Patents by Inventor Martin Anstock

Martin Anstock 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).

  • Process for continuous isocyanate modification
    Patent number: 9790194
    Abstract: A process for continuous preparation of oligomeric or polymeric isocyanates by catalytic modification of monomeric di- and/or triisocyanates, characterized in that at least one isocyanate component A and at least one catalyst component B are combined continuously in a reaction apparatus and conducted through the reaction apparatus as a reaction mixture, the residence time distribution being characterized according to the dispersion model by Bo (Bodenstein number) above 40, preferably above 60 and most preferably above 80.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: October 17, 2017
    Assignee: Covestro Deutschland AG
    Inventors: Frank Richter, Martin Anstock, Philip Bahke, Andreas Gosch, Reinhard Halpaap, Andreas Hecking, Sigurd Buchholz, Ursula Tracht, Adrian Cosmin Dobre
  • PROCESS FOR CONTINUOUS ISOCYANATE MODIFICATION
    Publication number: 20140343280
    Abstract: A process for continuous preparation of oligomeric or polymeric isocyanates by catalytic modification of monomeric di- and/or triisocyanates, characterized in that at least one isocyanate component A and at least one catalyst component B are combined continuously in a reaction apparatus and conducted through the reaction apparatus as a reaction mixture, the residence time distribution being characterized according to the dispersion model by Bo (Bodenstein number) above 40, preferably above 60 and most preferably above 80.
    Type: Application
    Filed: November 29, 2012
    Publication date: November 20, 2014
    Inventors: Frank Richter, Martin Anstock, Philip Bahke, Andreas Gosch, Reinhard Halpaap, Andreas Hecking, Sigurd Buchholz, Ursula Tracht, Adrian Cosmin Dobre
  • Reactor for corrosive reaction mixtures
    Patent number: 5899566
    Abstract: A reactor for corrosive and abrasive reaction mixtures having an upper setion and a conically tapered lower reaction section, with a screw mixer consisting of a jacketed band surrounding a conveyor screw, suspended fron the top of the reactor, and an inlet for solid reactants which leads directly into the vertical conveying device.
    Type: Grant
    Filed: June 18, 1997
    Date of Patent: May 4, 1999
    Assignee: Bayer Aktiengesellschaft
    Inventors: Siegfried Zingel, Wilfried Burow, Martin Anstock, Dieter Zeitz, Olaf Schmidt-Park