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. 06, 2021
Filed:
Aug. 07, 2018
Nouryon Chemicals International B.v., Arnhem, NL;
Michiel Jozef Thomas Raaijmakers, Deventer, NL;
Antoon Jacob Berend Ten Kate, Arnhem, NL;
Eike Nicolas Kantzer, Uddevalla, SE;
Rens Veneman, Amersfoort, NL;
Slavisa Jovic, Utrecht, NL;
Rolf Krister Edvinsson, Partille, SE;
Karl Fredrik Lake, Södertälje, SE;
Hendrik Van Dam, Ede, NL;
Ina Ehlers, Stenungsund, SE;
Sara Erika Tönnerfors, Södertälje, SE;
NOURYON CHEMICALS INTERNATIONAL B.V., Arnhem, NL;
Abstract
A process to convert the cyclic monourea of ethylene amine compounds (U-EA) into ethylene amine compound (EA) is provided. The process may include performing a reactive separation step using a reaction mixture containing the cyclic monourea, wherein one cyclic monourea (U-EA) reacts with another cyclic monourea (U-EA) to transfer its urea unit thereto. The process may further include separating the obtained ethylene amine compound (EA) without urea unit from the reaction mixture.