Issued Patents All Time
Showing 51–67 of 67 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4368319 | Electrically conductive cyclic polyimides | Jurgen Hocker, Hans G. Fitzky | 1983-01-11 |
| 4323687 | Process for the preparation of 1,2,4-triazolidine-3,5-dione | Ludwig Rottmaier | 1982-04-06 |
| 4298515 | Process for the preparation of polymers containing hydantoin groups | Jurgen Lewalter, Ludwig Rottmaier, Wilfried Zecher, Willi Dunwald, Bernhard Schulte | 1981-11-03 |
| 4293669 | Heat-resistant cross-linked polymers and the use thereof as binders | Ludwig Rottmaier, Jurgen Lewalter, Wilfried Zecher, Willi Dunwald | 1981-10-06 |
| 4289868 | Polyhydantoins from unsaturated carboxylic acids and polyiso(thio)cyanates | Jurgen Lewalter, Wilfried Zecher, Willi Dunwald | 1981-09-15 |
| 4288569 | Power lacquer binders and process for the preparation thereof | Ludwig Rottmaier, Rolf Dhein, Hans-Joachim Kreuder | 1981-09-08 |
| 4283546 | 1,2,4-Triglycidyl triazolidines-3,5-diones and a process for the preparation thereof | Ludwig Rottmaier | 1981-08-11 |
| 4281140 | Process for the preparation of hydantoins | Wilfried Zecher | 1981-07-28 |
| 4281095 | Coating compositions obtained by reacting amino carboxylic acids derivatives with polyisocyanates and compounds containing carboxylic groups to produce polymers containing hydantoin rings and amide groups | Willi Dunwald, Jurgen Lewalter, Ludwig Rottmaier, Bernhard Schulte, Karl-Heinrich Meyer | 1981-07-28 |
| 4269750 | Process for the preparation of polymers containing hydantoin groups | Jurgen Lewalter, Ludwig Rottmaier, Wilfried Zecher, Willi Dunwald, Bernhard Schulte | 1981-05-26 |
| 4246393 | Process for the preparation of poly(thio)hydantoins | Wilfried Zecher, Jurgen Lewalter, Willi Dunwald | 1981-01-20 |
| 4246365 | Process for the production of plastics containing isocyanurate groups and urethane groups | Rolf Wiedermann, Werner Dietrich, Wolfgang Schmitz | 1981-01-20 |
| 4212982 | Polyisocyanates with at least one hydantoin or thiohydantoin ring substituted by carboxylic acid amide groups | Jurgen Lewalter, Wilfried Zecher, Willi Dunwald | 1980-07-15 |
| 4196274 | Process for the production of hydantoins and polyhydantoin resins | Wilfried Zecher | 1980-04-01 |
| 4187365 | Process for the production of polycondensate containing cyclic imide groups | Wilfried Zecher, Werner Clarenz, Willi Dunwald | 1980-02-05 |
| 4182812 | Process for the preparation of hydantoin lacquers | Wilfried Zecher | 1980-01-08 |
| 4181789 | Polyparabanic acid derivatives and process therefor | Henning Giesecke, Jurgen Hocker | 1980-01-01 |