Patents by Inventor Martin Reif

Martin Reif 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).

  • Method for the production of alkoxycarbonylamino triazines
    Publication number: 20060069254
    Abstract: In a process for preparing alkoxycarbonylaminotriazines, di- or triaminotriazines are reacted with cyclic carbonic esters and optionally with minor amounts of acyclic carbonic esters in the presence of an alcohol and of an alkali metal alkoxide or alkaline earth metal alkoxide as a base.
    Type: Application
    Filed: December 16, 2003
    Publication date: March 30, 2006
    Inventors: Jorg Schneider, Gunter Scherr, Hans Schupp, Andreas Eichfelder, Alian Robert, Martin Reif
  • Light isocyanates, method for producing them and use thereof
    Patent number: 6900348
    Abstract: A process is provided for preparing light-colored isocyanates which can be used for preparing urethane compounds, in particular polyurethanes, for example polyurethane foams.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: May 31, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Martin Reif, Peter van den Abeel, Filip Nevejans, Hans Volkmar Schwarz, Ulrich Penzel, Volker Scharr
  • Method for preparing alkoxycarbonylamino-triazines
    Publication number: 20040249149
    Abstract: A process is described for preparing alkoxycarbonylaminotriazines by reacting di- or triaminotriazines with dimethyl carbonate in the presence of an alcohol and of an alkali metal or alkaline earth metal methoxide base.
    Type: Application
    Filed: March 31, 2004
    Publication date: December 9, 2004
    Inventors: Joerg Schneider, Gunter Scherr, Hans Schupp, Andreas Eichfelder, Alain Robert, Martin Reif
  • Method for producing mdi, especially 2,4'-mdi
    Publication number: 20040171869
    Abstract: MDI is prepared by a process comprising the following steps:
    Type: Application
    Filed: April 14, 2004
    Publication date: September 2, 2004
    Inventors: Martin Reif, Bernd Bruchmann, Siegmund Pohl, Carl Bettendorf, Heinz Plaumann, Kai Thiele
  • Process for producing polyisocyanates containing biuret groups from (cyclo)aliphatic diisocyanates
    Patent number: 6414184
    Abstract: A process for preparing biuret-functional polyisocyanates from at least one aliphatic or cycloaliphatic diisocyanate and from at least one amine or water or a mixture thereof as reactants involves mixing the reactants with one another in a mixing unit having a high shear action.
    Type: Grant
    Filed: February 10, 1999
    Date of Patent: July 2, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Bruchmann, Martin Reif, Werner Hofscheuer, Joachim Jähme, Werner Langer, Hans Renz, Günter Mohrhardt, Michael Schiessl
  • Preparation of isocyanates having a light color
    Patent number: 5872278
    Abstract: In a process for preparing isocyanates having a light color by reacting the corresponding amines with phosgene, the amines are treated with solid inorganic substances containing Lewis acid and/or Bronsted acid centers prior to the reaction with the phosgene.
    Type: Grant
    Filed: March 18, 1998
    Date of Patent: February 16, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Rupert Kraus, Martin Reif, Bernd Bruchmann, Helmut Tesch