlin, DE;
Uhde GmbH, Dortmund, DE;
Abstract
A mixture of cyclic diesters derived from lactic acid and in cases a mixture of a racemate of dilactide may be produced in several different processes. In some instances, the process can thereby start from the corresponding alpha-hydroxycarboxylic acids, the corresponding cyclic diesters or oligomers of the corresponding alpha-hydroxycarboxylic acids.