Issued Patents All Time
Showing 51–63 of 63 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4565648 | Use of carbonyl compounds, sulfonyl compounds and/or thioureas as stabilizers for solutions containing pyrocarbonic acid dialkyl esters and polyisocyanate preparations containing those esters | Wolfgang Reichmann | 1986-01-21 |
| 4546165 | Process for the production of stabilized polyisocyanates of retarded reactivity and their use in the production of polyurethanes | Gerhard Grogler, Heinrich Hess | 1985-10-08 |
| 4521338 | Process for the preparation of low molecular weight 4,4'-diphenylmethane-uretdione-diisocyanates | Gerhard Grogler | 1985-06-04 |
| 4520186 | Polyurethanes and polyurethane-ureas based on aromatic uret dione diamine adducts | Heinrich Hess, Gerhard Grogler | 1985-05-28 |
| 4510269 | Process for the production of optionally cellular polyurethanes | Hans-Albrecht Freitag | 1985-04-09 |
| 4496491 | Aromatic diisocyanates containing N,N-disubstituted sulfonamide groups and processes for their production | Gerhard Grogler, Helmut Reiff, Dieter Dieterich | 1985-01-29 |
| 4483974 | Process for the production of stabilized polyisocyanates, the polyisocyanates so-stabilized and their use in the production of polyurethanes | Gerhard Grogler, Heinrich Hess | 1984-11-20 |
| 4418159 | Process for the production of polyurethanes and a storable intermediate product for carrying out this process | Werner Rasshofer, Reiner Paul | 1983-11-29 |
| 4390640 | Process for the production of optionally-foamed polyurethanes | Werner Rasshofer, Geza Avar, Hans-Albrecht Freitag, Gerhard Grogler | 1983-06-28 |
| 4384102 | Process for the preparation of compounds having s-triazine units and epoxide groups | Werner Rasshofer, Gerhard Grogler | 1983-05-17 |
| 4377644 | Mixed anhydrides of isocyanates and carboxylic acids, mixtures thereof with carboxylic acids, and the use thereof as blowing agents for the production of cellular plastics | Gerhard Grogler, Max Mann | 1983-03-22 |
| 4360603 | Process for the preparation of compounds containing s-triazine units and isocyanate groups or isocyanate-reactive groups and the production of polyurethanes containing these fillers | Gerhard Grogler, Werner Rasshofer | 1982-11-23 |
| 4352896 | Polyol mixtures containing reactive blowing agents and use thereof for the production of foamed polyurethanes | Holger Meyborg, Jurgen Schwindt | 1982-10-05 |