Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845266 | Process for the preparation of polyester polyols | Matthias Marx, Joachim Jaehme | 1989-07-04 |
| 4837245 | Process for the preparation of non-cellular or cellular polyurethane elastomers in the presence of a polyester polyol containing therein titanium and/or tin compounds as catalysts | Wolfgang Straehle, Gerhard G. Ramlow | 1989-06-06 |
| 4798851 | Process for the preparation of elastic, noncellular or cellular polyurethane- or polyurethane-polyurea molded articles | Frank Werner, Herbert Mueller | 1989-01-17 |