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:
Jan. 04, 2022
Filed:
Jul. 03, 2018
Nouryon Chemicals International B.v., Arnhem, NL;
Eike Nicolas Kantzer, Uddevalla, SE;
Karl Fredrik Lake, Södertälje, SE;
Antoon Jacob Berend Ten Kate, Arnhem, NL;
Michiel Jozef Thomas Raaijmakers, Deventer, NL;
Rens Veneman, Deventer, NL;
Rolf Krister Edvinsson, Partille, SE;
Ina Ehlers, Ödsmål, SE;
Michael Bertil Einar Sarning, Gothenburg, SE;
Robert Kristoffer Berg, Rönninge, SE;
Hendrik Van Dam, Frölunda, SE;
NOURYON CHEMICALS INTERNATIONAL B.V., Arnhem, NL;
Abstract
Urea derivatives, methods for preparing ethylene amines, and methods of polymer manufacturing are provided. An exemplary method for preparing ethylene amines with n ethylene units and n+1 amine groups wherein n is at least 4, or urea derivatives of said ethylene amines, includes reacting an ethanolamine-functional compound, an amine-functional compound, and a carbon oxide delivering agent, wherein the ethanolamine-functional compound is of the formula HO—(C2H4-NH-)qH, q is at least 1, the amine-functional compound is of the formula H2N—(C2H4-NH-)rH, r is at least 1, the sum q+r is at least 4 and wherein optionally one or more of the ethanol-amine functional compound or amine-functional compound are at least partly used as their cyclic carbamate derivative, or linear or cyclic urea derivative.