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. 18, 2023
Filed:
Jul. 01, 2019
Nouryon Chemicals International B.v., Arnhem, NL;
Rudolf Antonius Maria Venderbosch, Duiven, NL;
Alexander Michael Wetzel, Jörlanda, SE;
Louis Eckhard Schwarzmayr, Hjälteby, SE;
Hanna Ingrid Birgitta Jacobson Ingemyr, Frölunda, SE;
Natalija Smolko Schwarzmayr, Hjälteby, SE;
NOURYON CHEMICALS INTERNATIONAL B.V., Arnhem, NL;
Abstract
The present disclosure relates to a process to prepare esters of an amino carboxylic acid of the formula (I) comprising the steps of reacting an aminocarboxylic acid present as a cyclic amide of the formula II and an alkanol of the formula R—(O-A)mOH in the presence of the Brønsted-Lowry acid at a temperature of between 60 and 200 degrees C. wherein the total molar amount of aminocarboxylic acid to the molar amount of the alkanol is between 1:0.8 and 1:1.5 and wherein the Brønsted-Lowry acid is not added to the reaction mixture until least 50% of the total of the alkanol and cyclic amide are added to the reaction mixture.