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:
Jun. 16, 2026
Filed:
Dec. 14, 2021
Nouryon Chemicals International B.v., Amsterdam, NL;
Eike Nicolas Kantzer, Uddevalla, SE;
Alexey Borisovich Zaitsev, Deventer, NL;
Tjerk Oedse Boonstra, Duiven, NL;
Ina Ehlers, Stenungsund, SE;
Rolf Krister Edvinsson, Partille, SE;
Martin Heus, Arnhem, NL;
Antoon Jacob Berend Ten Kate, Arnhem, NL;
Michiel Jozef Thomas Raaijmakers, Deventer, NL;
NOURYON CHEMICALS INTERNATIONAL B.V., Arnhem, NL;
Abstract
A process for manufacturing a nitrile compound through chain elongation of an alkylene amine compound containing three or more amine units in which at least two amine units are protected by a cyclic urea unit and at least one amine unit is not protected, includes reacting the at least one amine unit that is not protected with glycolonitrile or with the combination of formaldehyde and a cyanide compound selected from HCN and inorganic cyanide salts, to add at least one acetonitrile group to the at least one amine unit that is not protected.