Issued Patents 1997
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5684107 | Agglomerated polymer particles of finely divided, water-soluble or water-swellable polymers, the preparation thereof and the use thereof | Reinhard Schneider, Norbert Grund | 1997-11-04 |
| 5662781 | Elimination of nitrile impurities from polymers | Walter Denzinger, Michael Kroener, Claudia Nilz | 1997-09-02 |
| 5661220 | Reaction products of olefinically unsaturated carboxylic acids and polyetherols and their use as demulsifiers for crude oil emulsions | Dieter Faul, Joachim Roser, Hans-Henning Vogel, Wilhelmus Slotman, Gerd Konrad | 1997-08-26 |
| 5656646 | Mixtures of polymers of monoethylenically unsaturated dicarboxylic acids and polymers of ethylenically unsaturated monocarboxylic acids and/or polyaminocarboxylic acids and their use | Johannes Perner, Paul Diessel, Helmut Guembel, Walter Denzinger, Matthias Kroner | 1997-08-12 |
| 5653815 | Process for solid-liquid extraction and extraction tower for carrying out the process | Dieter Hellmig, Siegfried Matusch, Guenter Pohner, Guenther Ross, Florian Sosnitza | 1997-08-05 |
| 5639723 | Reaction products of polybasic carboxylic acids and amino-containing compounds, their preparation and their use in detergents and cleaning agents | Matthias Kroner, Dieter Boeckh, Richard Baur, Alexander Kud, Volker Schwendemann | 1997-06-17 |
| 5630907 | Use of hydrolyzed copolymers of N-vinylcarboxamides and monoethylenically unsaturated carboxylic acids in papermaking | Claudia Nilz, Walter Denzinger, Michael Kroener, Friedrich Linhart, Rudolf Schuhmacher +2 more | 1997-05-20 |
| 5620748 | Use of graft polymers for fatliquoring and filling leather and fur skins | Hermann Birkhofer, Peter Danisch, Walter Denzinger, Michael Kneip | 1997-04-15 |
| 5599898 | Insoluble, only slightly swellable polymers containing amino groups, their preparation and their use | Walter Denzinger, Michael Kroener, Claudia Nilz | 1997-02-04 |