Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5219976 | Process for the preparation of phenol resins using by-products of the chlorination of butadiene as reactants | Hans-Josef Buysch, Heinrich Schrage, Hugo Vernaleken | 1993-06-15 |
| 5214100 | Use of certain phenolic resins for reinforcing rubber vulcanizates | Hans-Josef Buysch, Heinrich Schrage, Hugo Vernaleken | 1993-05-25 |
| 5071943 | Process for the isolation of tetrachlorobutane and for the production of phenolic resins from mixtures of chlorine-substituted hydrocarbons | Hans-Josef Buysch, Michael Happ, Werner Obrecht, Heinrich Schrage, Hugo Vernaleken | 1991-12-10 |
| 4745172 | Phenolic resins using polyamines and polyethers in their production | Thomas Scholl, Reinhard Preuss, Hermann Fries, Theo Kempermann | 1988-05-17 |
| 4280004 | Mixtures of azodicarbonamide and .alpha.-amidosulphones and their production and use as a blowing agent | Werner Jeblick, Ernst Roos, Theo Kempermann | 1981-07-21 |