| 9701617 |
Process for producing diamines and polyamines of the diphenylmethane series |
Stefan Wershofen, Heinz Muller, Richard Adamson, Knut Sommer |
2017-07-11 |
| 9365503 |
Process for the preparation of isocyanates in the gas phase |
Klaus Biskup, Rainer Bruns, Wolfgang Lorenz, Lars Padeken, Bernd Pennemann +2 more |
2016-06-14 |
| 9024057 |
Process for the preparation of isocyanates in the gas phase |
Klaus Biskup, Rainer Bruns, Wolfgang Lorenz, Friedhelm Steffens, Volker Michele |
2015-05-05 |
| 8399702 |
Process for the production of aromatic diisocyanates in the gas |
Klaus Biskup, Rainer Bruns, Friedhelm Steffens, Lars Padeken |
2013-03-19 |
| 8318971 |
Process for preparing methylenediphenyl diisocyanates |
Andreas Bulan, Rainer Weber, Richard Adamson, Matthias Böhm, Christian Six |
2012-11-27 |
| 7615662 |
Process for the preparation of isocyanates in the gas phase |
Klaus Biskup, Rainer Bruns, Friedhelm Steffens, Herbert Stutz |
2009-11-10 |
| 7547801 |
Process for the continuous preparation of isocyanates |
Ricardo Serra, Matthias Ehlers, Jeffrey Bolton, Gary B. Solak, Kirk J. Bourgeois +8 more |
2009-06-16 |
| 7541487 |
Process for the preparation of isocyanates in the gas phase |
Klaus Biskup, Rainer Bruns, Friedhelm Steffens, Herbert Stutz |
2009-06-02 |
| 7528283 |
Process for preparing diamines and polyamines from the diphenylmethane series |
Jeffrey Bolton, Richard Adamson, Heinz Muller, Rudolf Uchdorf |
2009-05-05 |
| 7511176 |
Process for the preparation of toluenediamines by catalytic hydrogenation of dinitrotoluenes |
Wolfgang Lorenz, Lars Padeken, Bernd Pennemann, Friedhelm Steffens, Gerhard Wiechers |
2009-03-31 |
| 7495136 |
Process for the production of dinitrotoluene |
Wolfgang Lorenz, Juergen Muennig, Bernd Pennemann, Gerhard Wiechers |
2009-02-24 |
| 7312362 |
Process for the production of di- and polyamines of the diphenylmethane series |
Berthold Keggenhoff, Richard Adamson, Rudolf Uchdorf |
2007-12-25 |
| 7253321 |
Process for the preparation of polyamines of the diphenylmethane series at a low degree of protonation |
Torsten Hagen, Daniel Koch, Hans-Georg Pirkl, Stefan Wershofen, Rudolf Uchdorf +1 more |
2007-08-07 |
| 5563296 |
Continuous process for preparing aromatic amines |
Uwe J. Zarnack, Dieter Grenner, Hartmut Hetzel, Helmut Judat |
1996-10-08 |
| 5248812 |
Process for the isolation of 2-naphthylamine-1,5-disulphonic acid |
Horst Behre, Heinz U. Blank, Holger Heidenreich, Paul Uhrhan |
1993-09-28 |
| 4522952 |
Process for the fluorination of polymers, and perfluorinated ion exchangers |
Joachim Klein, Hartmut Widdecke, Frank Doscher |
1985-06-11 |
