Issued Patents All Time
Showing 101–125 of 139 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4657940 | 4,4'-diisocyanto-phenylbenzylether, a process for the preparation thereof and use in the production of polyurethane plastics | Peter Heitkamper | 1987-04-14 |
| 4656243 | Polyester polyols and their use as polyol component in two-component polyurethane lacquers | Josef Pedain, Manfred Schonfelder | 1987-04-07 |
| 4656223 | Process for the production of modified polyisocyanates, the compounds obtainable by this process and their use in polyurethane lacquers | Josef Pedain, Helmut Woynar | 1987-04-07 |
| 4625052 | Process for the production of polyisocyanates which have a biuret structure | Josef Pedain, Helmut Woynar | 1986-11-25 |
| 4621104 | Process for the production of liquid bromine-containing alkoxylation products | Manfred Dietrich, Manfred Schmidt, Rolf Wiedermann | 1986-11-04 |
| 4613686 | Process for the preparation of polyisocyanates with biuret structure | Josef Pedain, Helmut Woynar | 1986-09-23 |
| 4609682 | Process for the production of moldings | Christian Weber, Manfred Schmidt | 1986-09-02 |
| 4597910 | Bis-(4-isocyanatophenoxy)-alkanes and a process for the production thereof | Peter Heitkamper | 1986-07-01 |
| 4594441 | Process for the preparation of urethanes | Kurt Findeisen, Rudolf Fauss, Peter Heitkamper | 1986-06-10 |
| 4540720 | Polyamines, a process for the production of polyamines and their use in the production of polyurethanes | Werner Rasshofer, Gerhard Grogler, Dieter Dieterich | 1985-09-10 |
| 4525590 | Simplified process for the production of polyamines by the alkaline hydrolysis of compounds containing NCO-groups | Werner Rasshofer, Holger Meyborg, Walter Meckel, Armin Zenner | 1985-06-25 |
| 4446293 | Low-solvent, thermosetting reactive polyurethane coating composition, a process for its production and its use in direct and reverse coating processes | Eberhard Konig, Wilhelm Thoma, Josef Pedain | 1984-05-01 |
| 4433010 | Process for preparing glass constructions | Josef Pedain, Wolfgang Wellner, Hermann Gruber | 1984-02-21 |
| 4430505 | Process for the preparation of N,O-disubstituted urethanes useful for the preparation of isocyanates | Peter Heitkamper, Kurt Findeisen, Rudolf Fauss, Rudolf Sundermann | 1984-02-07 |
| 4427798 | Solutions of oligo-urethane ethers in polyether polyols and their use in a process for the production of polyurethane foams | Gernot Becker, Peter Seifert | 1984-01-24 |
| 4400331 | Dialkoxy-phosphonyl-N-alkyl-formic acid amides | Peter Haas, Heinz Muller, Peter Seifert, Kuno Wagner, Kurt Findeisen | 1983-08-23 |
| 4388238 | Process for the preparation of N,O-disubstituted urethanes suitable as a starting material for the preparation of isocyanates | Peter Heitkamper, Rudolf Fauss, Kurt Findeisen | 1983-06-14 |
| 4388246 | Process for the preparation of polyisocyanates | Rudolf Sundermann, Theodor Engbert, Gernot Becker, Gunther Hammen | 1983-06-14 |
| 4386033 | Process for the continuous thermal cleavage of carbamic acid esters and preparation of isocyanates from the products thereof | Peter Heitkamper | 1983-05-31 |
| 4373080 | Polyisocyanates, preparation and use thereof | Wolfgang Reichmann, Manfred Schonfelder | 1983-02-08 |
| 4371630 | Solution of a polyurethane in a polyol and a process for using such a solution in the production of polyurethane plastics | Hans-Walter Illger, Peter Seifert, Holger Meyborg | 1983-02-01 |
| 4340712 | Process for the preparation of polyisocyanates containing biuret and/or higher polyuret groups and use thereof as synthesis component in the preparation of polyurethane plastics | Wolfgang Reichmann, Manfred Schonfelder | 1982-07-20 |
| 4338431 | Process for the preparation of neopentyl glycol polyesters and co-polyesters | Wolfgang Reichmann, Manfred Schonfelder | 1982-07-06 |
| 4328321 | Dialkoxy-phosphonyl-N-alkyl-formic acid amides and their use as additives for the production of polyurethane foams which are capable of being flame laminated and high frequency welded | Peter Haas, Heinz Muller, Peter Seifert, Kuno Wagner, Kurt Findeisen | 1982-05-04 |
| 4320068 | Process for the production of polyisocyanates having a biuret structure | Jurgen Schwindt, Holger Meyborg, Helmut Reiff | 1982-03-16 |