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:
Aug. 29, 2023
Filed:
Dec. 18, 2019
Basf SE, Ludwigshafen am Rhein, DE;
Sophia Ebert, Ludwigshafen am Rhein, DE;
Dieter Boeckh, Ludwigshafen am Rhein, DE;
Dawid Marczewski, Ludwigshafen am Rhein, DE;
Stefano Scialla, Cincinnati, OH (US);
Brian Joseph Loughnane, Cincinnati, OH (US);
Frank Huelskoetter, Cincinnati, OH (US);
BASF SE, Ludwigshafen am Rhein, DE;
Abstract
The present invention relates to a process for the synthesis of organosulfate salts of amino acid esters comprising the steps of reacting at least one lactam with at least 3 carbon atoms in the lactam ring with sulfuric acid in an aqueous solution followed by esterification of the reaction product of the previous step with at least 200 mol-% of at least one alcohol selected from the group consisting of linear alkyl alcohol containing one hydroxy group, branched alkyl alcohol containing one hydroxy group, linear alkylether alcohol containing one hydroxy group, branched alkylether alcohol containing one hydroxy group, phenoxyalkanols containing one hydroxy group, and mixtures thereof; followed optionally removal of water and/or removal of excess alcohol.