Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10676448 | Method for producing TDI-trimerisates with high purity | Josef Sanders, Andreas Hecking, Reinhard Halpaap, Frank Richter, Jan Busch +3 more | 2020-06-09 |
| 10189945 | Method for producing light-coloured TDI-polyisocyanates | Josef Sanders, Andreas Hecking, Reinhard Halpaap, Frank Richter, Jan Busch +2 more | 2019-01-29 |
| 10131641 | Method for producing TDI-trimerisates with high purity | Josef Sanders, Andreas Hecking, Reinhard Halpaap, Frank Richter, Jan Busch +3 more | 2018-11-20 |
| 9376403 | Process for trimerising cycloaliphatic diisocyanates | Reinhard Halpaap, Mario Schneider, Uwe Werner | 2016-06-28 |
| 7442277 | Process for the removal of volatile compounds from mixtures of substances using a micro-evaporator | Kurt-Manfred Kupper, Hartmut Steenbeck, Almut Nagel | 2008-10-28 |
| 6992186 | Process for preparing low-monomer-content TDI trimers | Martin Brahm, Joachim Simon | 2006-01-31 |
| 6936678 | Process for preparing low-monomer-content TDI trimers | Martin Brahm, Joachim Simon, Jürgen Walloschek | 2005-08-30 |
| 6703453 | Condensation cross-linking polyurethane materials containing special aminosilanes, a method for the production thereof and their use | Lutz Schmalstieg, Ralf Lemmerz, Ulrich Walter | 2004-03-09 |
| 6599354 | Piperazinone derivatives with alkoxysilane groups | Lutz Schmalstieg, Ralf Lemmerz, Ulrich Walter | 2003-07-29 |
| 6545087 | Polyurethane prepolymers having alkoxysilane end groups, method for the production thereof and their use for the production of sealants | Lutz Schmalstieg, Ralf Lemmerz, Marie-Helene Walter | 2003-04-08 |
| 5981653 | Process for the production of aqueous stoving coating compositions | Lothar Kahl, Bernd Klinksiek, Christian Wamprecht, Manfred Bock, Klaus Nachtkamp | 1999-11-09 |
| 5922806 | Aqueous polyurethane dispersions based on 1-methyl-2,4-and/or -2,6-diisocyanatocyclohexane and their use as binders for glass fiber sizings | Harald Blum, Karin Naujoks, Helmut Reiff, Hans-Ulrich Meier-Westhues, Raymond Audenaert | 1999-07-13 |
| 5910556 | Dispersing agents for aqueous coatings compositions | Christian Wamprecht, Stephan Kirchmeyer, Jan Mazanek | 1999-06-08 |
| 5905170 | Process for the production of 1-amino-1-methyl-3(4)-aminomethylcyclohexane | Konrad Fischer, Dieter Arlt, Carl Casser, Peter Maas, Pierre Louis Woestenborghs +1 more | 1999-05-18 |
| 5900507 | Process for the preparation of 1-amino-1-methyl-3(4)-aminomethyl cyclohexane | Konrad Fischer, Dieter Arlt, Carl Casser, Peter Maas, Pierre Louis Woestenborghs +2 more | 1999-05-04 |
| 5883291 | Heat exchange media for the thermal cracking of carbamic acid esters | Dieter Schleenstein, Christian Rasp, Georg Ronge | 1999-03-16 |
| 5852106 | Coating compositions for glass substrates | Beate Baumbach, Klaus Nachtkamp, Eberhard Konig, Randall Dearth, Manfred Bock +1 more | 1998-12-22 |
| 5804647 | Aqueous polyurethane-ureas, a process for their production and their use in coating compositions | Klaus Nachtkamp, Eberhard Arning, Rolf Roschu | 1998-09-08 |
| 5744633 | Process for the production of diurethanes and their use for the production of diisocyanates | Eberhard Konig, Klaus Nachtkamp, Ernst Kysela | 1998-04-28 |
| 5731458 | Process for thermally cracking carbamic acid esters | Jurgen Dahmer, Dieter Schleenstein, Heinrich Steude, Christian Rasp, Georg Ronge +3 more | 1998-03-24 |
| 5646328 | Process for removing by-products from diurethanes | Ludwig Deibele, Jurgen Dahmer | 1997-07-08 |