Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5132388 | Process of preparing polyimides from dianhydride and diisocyanate in the presence of water, solvent and alkali metal hydroxide | Sigrid Seidl, Klaus Weinrotter | 1992-07-21 |
| 5066760 | Mixed polyimides and process for preparing them | Sigrid Seidl, Klaus Weinrotter | 1991-11-19 |