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:
Oct. 06, 2020
Filed:
Aug. 07, 2018
Nouryon Chemicals International B.v., Arnhem, NL;
Antoon Jacob Berend Ten Kate, Arnhem, NL;
Rens Veneman, Amersfoort, NL;
Michiel Jozef Thomas Raaijmakers, Deventer, NL;
Slavisa Jovic, Utrecht, NL;
Rolf Krister Edvinsson, Partille, SE;
Hendrik Van Dam, Ede, NL;
Eike Nicolas Kantzer, Uddevalla, SE;
Ina Ehlers, Stenungsund, SE;
Björn Patrik Skansen, Mölndal, SE;
Michael Bertil Einar Andersson-Sarning, Gothenburg, SE;
Karl Fredrik Lake, Södertälje, SE;
Stig Mikael Wernersson, Södertälje, SE;
NOURYON CHEMICALS INTERNATIONAL B.V., Arnhem, NL;
Abstract
A process is provided for converting cyclic alkyleneureas into their corresponding alkyleneamines. The process includes reacting a feedstock comprising cyclic alkyleneureas in the liquid phase with water in an amount of from about 0.1 to about 20 mole water per mole urea moiety, at a temperature of at least 230° C., with removal of CO2. The process may allow the efficient conversion of alkyleneureas into the corresponding alkyleneamines. In certain embodiments, the process has a high yield and low side product production.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile