Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6297342 | Method and mixing head for producing a reaction mixture from an isocyanate and a higher-viscous polyol formulation | Klaus Schulte, Kurt Krippl, Wolfgang Friederichs, Uwe Kunzel | 2001-10-02 |
| 4874797 | Oligourea polyols, polyether polyols produced from them and the use of these polyols in the isocyanate polyaddition process | Peter Haas, Claus-Dieter Sommerfeld | 1989-10-17 |
| 4681903 | Polyester polyols, a process for their production and their use in the isocyanate polyaddition process | Peter Haas, Claus-Dieter Sommerfeld, Manfred Giersig, Rolf Wiedermann | 1987-07-21 |