| 6828468 |
Preparation of higher &agr;, &bgr;-unsaturated alcohols |
Andreas Ansmann, Jochem Henkelmann, Alois Kindler, Heinz Etzrodt, Carsten Oost +5 more |
2004-12-07 |
| 6554965 |
Rectification column for isolating pure substances from high boiling air-and/or temperature sensitive substances |
Horst Hartmann, Wolfram Burst, Wulf Kaiser, Harald Laas, Paul Grafen +1 more |
2003-04-29 |
| 6365790 |
Preparation of C10-C30-alkenes by partial hydrogenation of alkynes over fixed-bed supported palladium catalysts |
Klaus Reimer, Gerd Kaibel, Ulrich Kammel, Franz Josef Brocker, Andreas Ansmann +4 more |
2002-04-02 |
| 6329554 |
Continuous preparation of unsaturated ketones |
Carsten Oost, Manfred Stroezel, Heinz Etzrodt, Dietmar Weller, Klaus Reimer +2 more |
2001-12-11 |
| 6300521 |
Process for preparing oxoisophorone |
Martin Klatt, Thomas Muller |
2001-10-09 |
| 6297404 |
Process for preparing oxoisophorone using additives |
Martin Klatt, Thomas Muller |
2001-10-02 |
| 6111117 |
Process for isolation of pure substances from mixtures of high-boiling air and/or temperature-sensitive substances which require a high separation efficiency by rectification under medium vacuum, and columns suitable for this process |
Horst Hartmann, Wolfram Burst, Wulf Kaiser, Harald Laas, Paul Grafen +1 more |
2000-08-29 |
| 6096907 |
Process for preparing chromanol derivatives |
Kai-Uwe Baldenius, Hagen Jaedicke, Detlef Ruff, Carsten Siedenbiedel, Rainer Stürmer |
2000-08-01 |
| 6051741 |
Preparation of .gamma.,.delta.-unsaturated ketones by the Carroll reaction, novel catalysts therefor and the preparation thereof |
Heinz Etzrodt, Dietmar Weller, Carsten Oost, Hagen Jaedicke, Manfred Stroezel +2 more |
2000-04-18 |
| 6005122 |
Preparation of .alpha.-tocopherol or .alpha.-tocopheryl acetate by reacting trimethylhydroquinone and phytol or isophytol, with recycling of the zinc halide condensation catalyst |
Kai-Uwe Baldenius, Wulf Kaiser, Harald Laas, Bernhard Schulz, Peter D. Schmitt +1 more |
1999-12-21 |
| 5950454 |
Cloth or cloth-like packing which is subject to low pressure losses and has an ordered structure for use in material-exchange columns and rectification method using such packing |
Wolfram Burst, Horst Hartmann, Wulf Kaiser, Harald Laas, Paul Grafen +1 more |
1999-09-14 |
| 5041572 |
Preparation of 2,3,5-trimethyl-p-benzoquinone |
Ulrich Hoercher, Barbara Jessel, Paul Grafen, Harald Laas |
1991-08-20 |
