Issued Patents 1989
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888125 | Diisocyanates, a process for their production and their use in the production of polyurethane plastics | Peter Heitkamper | 1989-12-19 |
| 4843107 | Process for the preparation of polyamines and their use for the preparation of polyurethanes | Andreas Ruckes, Werner Rasshofer, Richard Kopp | 1989-06-27 |
| 4843108 | Process for the production of polyamines | Andreas Ruckes, Werner Rasshofer, Richard Kopp | 1989-06-27 |
| 4837359 | Process for the production of polyisocyanates with biuret structures | Helmut Woynar, Josef Pedain, William E. Slack | 1989-06-06 |
| 4835224 | Process for the preparation of polyamines and their use for the production of polyurethanes | Andreas Ruckes, Werner Rasshofer, Richard Kopp | 1989-05-30 |
| 4808691 | Polyether-polycarbonate diols and processes for their production and use | James-Michael Barnes | 1989-02-28 |
| 4803246 | Process for the preparation of polymers containing hydroxyl groups and their use for the production of polyurethanes | Manfred Dietrich, Josef Pedain, Peter Hohlein | 1989-02-07 |
| 4801675 | Process for the preparation of prepolymers containing isocyanate groups, the prepolymers obtainable by this process and their use as binders in one-component lacquers | Josef Pedain, Michael Sonntag | 1989-01-31 |