Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5247063 | Process for the purification of polyarylene sulphides | Wolfgang Alewelt, Wolfgang Eisermann, Erhard Tresper | 1993-09-21 |
| 4921935 | Preparation of polyarylene sulphides with ketone or pinacone | Ernst-Ulrich Dorf, Hans-Joachim Traenckner | 1990-05-01 |
| 4895930 | Process for isolating polyarylene sulphides | Wolfgang Alewelt, Wolfgang Eisermann, Erhard Tresper | 1990-01-23 |
| 4771120 | Polyarylene sulphide capped with monophenol compound | Wolfgang Alewelt, Wolfgang Eisermann, Wolfgang Jakob, Erhard Tresper | 1988-09-13 |
| 4734484 | Process for the isolation of polyarylene sulphide from salts contained therein | Wolfgang Alewelt, Wolfgang Eisermann, Erhard Tresper | 1988-03-29 |
| 4588809 | Process for isolating pulverulent chlorinated aliphatic polymers from their aliphatic chlorohydrocarbon solutions | Karl-Heinrich Meyer, Diez Heine, Wolfgang Eisermann | 1986-05-13 |
| 4430483 | Process for the production of water-resistant, film-forming chlorinated polymers | Hermann Perrey, Karl-Heinrich Meyer, Diez Heine, Friedrich Kowitz | 1984-02-07 |
| 4238351 | Polyarylamide, their production and their use as absorbers for ultraviolet rays | Wolfgang Jacob, Karl-Heinrich Meyer, Ludwig Bottenbruch | 1980-12-09 |