Issued Patents All Time
Showing 26–50 of 77 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855504 | Process for producing higher molecular weight amino compounds having reduced monomeric amine content | Ernst Grigat, Gerhard Grogler, Heinrich Hess, Richard Kopp | 1989-08-08 |
| 4843108 | Process for the production of polyamines | Andreas Ruckes, Klaus Konig, Richard Kopp | 1989-06-27 |
| 4843107 | Process for the preparation of polyamines and their use for the preparation of polyurethanes | Andreas Ruckes, Klaus Konig, Richard Kopp | 1989-06-27 |
| 4835224 | Process for the preparation of polyamines and their use for the production of polyurethanes | Andreas Ruckes, Klaus Konig, Richard Kopp | 1989-05-30 |
| 4797320 | Composite plastic moldings and a process for their production | Richard Kopp, Gerhard Grogler, Heinrich Hess, Hermann Schafer | 1989-01-10 |
| RE32677 | Polyamines, a process for the production of polyamines and their use in the production of polyurethanes | Gerhard Grogler, Klaus Konig, Dieter Dieterich | 1988-05-24 |
| 4740531 | Polyaminohydroxyl compounds containing urethane and/or urea groups and processes for their preparation and use | — | 1988-04-26 |
| 4735970 | Process for the production of a cellular polyurethane | Claus-Dieter Sommerfeld | 1988-04-05 |
| 4732957 | Polyurethane-based reactive mass and its use for the production of coatings | Peter Schuster, Rudolf Punessen, Karl Nutzel, Richard Kopp | 1988-03-22 |
| 4732960 | Process for the production of new polyisocyanate compositions and their use for the production of plastics by the isocyanate polyaddition process | Reiner Paul, Joachim Probst | 1988-03-22 |
| 4724252 | Polyamines and a process for their production from polyisocyanates | — | 1988-02-09 |
| 4723032 | Modified polyamines and a process for their production | Dieter Dieterich | 1988-02-02 |
| 4707502 | Process for the production of urethane-modified polyisocyanate preparations, the polyisocyanate preparations obtainable by this process and their use in the production of plastics based on polyisocyanates | Otto Ganster, Brund Luckas, Ludwig Rottmaier | 1987-11-17 |
| 4703100 | Process for the production of polyisocyanates containing urea and/or biuret groups, preparations obtainable thereby and their use | Reiner Paul, Klaus Seel, Christian Weber | 1987-10-27 |
| 4677136 | Process for the production of polyisocyanate compositions containing urea and/or biuret groups, the polyisocyanate compositions obtained by this process, and their use for the production of plastics by the isocyanate polyaddition process | Reiner Paul | 1987-06-30 |
| 4665177 | Tetrahydropyrimidines, a process for their production and their use as catalysts in the production of polyurethane plastics | Gerhard Grogler, Richard Kopp | 1987-05-12 |
| 4663415 | Process for the preparation of stabilized polyamines, stabilized polyamines with retarded reactivity and their use for polyurethane production | Gerhard Grogler, Richard Kopp, Heinrich Hess | 1987-05-05 |
| 4645630 | Process for the production of microcellular or foamed moldings and compounds containing isocyanate-reactive groups suitable for carrying out this process | Hans-Joachim Meiners, Klaus Seel, Hans-Georg Wussow | 1987-02-24 |
| 4644016 | Process for the production of polyurethanes | Hans-Albrecht Freitag | 1987-02-17 |
| 4608214 | Process for the production of optionally cellular moldings | Gerhard Balle, Reiner Paul | 1986-08-26 |
| 4587322 | Process for the production of urethane-modified polyisocyanate compositions using a hydantoin having two hydroxyl alkyl substituents | Reiner Paul | 1986-05-06 |
| 4581388 | Process for the production of urethane-modified polyisocyanate using an oxyalkylated bisphenol | Richard Kopp, Reiner Paul, Klaus Seel, Otto Ganster | 1986-04-08 |
| 4578500 | Polyamines and a process for their production | Gerhard Balle | 1986-03-25 |
| 4575518 | Homogeneous storage stable salt-containing mixture | Reiner Paul | 1986-03-11 |
| 4569982 | Process for the production of polyurea-elastomers and corresponding elastomers having an idealized segment structure | Gerhard Grogler, Heinrich Hess, Richard Kopp | 1986-02-11 |