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. 05, 2022
Filed:
Mar. 12, 2018
Nouryon Chemicals International B.v., Arnhem, NL;
Antoon Jacob Berend Ten Kate, Arnhem, NL;
Michiel Jozef Thomas Raaijmakers, Deventer, NL;
Rens Veneman, Deventer, NL;
Karl Fredrik Lake, Soedertaelje, SE;
Robert Kristoffer Berg, Roenninge, SE;
Eike Nicolas Kantzer, Uddevalla, SE;
Rolf Krister Edvinsson, Partille, SE;
Hendrik Van Dam, Arnhem, NL;
Ina Ehlers, Stenungsund, SE;
NOURYON CHEMICALS INTERNATIONAL B.V., Arnhem, NL;
Abstract
The present disclosure pertains to a process for preparing hydroxyethylethyleneamines, ethyleneamines, or mixtures thereof, and/or ethylene urea derivatives thereof. The process includes reacting diethanolamine with an amine-functional compound that includes at least two —NH— units of which at least one is selected from the group of primary amine groups and cyclic secondary amine groups. The amine-functional compound includes at least one —NH—CH2-CH2-NH— unit wherein one or more —NH—CH2-CH2-NH— units in the amine-functional compound may be present in the form of cyclic ethylene urea moieties, piperazine moieties, or linear ethylene urea moieties, in the presence of a carbon oxide delivering agent.