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Method for improving a piperazine colour stability |
Holger Evers, Michael Jödecke, Johann-Peter Melder, Gunther Van Cauwenberge |
2010-07-20 |
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Method for producing ethyleneamines |
Matthias Frauenkron, Holger Evers, Johann-Peter Melder, Roderich Röttger, Markus Siegert +2 more |
2009-10-13 |
| 7393978 |
Method for producing ethylene-amines |
Matthias Frauenkron, Thomas Krug, Holger Evers, Johann-Peter Melder, Roderich Röttger +4 more |
2008-07-01 |
| 6783693 |
Hydraulic fluids, containing cyclic carboxylic acid derivatives |
Bayram Aydin, Uwe Fidorra, Arthur Hohn, Ladislaus Meszaros, Knut Oppenlander +3 more |
2004-08-31 |
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Process for preparing monoisopropylamine |
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2003-05-13 |
| 6525222 |
Process for preparing amines |
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2003-02-25 |
| 6417353 |
Preparing amines |
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2002-07-09 |
| 6403845 |
Preparation of pentanediols from alkoxydihydropyrans |
Joachim Pfeffinger, Peter Wahl, Karsten Eller, Arthur Hohn, Jürgen Hunger |
2002-06-11 |
