Issued Patents All Time
Showing 26–50 of 181 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5668204 | Stabilization of polycarbonates having high heat distortion temperatures | Helmut-Martin Meier, Uwe Westeppe, Rolf Dhein, Dieter Constant | 1997-09-16 |
| 5668232 | Process for the production of polyisoolefins | Gerhard Langstein, Michael Lanzendorfer, Karin Weiss | 1997-09-16 |
| 5512632 | Thermoplastic blends containing polyesters and polyester carbonates based on substituted cycloalkylidene bisphenols | Volker Serini, Ulrich Grigo | 1996-04-30 |
| 5416161 | Production of blend systems by the condensation of oligocarbonates in the presence of mass-polymerized ABS | Werner Nielinger, Hermann Kauth, Dieter Wittmann, Karsten-Josef Idel | 1995-05-16 |
| 5416143 | Highly flame-retardant polyamide moulding compounds | Aziz El Sayed, Edgar Ostlinning, Karsten-Josef Idel | 1995-05-16 |
| 5389712 | Difficultly flammable polyamide moulding materials | Aziz El Sayed, Edgar Ostlinning, Karsten-Josef Idel, Georg Heger | 1995-02-14 |
| 5373082 | Process for the production of thermoplastic polycarbonates | Hermann Kauth, Steffen Kuhling, Wolfgang Alewelt | 1994-12-13 |
| 5340905 | Process for the preparation of thermoplastic polycarbonates | Steffen Kuhling, Hermann Kauth, Wolfgang Alewelt | 1994-08-23 |
| 5334692 | Highly branched polyphosphonates based on melamine | Bernhard Hess, Wolfgang Schulz-Schlitte, Jurgen Kirsch, Uwe Arndt, Hans-Georg Gehrke +1 more | 1994-08-02 |
| 5326800 | Use of salts in combination with halogenated phthalimides for flameproof finishing of glass fibre-containing polycarbonate moulded members | Klaus Horn, Jurgen Kirsch, Richard Weider, Hugo Obermann, Karsten-Josef Idel | 1994-07-05 |
| 5317083 | Process for isolating polycarbonates from their solutions with tube having cross sectional contrictions | Claus Wulff, Wolfgang Alewelt, Hermann Kauth | 1994-05-31 |
| 5314985 | Molten, catalytic process for the preparation of polycarbonates | Steffen Kuhling, Wolfgang Alewelt, Hermann Kauth | 1994-05-24 |
| 5310793 | Mixtures of polyalkylene terephthalates, new polycarbonates and/or polyester-carbonates and elastomers | Karsten-Josef Idel, Gerd Fengler, Ulrich Grigo, Jurgen Kirsch, Uwe Westeppe | 1994-05-10 |
| 5300550 | Thermoplastic molding compositions | Thomas Eckel, Dieter Wittmann, Karl-Heinz Ott, Claus Wulff | 1994-04-05 |
| 5288848 | Process for preparation of high molecular weight, optionally branched polyarylene sulphides | Karsten-Josef Idel, Wolfgang Ebert, Ludwig Bottenbruch, Rolf-Volker Meyer | 1994-02-22 |
| 5269887 | Process for the purification of bisphenols | Wolfgang Jakob, Manfred Schmidt, Klaus Berg | 1993-12-14 |
| 5248763 | Isolation of poly(ester)carbonates from methylene chloride using carbon dioxide fluid | Jurgen Kirsch, Gunther Weymans | 1993-09-28 |
| 5233037 | Production of caprolactam by thermal depolymerization of polyamide 6 | Werner Nielinger, Edgar Ostlinning, Karsten-Josef Idel, Hans-Josef Buysch | 1993-08-03 |
| 5227458 | Polycarbonate from dihydroxydiphenyl cycloalkane | Uwe Westeppe, Claus Wulff, Karl-Herbert Fritsch, Carl Casser, Gunther Weymans +2 more | 1993-07-13 |
| 5210328 | Process for the preparation of substituted cycloalkylidene bisphenols | Claus Wulff, Alfred Eitel, Helmut Waldmann, Uwe Westeppe, Manfred Hajek +3 more | 1993-05-11 |
| 5194467 | Stabilization of highly heat distortion resistant polycarbonates | Helmut-Martin Meier, Uwe Westeppe, Rolf Dhein, Martin Wandel, Axel Sandquist | 1993-03-16 |
| 5191001 | Process for the production of solventless polycarbonate | Steffen Kuhlig, Ralf Pakull, Ulrich Grigo, Peter Tacke, Wolfgang Alewelt | 1993-03-02 |
| 5151452 | Purification of polycarbonate and polyester carbonate waste | Gerhard Fennhoff, Wolfgang Jakob, Manfred Ehlert | 1992-09-29 |
| 5149761 | Aromatic ether imides | Knud Reuter, Gunther Weymans, Rolf Dhein | 1992-09-22 |
| 5147700 | Molding compositions of low double refraction | Horst Bruggemann, Lothar Meier, Christian Lindner, Hans-Eberhard Braese | 1992-09-15 |