Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5326851 | Low-viscosity polyarylene sulfides | Burkhard Kohler, Udo Wolf, Wilfried Haese | 1994-07-05 |
| 5141976 | Mixtures of polyarylene sulphides, nitroarylmethylidene ketones, glass fibers and optionally other fillers | Burkhard Kohler, Joachim Doring, Hans-Detlef Heinz | 1992-08-25 |
| 5138031 | Linear and branched poly-p-arylene sulfide substantially free from defect structures having plural absorption maxima | Ernst-Ulrich Dorf, Gunther Weymans, Manfred Schmidt, Erich Meier | 1992-08-11 |
| 5108823 | Process for the metallization of moldings of polyarylene sulfides | Kirkor Sirinyan, Karl-Heinz Köhler, Klaus Reinking, Wolfgang Wehnert | 1992-04-28 |
| 5093397 | Mixtures of polyarylene sulphides, nitroarylketo compounds, electron rich aromatic compounds, glass fibres and optionally other fillers | Burkhard Kohler, Hans-Detlef Heinz, Joachim Doring | 1992-03-03 |
| 5068312 | Polyarylene sulfides terminated by sulfonic acid and/or sulfonic acid derivative groups, their production and use | Ernst-Ulrich Dorf, Burkhard Kohler, Wolfgang Ebert, Walter Schmitt | 1991-11-26 |
| 5066775 | Copoly arylene/alkylene sulfide | Ernst-Ulrich Dorf, Klaus Reinking, Wolfgang Jakob, Erhard Tresper | 1991-11-19 |
| 5066776 | Process for the manufacture of polyarylene sulphides | Karsten-Josef Idel, Ernst-Ulrich Dorf, Wolfgang Alewelt, Dieter Freitag | 1991-11-19 |
| 5055551 | Process for the production of high molecular weight, optionally branched polyarylene sulfides having reduced content of extractable oligomers | Manfred Schmidt, Wolfgang Arlt, Erhard Tresper | 1991-10-08 |
| 5037952 | Process for the production of high molecular weight, optionally branched polyarylene sulfides | Manfred Schmidt, Erhard Tresper, Wolfgang Alewelt, Ernst-Ulrich Dorf | 1991-08-06 |
| 5017682 | Process for the production of unbranched polyarylene sulfides of improved color quality and improved color stability | Burkhard Kohler, Rolf-Volker Meyer, Ernst-Ulrich Dorf, Manfred Schmidt | 1991-05-21 |
| 4906712 | Process for the preparation of polyarylene sulphides | Ernst-Ulrich Dorf, Hans-Rudolph Dicke, Volker Eckhardt, Joachim Genz | 1990-03-06 |