Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5770671 | Process for polymerizing isocyanates | Hartmut Nefzger | 1998-06-23 |
| 5476892 | Process for conditioning and stabilizing polyols | Hans-Joachim Scholl, Hartmut Nefzger, Helmut Reiff | 1995-12-19 |
| 5210170 | Process for stabilizing plastics containing ester groups | Thomas Munzmay, Wolfgang Henning, Eduard Mayer, Walter Meckel, Wilhelm Goyert | 1993-05-11 |
| 4929674 | Mixtures of thermoplastic poly(ester) carbonates with thermoplastic polyurethanes | Werner Nouvertne, Franz-Josef Gielen, Peter Tacke, Ulrich Grigo, Christian Lindner | 1990-05-29 |
| 4826918 | Polycarbonate moulding composition with improved flow and processiblity | Hans-Jurgen Kress, Dieter Wittmann, Horst Peters, Jochen Schoeps | 1989-05-02 |
| 4656199 | Process for the production of matte, non-blocking, thin-walled molded articles from linear thermoplastic polyurethane elasotomers containing polyadducts and their use | Georg Niederdellmann, Wilhelm Goyert, Hans Wagner | 1987-04-07 |
| 4371684 | Thermoplastic polyurethanes for processing in extruders and/or on calenders | Georg Niederdellmann, Wilhelm Goyert, Hans Wagner | 1983-02-01 |
| 4342847 | Process for the production of thermoplastic synthetic materials | Wilhelm Goyert, Ernst Meisert, Wolfgang Grimm, Alfred Eitel, Hans Wagner +1 more | 1982-08-03 |
| 4336365 | Process for the continuous preparation of polyisocyanates containing uretdione groups and their use as starting components for the production of polyurethane resins | Artur Reischl, Claus Rathjen | 1982-06-22 |
| 4286080 | Extrusion process for the preparation of polyurethane ureas | Wolfgang Wenzel, Georg Niederdellmann, Hans Wagner, Wilhelm Goyert | 1981-08-25 |
| 4261946 | Process for the production of thermoplastic polymer by introducing thermoplastic polymer into an extruder and adding organic polyisocyanate and chain lengthening agent | Wilhelm Goyert, Ernst Meisert, Wolfgang Grimm, Alfred Eitel, Hans Wagner +1 more | 1981-04-14 |
| 4254176 | Novel transparent polyurethane polyurea films for lamination of glazing materials and their method of production | Hanns P. Muller, Wolfgang Oberkirch, Kuno Wagner | 1981-03-03 |
| 4245081 | Process for the production of thermoplastic polyurethane elastomers | Georg Niederdellmann, Wilhelm Goyert, Hans Wagner | 1981-01-13 |