Patents by Inventor Rolf Jacob

Rolf Jacob has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240132444
    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.
    Type: Application
    Filed: December 14, 2021
    Publication date: April 25, 2024
    Applicant: NOURYON CHEMICALS INTERNATIONAL B.V.
    Inventors: Eike Nicolas KANTZER, Alexey Borisovich ZAITSEV, Tjerk Oedse BOONSTRA, Ina EHLERS, Rolf Krister EDVINSSON, Martin HEUS, Antoon Jacob Berend TEN KATE, Michiel Jozef Thomas RAAIJMAKERS
  • Patent number: 11919866
    Abstract: A process for producing a cyclic alkylene urea product of Formula I: in which a compound of Formula II and/or Formula III is contacted in a reaction zone with a compound of Formula IV and/or Formula V and in the presence of one or more carbonyl delivering compounds; wherein the compound of Formula II and/or the compound of Formula III are added to a reaction zone comprising compound of Formula IV and/or compound of Formula (V) continuously or semi-continuously over a period of time, or in two or more batches.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: March 5, 2024
    Assignee: NOURYON CHEMICALS INTERNATIONAL B.V.
    Inventors: Antoon Jacob Berend Ten Kate, Karl Fredrik Lake, Michiel Jozef Thomas Raaijmakers, Rolf Krister Edvinsson, Jenny Valborg Therese Adrian Meredith, Rens Veneman, Hendrik Van Dam, Eike Nicolas Kantzer, Ina Ehlers, Slavisa Jovic
  • Patent number: 4378998
    Abstract: Low-melting, easily processable and at the same time hard polar waxes are obtained by treating copolymers, which are composed of ethylene and 0.5 to 50% by weight of a monomer containing oxygen-containing groups and have melt indices (MFI 190/2) of between 0.01 and 400 g/10 minutes, in the molten state, dispersed in a dispersing agent which is inert towards oxygen, with oxygen or oxygen-containing gases. Preferably, ethylene/vinyl acetate copolymers are oxidized, and these oxidation products are particularly suitable as the wax component in water-based and/or organic solvent-based polishes and in pastes.
    Type: Grant
    Filed: October 29, 1980
    Date of Patent: April 5, 1983
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Helmut Korbanka, Karl-Heinz Stetter, Gunther Illmann, Rolf Jacob, Otto Malitschek, Josef Strehle