Issued Patents All Time
Showing 51–75 of 89 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6797800 | Method of dimerizing isophorone diisocyanate | Reinhard Halpaap, Frank Richter, Jürgen Köcher | 2004-09-28 |
| 6777523 | Highly functional polyisocyanate mixtures which are dispersible in water | Martin Brahm, Reinhard Halpaap | 2004-08-17 |
| 6767958 | Modified polyisocyanates | Reinhard Halpaap | 2004-07-27 |
| 6590098 | Method of preparing aliphatic polyisocyanates with uretdione, isocyanurate and iminooxadiazindione structures | Frank Richter, Reinhard Halpaap, Jürgen Köcher | 2003-07-08 |
| 6583215 | Aqueous 2-component PU systems | Joachim Probst, Erhard Luhmann, Horst Clemens, Wolfgang Kremer, Jurgen Meixner | 2003-06-24 |
| 6444778 | Process for the production of uretdione polyisocyanates with improved monomer stability | Reinhard Halpaap, Dieter Mager | 2002-09-03 |
| 6426414 | Polyether-modified polyisocyanate mixtures having improved dispersibility in water | Reinhard Halpaap, Christian Wamprecht | 2002-07-30 |
| 6423777 | Powder coating cross-linking agents of high functionality which contain uretdione groups and free isocyanate groups | Ulrich Freudenberg, Reinhard Halpaap, Michael Grahl | 2002-07-23 |
| 6420478 | Binder compositions and their use in aqueous coating and adhesive compositions | Christoph Irle, Wolfgang Kremer, Rolf Roschu, Erhard Luhmann | 2002-07-16 |
| 6420508 | Light-fast polyisocyanates having good solubility in non-polar solvents | Karsten Danielmeier, Lutz Schmalstieg, Harald Mertes, Reinhard Jahn | 2002-07-16 |
| 6376602 | Coating compositions, a process for their production and their use for coating water-resistant substrates | Joachim Probst, Werner Kubitza, Rolf Roschu | 2002-04-23 |
| 6297343 | Powder coating crosslinking agents containing uretdione groups and free isocyanate | Ulrich Freudenberg, Reinhard Halpaap, Michael Grahl | 2001-10-02 |
| 6204323 | Aqueous two-component polyurethane coating compositions | Christian Wamprecht | 2001-03-20 |
| 6143132 | Process for imparting wet strength to paper | Harro Traubel, Helmut Reiff, Joachim Konig, Jurgen Reiners, Harald Faika | 2000-11-07 |
| 6051634 | Water-dispersible or water-soluble polyurethanes as additives for building materials | Jan Mazanek, Dietbert Knofel, Karl-Georg Bottger, Anke Reinschmidt | 2000-04-18 |
| 6043332 | Process for the production of light-colored uretdione polyisocyanates | Reinhard Halpaap, Hans-Ulrich Meier-Westhues, Ulrich Freudenberg | 2000-03-28 |
| 6007619 | Use of nonionic, water-dispersible polyisocyanates as concrete additives | Martin Brahm, Jan Mazanek, Hermann Kober, Manfred Schonfelder, Dietbert Knofel +2 more | 1999-12-28 |
| 5985986 | Process for the preparation of coatings from moisture-curing coating compositions | Werner Kubitza, Rolf Roschu, Ferdinand Zollner | 1999-11-16 |
| 5925711 | Polyamines and their use in aqueous coating compositions | Christian Wamprecht, Jurgen Meixner, Josef Pedain | 1999-07-20 |
| 5847044 | Polyurethane powder coating compositions which have a low stoving temperature | Hans-Ulrich Meier-Westhues, Reinhard Halpaap, Ulrich Freudenberg, Hans-Peter Klee | 1998-12-08 |
| 5811190 | Matt polyurethane powder coatings and their use for coating heat resistant substrates | Hans-Ulrich Meier-Westhues, Reinhard Halpaap, Ulrich Freudenberg, Hans-Peter Klee | 1998-09-22 |
| 5786419 | Powder coating composition and its use for the preparation of matte coatings | Hans-Ulrich Meier-Westhues, Wolfgang Schultz, Walter Schafer, Hans-Peter Klee | 1998-07-28 |
| 5750629 | Uretdione diisocyanates and a process for their production | Reinhard Halpaap, Josef Pedain, Klaus Konig | 1998-05-12 |
| 5739249 | Chlorine-free multifunctional resins for paper finishing | Jurgen Reiners, Joachim Konig, Helmut Reiff, Joachim Probst, Bruno Bomer +3 more | 1998-04-14 |
| 5731396 | Water dispersible polyisocyanate mixtures | Martin Brahm, Reinhard Halpaap | 1998-03-24 |