Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7205430 | Production of di- and polyisocyanates of the diphenylmethane series with defined acidity | Heinz Muller, Robert Vieler, Ralf Echterhoff | 2007-04-17 |
| 7038002 | Production of mixtures of diisocyanates and polyisocyanates from the diphenylmethane series with high contents of 4,4′-methylenediphenyl diisocyanate and 2,4′-methylenediphenyl diisocyanate | Hans-Georg Pirkl, Robert Vieler, Ralf Echterhoff | 2006-05-02 |
| 6020386 | Process for the production of hydroxyfunctional compounds from (polyurethane) polyurea waste | Thomas Munzmay, Walter Meckel, Hartmut Nefzger, Werner Rasshofer, Karl-Heinz Dorner +1 more | 2000-02-01 |
| 5834579 | Tertiary amines having carbonate and urethane groups | Klaus Konig, Josef Sanders | 1998-11-10 |
| 5760098 | Process for producing low-emission polyurethane moldings and composite bodies and their use | Peter Haas | 1998-06-02 |
| 5716564 | Process for the production of composite sheet bodies which are suitable as self-supporting components in automobiles | Hans Kath, Klaus-Werner Huland | 1998-02-10 |
| 5705672 | Tertiary amines having carbonate and urethane groups | Klaus Konig, Josef Sanders | 1998-01-06 |
| 5482979 | Compounds containing tertiary amino groups, a process for their production and their use as catalysts | Josef Sanders, Klaus Konig | 1996-01-09 |
| 5445879 | Process for the preparation of composite bodies | Dirk Wegener, Hartwig Grammes | 1995-08-29 |
| 5416125 | Process for the production of semirigid foams containing urethane groups with improved flow properties | Peter Gansen | 1995-05-16 |
| 5416130 | Process for the production of polyurethane foams | Heinz Eickhaus, Gerd Steinert | 1995-05-16 |
| 5356945 | Reactive polyurethanes | Joachim Werner, Walter Meckel, Armin Zenner, Wolfgang Pätzold | 1994-10-18 |
| 5350781 | Process for the production of polyurethane foams | Hartwig Grammes, Dirk Wegener, Manuel KAISER | 1994-09-27 |
| 5210127 | Free-flowing, thermoplastically processible and post-crosslinkable polyurethane powders | Joachim Werner, Walter Meckel, Dirk Wegener, Werner Rasshofer, James W. Rosthauser | 1993-05-11 |