Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874816 | Vinyl copolymers with grafted-on polycarbonate chains, their production and use | Ralf Dujardin, Wolfgang Ebert, Rolf-Volker Meyer, Ulrich Grigo, Wolfgang Wehnert | 1989-10-17 |
| 4873314 | Process for the production of polycarbonate solutions | Karsten-Josef Idel, Ulrich Grigo | 1989-10-10 |
| 4826634 | Fluorinated alkylamidosulphonates, their preparation, their use as flame retardants, and polycarbonate moulding compositions containing them | Bernd Baasner, Ulrich Grigo | 1989-05-02 |