| 10501406 |
Low by-product content polyphenylene polymethylene polyisocyanates |
Michael Lorenz, Axel Franzke, Robert Baumann, Geert Janssens |
2019-12-10 |
| 9505711 |
Method for purifying mixtures comprising 4,4′-methylenediphenyl diisocyanate |
Johannes Jacobs, Kai Thiele, Anne-Kathrin Merten |
2016-11-29 |
| 9493491 |
Method of separating acids from chemical reaction mixtures by means of apolar amines |
Oliver Huttenloch, Patrick Deck, Holger Ganz, Michael Mauss, Wolfgang Körnig |
2016-11-15 |
| 9359269 |
Method of separating acids from chemical reaction mixtures by means of apolar amines |
Oliver Huttenloch, Patrick Deck, Holger Ganz, Michael Mauβ, Wolfgang Körnig |
2016-06-07 |
| 9000213 |
Process for coproducing di- and/or polyisocyanates and glycols |
Robert Baumann, Axel Franzke, Eckhard Stroefer, Gerhard Theis |
2015-04-07 |
| 8907124 |
Process for preparing methylenedi(phenyl isocyanate) |
Kai Thiele, Heiner Schelling |
2014-12-09 |
| 8871965 |
Method for producing urethanes |
Axel Franzke, Robert Baumann |
2014-10-28 |
| 8835673 |
Process for preparing isocyanates |
Torsten Mattke, Eckhard Stroefer, Julia Leschinski, Radwan Abdallah, Axel Franzke |
2014-09-16 |
| 8822718 |
Process for preparing isocyanates by thermally cleaving carbamates |
Eckhard Stroefer, Robert Baumann, Axel Franzke, Joachim Pfeffinger |
2014-09-02 |
| 8759569 |
Process for the production of isocyanates, preferably diisocyanates and polyisocyanates with solvent recirculation |
Heiner Schelling, Ulrich Penzel, Eckhard Stroefer, Matthias Eiermann, Jon S. Speier +1 more |
2014-06-24 |
| 8729291 |
Method for producing urethanes composed of di-functional aromatic amines and dialkyl carbonates |
Axel Franzke, Robert Baumann, Roderich Roettger, Andreas Leitner, Matthias Kloetzer |
2014-05-20 |
| 8680333 |
Process for the preparation of aromatic formamides |
Axel Franzke, Torsten Mattke, Julia Leschinski, Radwan Abdallah, Robert Baumann +1 more |
2014-03-25 |
| 8680323 |
Process for preparing isocyanates by thermal dissociation of carbamates |
Axel Franzke, Robert Baumann, Eckhard Stroefer |
2014-03-25 |
| 8440856 |
Method for treating residues from the production of isocyanates |
Martin Sesing, Eckhard Stroefer |
2013-05-14 |
| 8273915 |
Process for preparing isocyanates |
Bernd Rumpf, Martin Fiene, Eckhard Stroefer |
2012-09-25 |
| 8088950 |
Process for the preparation of triamides from ammonia and amido-dichlorides |
Oliver Huttenloch, Patrick Deck, Oliver Bey, Heiner Schelling, Markus Siegert |
2012-01-03 |
| 7709679 |
Process for simultaneously preparing 4,4′-diphenylmethanediamine and diphenylmethane diisocyanate and polyphenylenepolymethylene polyisocyanates |
Hans-Juergen Pallasch, Filip Deberdt, Johnny Moors |
2010-05-04 |
