Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4189542 | Process for the production of foam moldings having an impervious outer skin using semi-prepolymer prepared from isocyanates such as isophorone diisocyanate | Helmut Kleimann, Holger Meyborg, Gerhard Grogler | 1980-02-19 |