Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889911 | Process for the production of fully aromatic, thermotropic polyesters and polyester carbonates | Harald Pielartzik, Rolf-Volker Meyer, Hans-Joachim Traenckner, Edgar Ostlinning | 1989-12-26 |
| 4874816 | Vinyl copolymers with grafted-on polycarbonate chains, their production and use | Ralf Dujardin, Rolf-Volker Meyer, Klaus Berg, Ulrich Grigo, Wolfgang Wehnert | 1989-10-17 |
| 4873376 | Process for the production of monomeric alkenylphenols from dihydroxydiphenylalkanes | Ralf Dujardin | 1989-10-10 |
| 4837301 | Process for the preparation of high molecular weight optionally branched polyarylenesulphides | Volker Glock, Rolf-Volker Meyer | 1989-06-06 |