Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4826927 | Mixtures containing polymides alkenyphenols and either epoxide group-free adducts or another polyimide | Rolf Schmid, Werner Stauffer | 1989-05-02 |
| 4812538 | (Acylthiopropyl)phenols | Hans D. Lehmann | 1989-03-14 |
| 4801660 | Compositions comprising an epoxy resin and mercaptan-containing polyphenols | Karl Mechera | 1989-01-31 |