| 9522374 |
Shell-and-tube reactor for preparing maleic anhydride |
Gerhard Olbert, Hans-Jürgen Bassler |
2016-12-20 |
| 8933277 |
Process for preparing polymethylols |
Stephan Schlitter, Stefan Rittinger, Tilman Sirch, Steffen Maas |
2015-01-13 |
| 8884076 |
Method for preparing polymethylols |
Tilman Sirch, Steffen Maas, Stefan Rittinger, Stephan Schlitter |
2014-11-11 |
| 8853465 |
Process for preparing neopentyl glycol |
Maria Guixa Guardia, Kai Stehmeier |
2014-10-07 |
| 8575401 |
Method for purifying crude polymethylols |
Tilman Sirch, Steffen Maas, Stefan Rittinger |
2013-11-05 |
| 8461356 |
Process for obtaining maleic anhydride by distillation |
Gunther Windecker, Gerd Kaibel, Thilo Buntrock, Jens Weiguny, Dany Vanden Hautte +1 more |
2013-06-11 |
| 7767865 |
Method for producing hydroxypivalaldehyde and neopentyl glycol |
Tilman Sirch, Steffen Maas, Stefan Rittinger, Stephan Schlitter |
2010-08-03 |
| 7605292 |
Method for the separation of polymeric by-products from 1,4-butynediol |
Rudolf Erich Lorenz, Rolf Pinkos, Gerd Schaefer, Thomas Danner |
2009-10-20 |
| 7598405 |
Method for the distillative processing of tetrahydrofuran |
Gunther Windecker, Alexander Weck, Markus Roesch, Rolf Pinkos, Dany Vanden Hautte |
2009-10-06 |
| 7572941 |
Method for the separation of polymeric by-products from 1,4-butynediol |
Rudolf Erich Lorenz, Rolf Pinkos, Gerd Schaefer |
2009-08-11 |
| 7538254 |
Method for the separation of polymeric by-products from 1,4-butynediol |
Rudolf Erich Lorenz, Rolf Pinkos, Gerd Schaefer, Thomas Danner |
2009-05-26 |
| 7524996 |
Method for the separation of polymeric by-products from 1,4-butynediol |
Rudolf Erich Lorenz, Rolf Pinkos, Gerd Schaefer |
2009-04-28 |
| 7462747 |
Process for preparing polyalcohols from formaldehyde having a low formic acid content |
Timan Sirch, Steffen Maas, Stefan Rittinger, Stephan Schlitter, Maria Guixa +2 more |
2008-12-09 |
| 7388116 |
Hydrogenation of methylolalkanals |
Steffen Maas, Thorsten Johann, Michael Koch, Tilman Sirch, Stephan Schlitter +2 more |
2008-06-17 |
| 5000832 |
Purification of aqueous glyoxal solutions |
Hartwig Voss, Leopold Hupfer |
1991-03-19 |
| 4990227 |
Preparation of hydroxycarboxylic esters |
Heinz Hannebaum |
1991-02-05 |
| 4702803 |
Preparation of pyrazoles |
Eckhard Stroefer |
1987-10-27 |
| 4661217 |
Preparation of carbamic acid esters |
Dieter Degner, Heinz Hannebaum |
1987-04-28 |
