Issued Patents 1989
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882361 | Process for the production of polyurethane urea elastomers | Gerhard Grogler, Richard Kopp | 1989-11-21 |
| 4882411 | Process for the production of cold-setting polyurethane urea elastomers | Gerhard Grogler, Heinrich Hess, Richard Kopp | 1989-11-21 |
| 4882409 | Process for the production of heat-resistant polyurethane urea elastomers | Gerhard Grogler, Heinrich Hess | 1989-11-21 |
| 4851567 | N,N'-bis(5-isocyanatonaphthyl)urea, a process for its production, and its use | Gerhard Grogler, Richard Kopp, Heinrich Hess | 1989-07-25 |
| 4843108 | Process for the production of polyamines | Werner Rasshofer, Klaus Konig, Richard Kopp | 1989-06-27 |
| 4843107 | Process for the preparation of polyamines and their use for the preparation of polyurethanes | Werner Rasshofer, Klaus Konig, Richard Kopp | 1989-06-27 |
| 4835224 | Process for the preparation of polyamines and their use for the production of polyurethanes | Werner Rasshofer, Klaus Konig, Richard Kopp | 1989-05-30 |