Issued Patents All Time
Showing 1–25 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5306805 | Process for the preparation of polyarylene sulphides | Wolfgang Arlt, Wolfgang Alewelt, Karl-Heinrich Meyer, Manfred Schmidt, Wolfgang Eisermann | 1994-04-26 |
| 5247063 | Process for the purification of polyarylene sulphides | Wolfgang Alewelt, Franz Alfes, Wolfgang Eisermann | 1993-09-21 |
| 5234984 | Polyphenylene sulphide moulding compounds with improved electrical properties | Karl-Heinz Köhler, Wolfgang Wehnert, Klaus Kraft | 1993-08-10 |
| 5120606 | Coatings based on polyarylene sulfides | Gerwolf Quaas, Klaus Kraft, Klaus Reinking | 1992-06-09 |
| 5114791 | Two-component injection molding with polyarylene sulfides | Kurt-Rainer Stahlke, Klaus Reinking, Klaus Kraft, Axel Kaminski | 1992-05-19 |
| 5066775 | Copoly arylene/alkylene sulfide | Ernst-Ulrich Dorf, Klaus Reinking, Wolfgang Jakob, Wolfgang Russeler | 1991-11-19 |
| 5066704 | Filled thermoplasts with low shrinkage anisotropy | Wolfgang Wehnert, Klaus Reinking, Peter Bier, Klaus Kraft | 1991-11-19 |
| 5055551 | Process for the production of high molecular weight, optionally branched polyarylene sulfides having reduced content of extractable oligomers | Manfred Schmidt, Wolfgang Arlt, Wolfgang Russeler | 1991-10-08 |
| 5045585 | Rapid-crystallizing polyphenylene sulphide compositions | Peter Bier, Klaus Reinking, Ludwig Bottenbruch | 1991-09-03 |
| 5037952 | Process for the production of high molecular weight, optionally branched polyarylene sulfides | Manfred Schmidt, Wolfgang Alewelt, Ernst-Ulrich Dorf, Wolfgang Russeler | 1991-08-06 |
| 4999414 | Process for the production of aromatic polyether ketones | Joachim Genz, Karsten-Josef Idel, Ludwig Bottenbruch, Volker Eckhardt | 1991-03-12 |
| 4985175 | Elastomer-modified carbon-containing polyarylene sulfide blends | Hans-Jurgen Dziurla, Klaus Reinking, Wolfgang Wehnert | 1991-01-15 |
| 4942194 | Rapid-crystallizing polyphenylene sulphide compositions | Peter Bier, Klaus Reinking, Ludwig Bottenbruch | 1990-07-17 |
| 4920201 | Isolation of purified solid polyarylene sulfide directly from polymerization solution | Wolfgang Jakob, Wolfgang Alewelt | 1990-04-24 |
| 4895930 | Process for isolating polyarylene sulphides | Franz Alfes, Wolfgang Alewelt, Wolfgang Eisermann | 1990-01-23 |
| 4873326 | Process for the preparation of N-alkylated caprolactams | Wolfgang Jakob, Wolfgang Alewelt | 1989-10-10 |
| 4804689 | Process for holding and foaming thermoplastic polyphenylene sulphide articles and the resultant products | Paul J. Mayska | 1989-02-14 |
| 4775738 | Process for the preparation of polyether-sulphones | Paul J. Mayska | 1988-10-04 |
| 4771120 | Polyarylene sulphide capped with monophenol compound | Wolfgang Alewelt, Franz Alfes, Wolfgang Eisermann, Wolfgang Jakob | 1988-09-13 |
| 4743638 | Rapid crystallizing polyphenylene sulphide compositions | Peter Bier, Klaus Reinking, Ludwig Bottenbruch | 1988-05-10 |
| 4735977 | Rapidly crystallizing polyphenylene sulphide material containing sulfonic acid ester | Peter Bier, Klaus Reinking, Ludwig Bottenbruch | 1988-04-05 |
| 4734484 | Process for the isolation of polyarylene sulphide from salts contained therein | Franz Alfes, Wolfgang Alewelt, Wolfgang Eisermann | 1988-03-29 |
| 4728685 | Rapid-crystallizing polyphenylene sulphide compositions | Peter Bier, Klaus Reinking, Ludwig Bottenbruch | 1988-03-01 |
| 4639507 | Process for the isolation of polyarylene sulphide | Wolfgang Alewelt, Wolfgang Eisermann, Karl-Heinrich Meyer, Martin Ullrich | 1987-01-27 |
| 4460752 | Reacting polycarbonate resin with aryl chlorocarbonate to improve aging characteristics | Dieter Neuray, Dieter Margotte, Gunter Jacobs | 1984-07-17 |