Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4990687 | Preparation of 4-methyl-2-cyclohexylphenol | Alfons Klein, Helmut Fiege, Lothar Puppe | 1991-02-05 |
| 4714568 | New blowing agent combination based on azodicarbonamide, production thereof and use thereof for foaming polymers | Helmut Hurnik, Manfred Finzenhagen | 1987-12-22 |
| 4481321 | Process for increasing the ozone-resistance of a rubber with enol ethers | Dieter W. Bruck, Lothar Ruetz | 1984-11-06 |
| 4472549 | Cyclic acetals of diols, their production of their use as non-discoloring antiozonants | Ernst Roos, Lothar Ruetz | 1984-09-18 |
| 4469830 | Process for increasing the ozone-resistance of a rubber | Dieter W. Bruck, Lothar Ruetz | 1984-09-04 |
| 4427817 | Open-chain acetals or ketals as non-discoloring antiozonants for rubber | Dieter W. Bruck, Heinrich Konigshofen, Ernst Roos, Lother Ruetz | 1984-01-24 |
| 4280004 | Mixtures of azodicarbonamide and .alpha.-amidosulphones and their production and use as a blowing agent | Ernst Roos, Theo Kempermann, Manfred Abele | 1981-07-21 |
| 4263165 | Blowing agent combination comprising azodicarbonamide, zinc oxide and a benzenethiol sulphonic acid derivative | Ernst Roos, Helmut Hurnik | 1981-04-21 |