Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE33748 | Process for the preparation of polyurethane plastics using dianhydro-hexite diols | Kuno Wagner, James-Michael Barnes, Herbert Salzburg | 1991-11-19 |
| 4970342 | Polyamines and a process for the production thereof | Rudolf Fauss, Hans-Joachim Meiners, Werner Rasshofer | 1990-11-13 |
| 4587275 | Process for the preparation of polyurethane elastomers | Richard Kopp, Gerhard Grogler, Jurgen Schwindt | 1986-05-06 |
| 4564645 | Process for the production of dianhydrohexitol mixtures and the production of polymers from such mixtures | Herbert Salzburg, Manfred Hajek | 1986-01-14 |
| 4532266 | Polymer-containing polyether polyamines and a process for the production of these polyamines | Werner Rasshofer, Gerhard Balle, Dieter Dieterich | 1985-07-30 |
| 4525590 | Simplified process for the production of polyamines by the alkaline hydrolysis of compounds containing NCO-groups | Werner Rasshofer, Klaus Konig, Walter Meckel, Armin Zenner | 1985-06-25 |
| 4515923 | Polyamines and a process for their production | Rudolf Fauss, Hans-Joachim Meiners, Werner Rasshofer | 1985-05-07 |
| 4506086 | Process for the production of dianhydrohexitol mixtures and liquid mixture of dianhydrohexitols | Herbert Salzburg, Manfred Hajek | 1985-03-19 |
| 4476253 | Process for the preparation of polyurethane elastomers using diols of the anhydro-tetritol series | Herbert Salzburg, Wilhelm Goyert, James-Michael Barnes | 1984-10-09 |
| 4418160 | Polyamines and processes for the production of such polyamines and of polyurethane plastics therefrom | Werner Rasshofer, Dieter Dieterich | 1983-11-29 |
| 4408061 | Process for the preparation of 1,4-3,6-dianhydro-hexitols | Herbert Salzburg, Heinz Ziemann | 1983-10-04 |
| 4386218 | Polyamines and processes for the production of such polyamines and of polyurethane plastics therefrom | Werner Rasshofer, Dieter Dieterich | 1983-05-31 |
| 4383051 | Process for the preparation of polyurethane plastics using dianhydro-hexite diols | Kuno Wagner, James-Michael Barnes, Herbert Salzburg | 1983-05-10 |
| 4371630 | Solution of a polyurethane in a polyol and a process for using such a solution in the production of polyurethane plastics | Klaus Konig, Hans-Walter Illger, Peter Seifert | 1983-02-01 |
| 4352896 | Polyol mixtures containing reactive blowing agents and use thereof for the production of foamed polyurethanes | Richard Kopp, Jurgen Schwindt | 1982-10-05 |
| 4350781 | Process for the preparation of polymer precursors containing oxazolin-2-one rings | Werner Rasshofer, Gerhard Grogler | 1982-09-21 |
| 4348512 | Polyisocyanate reaction products of diisocyanates and s-triazine derivatives containing amino groups, and polymers therefrom | Gerhard Grogler | 1982-09-07 |
| 4320068 | Process for the production of polyisocyanates having a biuret structure | Jurgen Schwindt, Helmut Reiff, Klaus Konig | 1982-03-16 |
| 4305991 | Integral-skin polyurethane foams and process therefor | Werner Mormann, Hans-Walter Illger, Manfred Bock | 1981-12-15 |
| 4303773 | Process for the production of polyurethane urea elastomers | Otto Ganster, Hans-Joachim Meiners, Willi Eifler, Jurgen Schwindt | 1981-12-01 |
| 4298701 | Process for the production of elastic shaped articles | Christian Weber | 1981-11-03 |
| 4263408 | Process for the production of molded foams | Werner Mormann, Gerhard Grogler, Jurgen Schwindt | 1981-04-21 |
| 4263423 | Process for the preparation of polyurethane casting elastomers | Jurgen Schwindt, Gerhard Grogler, Klaus Recker | 1981-04-21 |
| 4255570 | Polyisocyanate reaction products of diisocyanates and s-triazine derivatives containing amino groups | Gerhard Grogler | 1981-03-10 |
| 4189542 | Process for the production of foam moldings having an impervious outer skin using semi-prepolymer prepared from isocyanates such as isophorone diisocyanate | Helmut Kleimann, Hans-Jurgen Lienert, Gerhard Grogler | 1980-02-19 |