Issued Patents 1982
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4362864 | Process for the preparation of polyarylene sulphides | Dieter Freitag, Ludwig Bottenbruch, Josef Merten | 1982-12-07 |
| 4342681 | Use of organic silicon compounds in combination with oxetane compounds, dioxanes or tetrahydrofuranes for stabilizing and brightening polycarbonates which are free from phosphites and free from boric acid esters | Wolfgang Cohnen, Dieter Freitag | 1982-08-03 |
| 4334053 | Process for the preparation of aromatic polyesters and the use thereof for the production of injection molded articles, films and coatings | Dieter Freitag, Klaus Reinking, Harald Medem, Ludwig Bottenbruch | 1982-06-08 |
| 4331801 | Process for the preparation of polyarylene sulphides | Josef Merten | 1982-05-25 |
| 4327015 | Flame resistant, transparent polycarbonates comprising bisulfite adducts | Frank Druschke, Dieter Margotte, Wolfgang Cohnen | 1982-04-27 |
| 4316980 | Process for the preparation of tetramethylated bisphenol polycarbonates | Volker Serini, Dieter Freitag, Gerd Fengler | 1982-02-23 |