Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5959160 | Purification of p,p-bisphenolate solutions | Claus Wulff, Tony van Osselaer, Roelof Boyens, Jurgen Hinz | 1999-09-28 |
| 5785823 | Process for the purification of bisphenol | Tony Osselaer, Werner Verhoeven, Johan Vaes, Ignace Hooftman, Willy Van Herck +4 more | 1998-07-28 |
| 5756860 | Crystalline adduct of bisphenol A and bisphenol TMC | Tony van Osselaer, Claus Wulff, Jurgen Hinz | 1998-05-26 |
| 5696295 | Method for the preparation of ultra-pure bisphenol A and the use thereof | Claus Wulff, Kaspar Hallenberger, Heinrich Steude, Tony van Osselaer, Jurgen Hinz +3 more | 1997-12-09 |
| 5545764 | Process for the continuous production of high purity bisphenol A | Klaus Berg, Claus Wulff, Georg Malamet, Alfred Eitel, Tony van Osselaer +1 more | 1996-08-13 |
| 5395888 | Thermoplastically processible poly-vinylarene/polyurethane block copolymers | Joachim Franke, Peter Haas, Josef Witte | 1995-03-07 |
| 5242977 | Poly-.alpha.-olefin/polyurethane block copolymers, processes for their production and their use | Joachim Franke, Peter Haas, Josef Witte | 1993-09-07 |
| 5162434 | Thermoplastic block copolymers of vinyl or vinylidene polymer segments and segments of liquid crystalline polymers | Harald Pielartzik, Rolf-Volker Meyer, Joseph W. Witte, deceased, by Klaus G. Witte, heir | 1992-11-10 |
| 5135988 | Process for the preparation of ethylene/vinyl acetate copolymers with reduced tendency to tackiness, new ethylene/vinyl acetate copolymers and their use | Gerd Sylvester, Christian Ohm, Hugo Zimmermann, Herbert Bartl | 1992-08-04 |
| 5096966 | Polymer mixture for flexible sheets | Karl-Erwin Piejko, Hans-Eberhard Braese | 1992-03-17 |
| 4940755 | Thermoplastic moulding compositions based on polyvinyl chloride and a poly-.alpha.-olefine/polyurethane block copolymer | Lothar Meier, Maria Gartner, Joachim Franke, Christian Lindner | 1990-07-10 |
| 4937303 | Solution polymerization for the preparation of gel-free ethylene/vinyl acetate copolymers | Bernhard Wolf, Bernhard Will, Werner Obrecht, Rudolf Casper, Wolfgang Baade +2 more | 1990-06-26 |
| 4929689 | Polyolefinecarboxylic acids, their preparation and their use for preparing polyolefine-polycarbonate block copolymers | Helmut Waniczek, Gerd Sylvester, Josef Witte | 1990-05-29 |
| 4812546 | New copolymers of alpha-cyanoacrylates and acrylates, their preparation and their use | Helmut Waniczek, Christian Ohm, Josef Witte | 1989-03-14 |
| 4798873 | Polyolefinecarboxylic acids, their preparation and their use for preparing polyolefine-polycarbonate block copolymers | Helmut Waniczek, Gerd Sylvester, Josef Witte | 1989-01-17 |