Issued Patents All Time
Showing 1–25 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5149805 | Process for the production of monoblocked diisocyanates | Rainer Gras, Elmar Wolf, Werner Huebel, Horst Schnurbusch | 1992-09-22 |
| 5087739 | Circulation process for the production of aliphatic and cycloaliphatic diisocyanates | Gerd Bohmholdt, Peter Kirchner, Hans-Werner Michalczak | 1992-02-11 |
| 4986932 | Stabilizer system for polyolefins comprised of monocarboxylic acid esters of a piperidinol and a benzophenone or benzotriazole | Hans-Jurgen Haage, Hubert Libera, Peter Kirchner | 1991-01-22 |
| 4912210 | Process for the preparation of (cyclo)aliphatic uretediones | Werner Huebel, Karl-Heinz Schmitz | 1990-03-27 |
| 4778886 | Method of manufacturing cis-2,6-dimethylmorpholine | Horst-Wolfram Borsdorff, Lothar Broschinski, Werner Huebel, Klaus Rindtorff | 1988-10-18 |
| 4772665 | Heat- and oxidation-resistant polyurethane coatings | Werner Flakus | 1988-09-20 |
| 4668780 | Isocyanate-uretdiones and a method for their production | Werner Hubel, Elmar Wolf | 1987-05-26 |
| 4598121 | Cold-crosslinking polyurethane dispersions, manufacture and use of the same | Hans-Jurgen Haage, Horst Schnurbusch | 1986-07-01 |
| 4549991 | Process for continuous hot phosgenation of amines | Werner Hubel, Johannes Reiffer | 1985-10-29 |
| 4526971 | Process for the production of polyalkylpiperidylamines | Manfred zur Hausen, Werner Hubel, Gunter Kriebel | 1985-07-02 |
| 4518740 | Moisture-hardening varnishes with an isocyanate resin base | Werner Flakus | 1985-05-21 |
| 4500697 | Mixture of substances suitable for use as a powder varnish or binder for powder varnishes | Rainer Gras | 1985-02-19 |
| 4500698 | One-component baking enamels | Rainer Gras | 1985-02-19 |
| 4483798 | Polyaddition products containing uretidione groups and process for their preparation | Rainer Gras, Werner Hubel, Elmar Wolf, Horst Schnurbusch | 1984-11-20 |
| 4476054 | Uretidione dimer of isophorone diisocyanate and method of preparation | Werner Hubel, Elmar Wolf | 1984-10-09 |
| 4469867 | Isocyanatoisocyanurates | Werner Hubel, Elmar Wolf | 1984-09-04 |
| 4463154 | Polyurethane powder enamels free of cleavage products as well as enamel coatings produced from such powders | Rainer Gras, Horst Schnurbusch, Werner Hubel, Elmar Wolf | 1984-07-31 |
| 4454317 | Process for the trimerization of diisocyanates | Werner Hubel, Elmar Wolf | 1984-06-12 |
| 4430474 | Stoving enamel containing blocked isocyanates | Horst Schnurbusch, Rainer Gras, Elmar Wolf, Werner Hubel | 1984-02-07 |
| 4429157 | Process for the preparation of primary mono- and diamines from oxo compounds | Werner Hubel, Lothar Broschinski | 1984-01-31 |
| 4413079 | Powder enamels free of blocking agents | Rainer Gras, Horst Schnurbusch | 1983-11-01 |
| 4382555 | Device for the fast changing of the operating method of spraying units on wheels | Bruno Ucinhazska, Werner Hubel, Siegfried Brandt, Hans-Jurgen Haage | 1983-05-10 |
| 4373088 | Transparent polyamides from branched chain diamine and cycloaliphatic diamine | Werner Hubel, Siegfried Brandt, Hans-Jurgen Haage | 1983-02-08 |
| 4330657 | Process for the production of storage-stable urethane acryls | Werner Flakus, Horst Schnurbusch | 1982-05-18 |
| 4283535 | Method for the production of 2,4,6-triketohexahydrotriazines | Werner Hubel, Elmar Wolf | 1981-08-11 |