Issued Patents All Time
Showing 101–125 of 181 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4797467 | Thermoplastic polycarbonate branched with tetra-hydroxyaryl-bis-quinoxaline | Volker Eckhardt, Hans-Rudolf Dicke | 1989-01-10 |
| 4786708 | Use of films of polycondensates | Volker Serini, Bernhard Schulte, Claus Burkhardt, Uwe Hucks, Werner Waldenrath +1 more | 1988-11-22 |
| 4782123 | Process for the preparation of copolyphosphonates of high notched impact strength | Hermann Kauth, Klaus Reinking | 1988-11-01 |
| 4762905 | Aromatic thermoplastic polyphosphonatocarbonate | Manfred Schmidt, Ludwig Bottenbruch, Werner Nouvertne | 1988-08-09 |
| 4746711 | Mixtures of aromatic polycarbonates and aromatic polyester-carbonates, and their use for the production of mouldings, films, fibres, filaments and coatings | Volker Serini, Dietrich Rathmann | 1988-05-24 |
| 4743674 | Aromatic polyesters, processes for their preparation, and their use for the preparation of molecularly reinforced polymers | Walter Heitz, Uwe Kampschulte, Ludwig Bottenbruch, Hans-Rudolf Dicke | 1988-05-10 |
| 4740554 | Thermoplastic moulding compositions based on polyphenylene oxide/polycarbonate block condensates | Hans-Jurgen Kress, Peter Tacke, Karl-Heinz Ott | 1988-04-26 |
| 4739058 | Tetra-(hydroxyaryl)-bis-quinoxalines and preparation thereof | Volker Eckhardt, Hans-Rudolf Dicke | 1988-04-19 |
| 4732967 | Polyarylene sulphide having high melt viscosity | Karsten-Josef Idel, Edgar Ostlinning, Wolfgang Alewelt | 1988-03-22 |
| 4719279 | Process for the preparation of copolyphosphonates having high toughness | Hermann Kauth, Klaus Reinking | 1988-01-12 |
| 4714746 | Process for the preparation of aromatic polyester-carbonates having improved notched impact strength, and polyester-carbonates prepared thereby and their use for the production of mouldings, films and coatings | Volker Serini, Dietrich Rathmann | 1987-12-22 |
| 4704430 | Thermoplastic moulding materials | Werner Nouvertne, Peter Tacke, Klaus G. Wilms | 1987-11-03 |
| 4701554 | Process for the preparation of polyphosphonic acid amides | Hermann Kauth, Manfred Schmidt, Udo Rudolph, Frank Kleiner | 1987-10-20 |
| 4690998 | Special epoxy resins | Bernd Wahle, Walter Uerdingen, Heinrich Heine, Manfred Blazejak | 1987-09-01 |
| 4681922 | Thermoplastic polysiloxane-polyester (carbonate) block copolymers, their preparation and use | Manfred Schmidt, Winfried Paul, Dietrich Rathmann | 1987-07-21 |
| 4668720 | Flame resistant moulding compounds based on styrene polymers | Hermann Kauth, Hubert Bosshammer, Manfred Schmidt | 1987-05-26 |
| 4661584 | Preparation of polyarylene sulphide in presence of amino carboxylic acid | Karsten-Josef Idel, Edgar Ostlinning, Wolfgang Alewelt | 1987-04-28 |
| 4654411 | High molecular weight polyesters, preparation and use thereof | Volker Serini, Bernhard Schulte, Werner Waldenrath, Uwe Hucks, Joachim Wank +1 more | 1987-03-31 |
| 4645806 | Use of certain polyphenylene oxides for the production of aromatic block polyether-poly(ester) carbonates by the interfacial process | Ludwig Bottenbruch, Klaus G. Wilms, Peter Tacke | 1987-02-24 |
| 4631336 | Process for the production of high molecular weight, optionally branched polyarylene sulphide with an ester or anhydride of a carboxylic acid | Karsten-Josef Idel, Edgar Ostlinning | 1986-12-23 |
| 4617368 | Process for the production of colorless aromatic polyester and polyester carbonates | Ludwig Bottenbruch, Uwe Hucks | 1986-10-14 |
| 4603190 | Thermotropic aromatic polyesters having high rigidity and toughness, process for the production thereof and the use thereof for the production of moulded articles, filaments, fibres and films | Hans-Rudolf Dicke, Manfred Schmidt, Aziz El-Sayed | 1986-07-29 |
| 4600753 | Two stage process for the production of aromatic polyester-carbonate | Claus Wulff, Gerhard Henes, Ludwig Bottenbruch, Peter Tacke | 1986-07-15 |
| 4600764 | Thermotropic aromatic polyesters with good rigidity and toughness, process for the production thereof and the use thereof for the production of mouldings, filaments fibres and films | Hans-Rudolf Dicke, Ludwig Bottenbruch, Aziz E. Sayed | 1986-07-15 |
| 4598144 | Process for the production of high molecular weight, optionally branched polyarylene sulphides | Edgar Ostlinning, Karsten-Josef Idel, Wolfgang Eisermann | 1986-07-01 |