Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4595748 | Process for the preparation of high molecular weight, optionally branched polyarylene sulphides | Karsten-Josef Idel | 1986-06-17 |
| 4537951 | Process for the production of optionally branched polyarylene sulfides | Karsten-Josef Idel, Wolfgang Koch, Ludwig Bottenbruch, Walter Heitz | 1985-08-27 |
| 4525579 | Process for the production of optionally branched polyarylene sulphides with polyhalogenated polyaromatic compound | Karsten-Josef Idel, Wolfgang Koch, Walter Heitz | 1985-06-25 |
| 4501884 | Process for the production of optionally branched polyarylene sulphide with piperazinone solvent | Karsten-Josef Idel | 1985-02-26 |
| 4500702 | Anhydrous preparation of polyarylene sulfide in one vessel reaction system | Karsten-Josef Idel | 1985-02-19 |
| 4487698 | Extraction of onium salts from process waters and waste waters | Karsten-Josef Idel, Dieter Freitag | 1984-12-11 |
| 4464507 | Process for the production of high molecular weight, optionally branched, polyarylene sulphides | Karsten-Josef Idel | 1984-08-07 |
| 4451644 | Process for the production of polyarylene (sulphides) having an increased thermal and chemical resistance and an improved color quality | Karsten-Josef Idel, Otto Neuner, Ludwig Bottenbruch | 1984-05-29 |
| 4424339 | Process for the preparation of polyarylene sulphides | Karsten-Josef Idel, Dieter Freitag, Ludwig Bottenbruch | 1984-01-03 |