| 7767855 |
Method for the continuous production of an amine |
Frank Haese, Joachim Wulff-Doering, Peter C. Gaa, Frank-Friedrich Pape, Johann-Peter Melder +1 more |
2010-08-03 |
| 5543515 |
Preparation of tertiary amine oxides |
Hardo Siegel, Guenther Seybold |
1996-08-06 |
| 5476969 |
Highly reactive polyoxyalkylene-polyols containing tertiary amino groups in bonded form, their preparation, and their use for the preparation of polyisocyanate polyaddition products |
Werner Hinz, Stefan Adams, Christian Maletzko, Klaus Vorspohl, Ruth Zschiesche |
1995-12-19 |
| 5359082 |
Preparation of 4-substituted imidazoles from N-formyl-.alpha.-aminonitrile |
Thomas-Michael Kahl, Horst Neuhauser, Hardo Siegel, Michael Kroener |
1994-10-25 |
| 5260484 |
Polytetrahydrofuran derivatives having terminal aromatic groups |
Eckhard Hickmann, Hardo Stegel |
1993-11-09 |
| 5254738 |
Preparation of 1,4-alkylenediamines |
Hardo Siegel, Matthias Irgang |
1993-10-19 |
| 5239120 |
Preparation of 2-(3-aminopropyl)-cycloalkylamines |
Franz Merger, Claus-Ulrich Priester, Gerhard Koppenhoefer, Wolfgang Harder, Tom Witzel +1 more |
1993-08-24 |
| 5231231 |
Process for preparing a poly(1,4-butanediol-.omega.,.omega.'-bismercaptan) |
Hardo Siegel, Eckhard Hickmann |
1993-07-27 |
| 5136051 |
Preparation of 2-pyrrolidinones |
Ludwig Schuster |
1992-08-04 |
| 5132427 |
Process for the preparation of amines |
Hardo Siegel, Peter Jaeger, Matthias Irgang |
1992-07-21 |
| 5130454 |
Polytetrahydrofuran derivatives having terminal aromatic groups |
Eckhard Hickmann, Hardo Siegel |
1992-07-14 |
| 5101045 |
Preparation of N-substituted pyrrolidones |
Hardo Siegel |
1992-03-31 |
| 5101044 |
Preparation of N-substituted pyrrolidin-2-ones |
Ludwig Schuster |
1992-03-31 |
