| 6754979 |
Device for drying and thermally treating granulates with an inert gas stream |
Ragnhild Pille, Gunter Pipper |
2004-06-29 |
| 6703475 |
Method for the continuous production of copolyamides based on a lactam (I), a diamine (II) and a dicarboxylic acid (III) |
Jürgen Deininger, Walter Gotz, Gunter Pipper |
2004-03-09 |
| 6548626 |
Method for preparing polyamides from lactams and polyamide extracts |
Ralf Mohrschladt, Volker Hildebrandt |
2003-04-15 |
| 6429279 |
Preparation of polyamides |
Hans-Harald Hünger, Rainer Neuberg, Gunter Pipper, Thomas Sauer, Axel Wilms |
2002-08-06 |
| 6326457 |
Continuous polyamide extraction process |
Jörg Erbes, Gunter Pipper |
2001-12-04 |
| 6320021 |
Continuous polyamide extraction process |
Peter Hildenbrand, Reinhard Lang, Gunter Pipper |
2001-11-20 |
| 6194538 |
Process for producing polyamides from aminonitriles |
Robert A. Weiss, Dieter Krauss, Dieter Keller, Gunter Pipper, Wolfgang Harder +1 more |
2001-02-27 |
| 5886137 |
Preparation of salts of polyaspartic acid and their use in detergents and cleaners |
Matthias Kroner, Gunnar Schornick, Uwe Strotmann, Volker Schwendemann, Thomas A. Meyer |
1999-03-23 |
| 5830985 |
Preparation of polyaspartic acid |
Matthias Kroner, Gunnar Schornick, Hans-Jacob Feindt, Thomas A. Meyer, Udo Metzmann |
1998-11-03 |
