Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7138478 | Process for mixing polymer melts with additives | Klemens Kohlgrüber, Günther Holdenried, Christian Kords, Thomas König | 2006-11-21 |
| 7071284 | Process for the preparation of polycarbonates | Hermann Kauth, Christian Kords | 2006-07-04 |
| 6930202 | Phosgene having low content of carbon tetrachloride | Hermann Kauth, Christian Kords | 2005-08-16 |
| 6811294 | Device and method for degassing plastics | Thomas Elsner, Christian Kords | 2004-11-02 |
| 6797837 | Process for the preparation of stabilized polycarbonate | Christian Kords, Antonio Ortiz | 2004-09-28 |
| 6780281 | Strand evaporator | Thomas Elsner, Christian Kords, Klemens Kohlgrüber | 2004-08-24 |
| 6761828 | Process for the reduction of concentration of nitrates and/or nitrogen-containing compounds by means of SO2 | Werner Verhoeven, Domien Sluyts, Gabriel Denecker | 2004-07-13 |
| 6720406 | High-purity polymer granules and method for the production thereof | Thomas Elsner, Christian Kords, Steffen Kuhling, Paul Viroux | 2004-04-13 |
| 6627040 | Device and method for removing volatile components from polymer solutions | Thomas Elsner, Christian Kords | 2003-09-30 |
| 6620906 | Method for the production of highly pure polycarbonate and ultrapure polycarbonate | Thomas Elsner, Christian Kords | 2003-09-16 |
| 6613868 | Process for producing polycarbonates | Hermann Kauth, Christian Kords | 2003-09-02 |
| 6551538 | Vacuole-free polymer granulates | Thomas Elsner, Christian Kords | 2003-04-22 |
| 6545122 | Method and device for evaporating polymer solutions of thermoplastic polymers, and a polycarbonate which can be obtained by evaporation | Thomas Elsner, Christian Kords | 2003-04-08 |
| 6534619 | Method for evaporating polymer solutions of thermoplastic polymers | Thomas Elsner, Klemens Kohlgrüber, Christian Kords | 2003-03-18 |
| 6506281 | Method for isolating polymers from solutions | Clemens Casper, Jorgen Weinschenck, Klemens Kohlgrüber, Christian Kords, Thomas Elsner | 2003-01-14 |
| 6485607 | Methods for removing volatile components from polymer solutions | Thomas Elsner, Christian Kords | 2002-11-26 |
| 6458920 | Purification of solutions containing polycarbonate | Richard Baxendell, Christian Kords, Lora Rand | 2002-10-01 |
| 5275758 | Production of ultrafine suspensions of bisphenol, sodium hydroxide and water | Claus Wulff, Reinhard Schomacker, Jurgen Kadelka, Gunther Weymans, Konrad Hable | 1994-01-04 |
| 5260418 | Washing of polycarbonates with cascading train of centrifuges | Claus Wulff, Gunther Weymans | 1993-11-09 |
| 5235026 | Continuous production of polycarbonates | Claus Wulff, Hermann Kauth, Gunther Weymans, Zoltan Kricsfalussy, Wolfgang Alewelt | 1993-08-10 |
| 5229486 | Process for isolating polymers from their solvents using liquids containing carbon dioxide | Hanns-Ingolf Paul, Rolf Treckmann, Gunther Weymans, Jurgen Kirsch, Klaus Elgeti | 1993-07-20 |
| 4913866 | Process for reducing fogging due to plasticizers in plastics | Lothar Meier, Karola Brudermanns, Otto Billinger, Rolf Kubens | 1990-04-03 |
| 4348542 | Process for the production of mixtures of alkylated aromatic hydroxy compounds | Volker Serini, Rainer Neumann, Gerhard Friedhofen, Dieter Freitag, Hans-Helmut Schwarz | 1982-09-07 |
| 4319053 | Process for the preparation of 4,4'-dihydroxy-3,3',5,5'-tetraalkyl-diphenylalkanes | Gunther Jeromin, Hans-Helmut Schwarz, Gerhard Friedhofen | 1982-03-09 |