Issued Patents All Time
Showing 1–25 of 83 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5288848 | Process for preparation of high molecular weight, optionally branched polyarylene sulphides | Karsten-Josef Idel, Wolfgang Ebert, Dieter Freitag, Rolf-Volker Meyer | 1994-02-22 |
| 5153291 | Trialkylsilyloxy-1,1-diphenyl ethylenes and polymers produced therewith | Edgar Leitz, Hans-Josef Buysch, Karl-Heinz Ott | 1992-10-06 |
| 5118786 | Process for the preparation of high molecular weight, optionally branched polyarylene sulphides | Edgar Ostlinning, Karsten-Josef Idel | 1992-06-02 |
| 5057264 | Rapidly crystallizing polyphenylene sulphide compositions | Peter Bier, Klaus Reinking, Ernhard Tresper | 1991-10-15 |
| 5045585 | Rapid-crystallizing polyphenylene sulphide compositions | Peter Bier, Klaus Reinking, Erhard Tresper | 1991-09-03 |
| 4999420 | Polymerization of cyclic aromatic oligomers with low temperature aprotic organic solvent | Edgar Leitz, Karl-Heinz Ott, Alfred K. Jung, Ulrich Grigo | 1991-03-12 |
| 4999414 | Process for the production of aromatic polyether ketones | Joachim Genz, Erhard Tresper, Karsten-Josef Idel, Volker Eckhardt | 1991-03-12 |
| 4996373 | Process for producing dihydroxydiarylalkanes | Heinrich W. Ruppert, Neil S. Isaacs, Kenneth G. Latham | 1991-02-26 |
| 4981919 | End capped thermally stable polyphenylene oxide (PPO) | Paul J. Mayska, Hans-Rudolf Dicke | 1991-01-01 |
| 4980426 | Moulding compounds of polycarbonate mixtures having a high disperse solubility | Klaus Berg, Guther Weymans, Ulrich Grigo | 1990-12-25 |
| 4966958 | Process for the preparation of aromatic polyesters | Peter Tacke, Hans-Josef Buysch, Ulrich Grigo, Wolfgang Alewelt | 1990-10-30 |
| 4956485 | Trialkylsilyloxy-1,1-diphenyl ethylenes and polymers produced therewith | Edgar Leitz, Hans-Josef Buysch, Karl-Heinz Ott | 1990-09-11 |
| 4954606 | Solid phase post polymerization condensation of thermotropic polyester imides | Hans-Rudolf Dicke, Joachim Genz, Volker Eckhardt | 1990-09-04 |
| 4954569 | Use of homopolycarbonates of 3,3'-dihydroxydiphenyl ether for modifying films of thermoplastics | Gunther Weymans, Klaus Berg, Ulrich Grigo, Karsten-Josef Idel | 1990-09-04 |
| 4948863 | Thermotropic polyester imide from N-(3-hydroxy phenyl) trimellitic acid imide | Hans-Rudolf Dicke, Joachim Genz, Volker Eckhardt | 1990-08-14 |
| 4942194 | Rapid-crystallizing polyphenylene sulphide compositions | Peter Bier, Klaus Reinking, Erhard Tresper | 1990-07-17 |
| 4937276 | Glass-fiber-reinforced stabilized polyamide molding compositions | Werner Nielinger, Heinz-Josef Fullmann, Jurgen Kirsch | 1990-06-26 |
| 4912193 | Thermotropic aromatic polyester based on p-hydroxy benzoic acid, 4,4'-dihydroxy diphenyl, terephthalic acid, and isophthalic acid | Hans-Rudolf Dicke, Volker Eckhardt | 1990-03-27 |
| 4882381 | Moulding compounds of aromatic polyesters and grafted silicone rubber | Dieter Wittmann, Hans-Jurgen Kress, Edgar Leitz, Horst Peters | 1989-11-21 |
| 4856342 | Process and device for measuring the adhesion of fibres in fibre-reinforced synthetic materials | Hans-Joachim Traenckner, Andreas Hampe, Klaus Schumacher | 1989-08-15 |
| 4835243 | Thermotropic aromatic polymers with high elongation at break, processes for their preparation and their use for the production of moulded articles, filaments, fibres and films | Volker Eckhardt, Hans-Rudolf Dicke, Erich Hammerschmidt, Frank Kleiner, Heinz U. Blank | 1989-05-30 |
| 4801677 | Thermotropic aromatic polyester with high thermal stability | Volker Eckhardt, Hans-Rudolf Dicke, Dieter Freitag, Ulrich Biskup | 1989-01-31 |
| 4780525 | Thermotropic, fully aromatic polyesters with excellent figidity and toughness, a process for their preparation and their use for the production of shaped articles, filaments, fibres and films | Volker Eckhardt, Hans-Rudolf Dicke, Aziz E. Sayed | 1988-10-25 |
| 4774273 | Perfluoroalkanesulphonic acid aryl esters as anti-drip agents in flame-repellant molding compositions based on thermoplastic aromaticpolycarbonates | Hans-Jurgen Kress, Klaus Kircher, Ulrich Koemm | 1988-09-27 |
| 4762905 | Aromatic thermoplastic polyphosphonatocarbonate | Manfred Schmidt, Dieter Freitag, Werner Nouvertne | 1988-08-09 |