Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5914377 | Method for the production of diene rubbers in the gas phase | Gerd Sylvester | 1999-06-22 |
| 5908904 | Catalyst its production and its use for the gas-phase polymerization of conjugated dienes | Gerd Sylvester | 1999-06-01 |
| 5858903 | Catalyst, its production and its use for the gas-phase polymerization of conjugated dienes | Gerd Sylvester | 1999-01-12 |
| 5221718 | Process for the preparation of copolymers containing nitrile groups based on ethylenically unsaturated monomers | Heinrich Schrage, Hans-Josef Buysch | 1993-06-22 |
| 5219976 | Process for the preparation of phenol resins using by-products of the chlorination of butadiene as reactants | Manfred Abele, Hans-Josef Buysch, Heinrich Schrage | 1993-06-15 |
| 5214100 | Use of certain phenolic resins for reinforcing rubber vulcanizates | Manfred Abele, Hans-Josef Buysch, Heinrich Schrage | 1993-05-25 |
| 5071923 | Surface-active copolymers and their use for the production of polyurethane powders | Tillmann Hassel, Hanns P. Muller, Helmut Kipphardt, Rolf Dhein | 1991-12-10 |
| 5071943 | Process for the isolation of tetrachlorobutane and for the production of phenolic resins from mixtures of chlorine-substituted hydrocarbons | Manfred Abele, Hans-Josef Buysch, Michael Happ, Werner Obrecht, Heinrich Schrage | 1991-12-10 |
| 5061756 | Process for the preparation of polyurethane powders | Tillmann Hassel, Hanns P. Muller, Helmut Kipphardt, Rolf Dhein | 1991-10-29 |
| RE31165 | Transparent moulding composition of a polycarbonate and a resin | Volker Serini, Gert Humme, Karl-Heinz Ott, Wolfgang Cohnen | 1983-03-01 |
| 4346210 | Process for the preparation of polycarbonates catalyzed by cyclic aza compounds | Wolfgang Alewelt, Dieter Margotte, Claus Wulff | 1982-08-24 |
| 4327208 | Continuous process for the hydrolytic production of polycaprolactam having a low-monomer and low-dimer content | Gunter Lehr, Uwe Hucks, Werner Nielinger, Erhard Tresper | 1982-04-27 |
| 4312642 | Method for the separate discharge of the individual phase streams of a multiple phase flow | Gunter Lehr, Karl-Dieter Lohr, Uwe Hucks | 1982-01-26 |
| 4310642 | Graft polycarbonates, their preparation and their use as moldings | Dieter Margotte, Werner Nouvertne, Dieter Neuray | 1982-01-12 |
| 4299948 | Macrocyclic polycarbonates | Kurt Weirauch, Alfred Horbach | 1981-11-10 |
| 4290977 | Process for the production of neutral phosphoric acid esters | Uwe Hucks, Claus Wulff, Erhard Tresper, Harald Selbeck | 1981-09-22 |
| 4267127 | Process for the production of phosphoric acid triesters | Harald Selbeck, Claus Wulff, Uwe Hucks, Erhard Tresper | 1981-05-12 |
| 4250297 | Transparent copolyamide from isophthalic acid reactant | Werner Nielinger, Bert Brassat | 1981-02-10 |
| 4233431 | Polycondensates containing hydroxyquinoline end groups, their use for the preparation of polymers containing metals and metal containing polycondensates | Karsten-Josef Idel, Dieter Freitag, Gunther Reiff, Hans Rudolph | 1980-11-11 |
| 4230548 | Polycarbonates with end groups containing bonds which can be crosslinked by UV light | Siegfried Adelmann, Dieter Margotte | 1980-10-28 |
| 4221645 | Polycarbonates with end groups containing double bonds which can be crosslinked by UV light | Siegfried Adelmann, Dieter Margotte, Hans J. Rosenkranz, Werner Nouvertne, Dieter Freitag | 1980-09-09 |