Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6930163 | Process for the continuous preparation of thermoplastically processable polyurethanes with improved softening properties | Wolfgang Brauer, Wolfgang Kaufhold, Friedemann Muller, Jurgen Winkler, Wolfgang Rohrig +1 more | 2005-08-16 |
| 6930162 | Continuous preparation of thermoplastically processable polyurethanes | Wolfgang Brauer, Henricus Peerlings, Ludwig Trabert | 2005-08-16 |
| 6790916 | Process for the preparation of soft, low-shrinkage, thermoplastic polyurethane elastomers which can be easily released from the mold | Wolfgang Brauer, Hans-Georg Hoppe, Hans-Georg Wussow, Eva Brigitte Eggeling, Wolfgang Rohrig | 2004-09-14 |
| 6518389 | Aliphatic thermoplastic polyurethanes, processes for their preparation and their use | Wolfgang Kaufhold, Hans-Georg Hoppe, Bernhard Schulte, Henricus Peerlings | 2003-02-11 |
| 6420510 | Aliphatic, low-emission thermoplastic polyurethane molding materials suitable for sintering | Wolfgang Kaufhold, Hans-Georg Hoppe, Rainer Ohlinger, Michael Kalbe | 2002-07-16 |
| 6355762 | Process for the continuous preparation of melt processable polyurethanes with improved softening behaviour | Wolfgang Kaufhold, Wolfgang Brauer, Ulrich Liesenfelder, Wolfgang Rohrig, Hans-Georg Hoppe | 2002-03-12 |
| 6294637 | Continuous preparation of melt-processable polyurethane in a twin screw extruder | Wolfgang Brauer, Friedemann Muller, Jurgen Winkler | 2001-09-25 |
| 5981655 | Process for preparing TPU molding compositions | Willi Meister, Bernhard Schulte, Wolfgang Brauer, Friedemann Muller, Hans-Georg Hoppe +2 more | 1999-11-09 |
| 5942593 | Cycloaliphatic thermoplastic polyurethane elastomers | Heinz Pudleiner, Rolf Dhein, Herbert Hugl, Hanns P. Muller, Hans-Georg Hoppe | 1999-08-24 |
| 5936018 | Melt-processable polyurethanes containing special wax mixtures | Friedemann Muller, Wolfgang Brauer, Hans-Georg Hoppe, Willi Meister, Jurgen Winkler +2 more | 1999-08-10 |
| 5908913 | Process for the continuous production of polyurethane and polyurethane urea prepolymers | Ernst Orthmann, Klaus Wulff, Peter Hoeltzenbein, Helmut Judat, Hans Wagner +1 more | 1999-06-01 |
| 5905133 | Process for the continuous production of thermoplastically processable polyurethanes having improved processing behavior | Friedemann Muller, Wolfgang Brauer, Wolfgang Rohrig, Hans-Georg Hoppe, Jurgen Winkler | 1999-05-18 |
| 5795948 | Multistage process for production of thermoplastic polyurethane elastomers | Wolfgang Brauer, Friedemann Muller, Willi Meister | 1998-08-18 |
| 5760133 | Process for preparing TPU molding compositions | Willi Meister, Bernhard Schulte, Wolfgang Brauer, Friedemann Muller, Hans-Georg Hoppe +2 more | 1998-06-02 |
| 5696205 | Process for preparing TPU molding compositions | Friedemann Muller, Wolfgang Brauer, Hans-Georg Hoppe, Hans-Georg Wussow, Willi Meister +2 more | 1997-12-09 |
| 5567791 | Process for the continuous production of thermoplastic polyurethane elastomers | Wolfgang Br auer, Friedemann M uller, Bernhard Schulte, J urgen Winkler | 1996-10-22 |
| 5545707 | Multistage process for producing thermoplastic polyurethane elastomers | Wolfgang Brauer, Friedemann Muller, Willi Meister | 1996-08-13 |
| 5536781 | Process for the preparation of plastics containing thermoplastic polyurethanes | Willi Meister, Jurgen Winkler | 1996-07-16 |
| 5455312 | Process for the preparation of plastics containing thermoplastic polyurethanes | Willi Meister, Jurgen Winkler | 1995-10-03 |
| 5360885 | Process for the continuous production of polyurethane and polyurethane urea elastomers | Ernst Orthmann, Klaus Wulff, Peter Hoeltzenbein, Helmut Judat, Hans Wagner +1 more | 1994-11-01 |
| 4762884 | Process for the production of radiation-crosslinked thermoplastic polyurethanes | Wilhelm Goyert, Jurgen Winkler, Hermann Perrey | 1988-08-09 |