Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5210170 | Process for stabilizing plastics containing ester groups | Bernd Quiring, Thomas Munzmay, Wolfgang Henning, Eduard Mayer, Walter Meckel | 1993-05-11 |
| 4889908 | Polyethers and their use as mold release agents for plastics | Joachim Franke, Helmut Kipphardt | 1989-12-26 |
| 4762884 | Process for the production of radiation-crosslinked thermoplastic polyurethanes | Jurgen Winkler, Hermann Perrey, Herbert Heidingsfeld | 1988-08-09 |
| 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, Bernd Quiring, Hans Wagner | 1987-04-07 |
| 4639478 | Bismorpholines, a process for their preparation and their use for protection against hydrolysis | Peter Haas, James-Michael Barnes | 1987-01-27 |
| 4617387 | Bismorpholines and a process for their preparation | Peter Haas, James-Michael Barnes | 1986-10-14 |
| 4521582 | Thermoplastic polyurethanes having a high heat stability, based on naphthylene diisocyanate, their production and their use | Jurgen Winkler | 1985-06-04 |
| 4500671 | Reinforced polyurethane thermoplastic chemical materials and processes for their preparation | Wolfgang Grimm, Albert Awater, Hans Wagner, Bruno Kruger | 1985-02-19 |
| 4476253 | Process for the preparation of polyurethane elastomers using diols of the anhydro-tetritol series | Herbert Salzburg, Holger Meyborg, James-Michael Barnes | 1984-10-09 |
| 4397974 | Low-halogen-content, thermoplastic polyurethane elastomer having improved flame resistance by the addition of a 4-component additive combination, its production and its use | Wolfgang Fleige, Hans-Georg Hoppe, Hans Wagner | 1983-08-09 |
| 4371684 | Thermoplastic polyurethanes for processing in extruders and/or on calenders | Bernd Quiring, Georg Niederdellmann, Hans Wagner | 1983-02-01 |
| 4342847 | Process for the production of thermoplastic synthetic materials | Ernst Meisert, Wolfgang Grimm, Alfred Eitel, Hans Wagner, Georg Niederdellmann +1 more | 1982-08-03 |
| 4317890 | Thermoplastic synthetic material and a process for its production | Albert Awater, Wolfgang Grimm, Karl-Heinz Ott, Wolfgang Oberkirch, Hans Wagner | 1982-03-02 |
| 4286080 | Extrusion process for the preparation of polyurethane ureas | Bernd Quiring, Wolfgang Wenzel, Georg Niederdellmann, Hans Wagner | 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 | Ernst Meisert, Wolfgang Grimm, Alfred Eitel, Hans Wagner, Georg Niederdellmann +1 more | 1981-04-14 |
| 4250292 | Process for the preparation of polyurethane elastomers in which at least two reactant portions are introduced into separate positions of a screw machine | Georg Niederdellmann, Ernst Meisert, Alfred Eitel, Hans Wagner, Hans Hespe | 1981-02-10 |
| 4245081 | Process for the production of thermoplastic polyurethane elastomers | Bernd Quiring, Georg Niederdellmann, Hans Wagner | 1981-01-13 |