Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6624278 | Process for producing thermally stable thermoplastic polyurethanes | Friedemann Muller, Wolfgang Brauer, Hans-Georg Hoppe, Hans-Georg Wussow | 2003-09-23 |
| 5908913 | Process for the continuous production of polyurethane and polyurethane urea prepolymers | Ernst Orthmann, Klaus Wulff, Peter Hoeltzenbein, Helmut Judat, Gottfried Zaby +1 more | 1999-06-01 |
| 5360885 | Process for the continuous production of polyurethane and polyurethane urea elastomers | Ernst Orthmann, Klaus Wulff, Peter Hoeltzenbein, Helmut Judat, Gottfried Zaby +1 more | 1994-11-01 |
| 5266211 | Process for precipitating polymers | Walter Breuker, Eckhard Moller, Bernhard Schleimer | 1993-11-30 |
| 5181987 | Device and process for precipitating polymers | Walter Breuker, Eckhard Moller, Bernhard Schleimer | 1993-01-26 |
| 5138072 | Process for the preparation of 5-chloro-3-chlorosulphonyl-2-thiophenecarboxylic acid esters | — | 1992-08-11 |
| 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, Bernd Quiring | 1987-04-07 |
| 4500671 | Reinforced polyurethane thermoplastic chemical materials and processes for their preparation | Wilhelm Goyert, Wolfgang Grimm, Albert Awater, Bruno Kruger | 1985-02-19 |
| 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 | Wilhelm Goyert, Wolfgang Fleige, Hans-Georg Hoppe | 1983-08-09 |
| 4371684 | Thermoplastic polyurethanes for processing in extruders and/or on calenders | Bernd Quiring, Georg Niederdellmann, Wilhelm Goyert | 1983-02-01 |
| 4342847 | Process for the production of thermoplastic synthetic materials | Wilhelm Goyert, Ernst Meisert, Wolfgang Grimm, Alfred Eitel, Georg Niederdellmann +1 more | 1982-08-03 |
| 4317890 | Thermoplastic synthetic material and a process for its production | Wilhelm Goyert, Albert Awater, Wolfgang Grimm, Karl-Heinz Ott, Wolfgang Oberkirch | 1982-03-02 |
| 4286080 | Extrusion process for the preparation of polyurethane ureas | Bernd Quiring, Wolfgang Wenzel, Georg Niederdellmann, 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, 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, Wilhelm Goyert, Ernst Meisert, Alfred Eitel, Hans Hespe | 1981-02-10 |
| 4245081 | Process for the production of thermoplastic polyurethane elastomers | Bernd Quiring, Georg Niederdellmann, Wilhelm Goyert | 1981-01-13 |