Patents by Inventor Bernd Sojka

Bernd Sojka 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).

  • Gas-phase phosgenation process
    Patent number: 8692016
    Abstract: The present invention relates to a process for the phosgenation of amines in the gas phase, in which a specific type of heat exchanger is used for vaporizing the amines.
    Type: Grant
    Filed: August 12, 2010
    Date of Patent: April 8, 2014
    Assignee: Bayer MaterialScience AG
    Inventors: Josef Sanders, Hanno Brummer, Jorg Laue, Bernd Sojka, Marcus Eichmann, Verena Haverkamp
  • GAS-PHASE PHOSGENATION PROCESS
    Publication number: 20100312009
    Abstract: The present invention relates to a process for the phosgenation of amines in the gas phase, in which a specific type of heat exchanger is used for vaporizing the amines.
    Type: Application
    Filed: August 12, 2010
    Publication date: December 9, 2010
    Applicant: Bayer MaterialScience AG
    Inventors: Josef Sanders, Hanno Brümmer, Jörg Laue, Bernd Sojka, Marcus Eichmann, Verena Haverkamp
  • Process for the preparation of polyaddition compounds
    Publication number: 20070142608
    Abstract: The present invention relates to a novel process for the preparation of polyaddition products, to the products obtainable by this process and to their use as starting components in the production of polyurethane plastics. The process includes the reaction of A) polyisocyanates with uretdione groups having a mean isocyanate functionality of at least 2.0, optionally with the concomitant use of B) other diisocyanates and/or polyisocyanates, different from A, in an amount of up to 70 wt. %, based on the total weight of components A) and B), with C) polyols in the molecular weight range 62-2000 having a mean functionality of at least 2.0, or mixtures of polyols and optionally D) other isocyanate-reactive monofunctional compounds in an amount of up to 40 wt. %, based on the total weight of components C) and D). An equivalent ratio of isocyanate groups to isocyanate-reactive groups of 1.8:1 to 0.
    Type: Application
    Filed: December 13, 2006
    Publication date: June 21, 2007
    Inventors: Hans Laas, Bernd Sojka, Michael Grahl, Josef Sanders, Wolfgang Fischer, Reinhard Halpaap
  • Gas-phase phosgenation process
    Publication number: 20070043233
    Abstract: The present invention relates to a process for the phosgenation of amines in the gas phase, in which a specific type of heat exchanger is used for vaporizing the amines.
    Type: Application
    Filed: July 27, 2006
    Publication date: February 22, 2007
    Inventors: Josef Sanders, Hanno Brummer, Jorg Laue, Bernd Sojka, Marcus Eichmann, Verena Haverkamp