| 5773622 |
Continuous process for the preparation of 4-amino-2,2,6,6-tetramethylpiperidine |
Udo Jegelka, Gerhard Bachstaedter, Stefan Frentzen, Guenter Kreilkamp |
1998-06-30 |
| 5693817 |
Solvent-free process for preparing 4-amino-2,2,6,6-tetramethylpiperidine |
Stefan Frentzen, Elmhart Neuber |
1997-12-02 |
| 5578546 |
Catalyst for preparing bis-para-aminocyclohexylmethane containing a low proportion of trans/trans isomer by hydrogenation of methylenedianiline |
Dietrich Maschmeyer |
1996-11-26 |
| 5391750 |
Process for the preparation of 4-hydroxy-2,2,6,6-tetramethylpiperidine |
Guthard Mock, Otto Hallmann |
1995-02-21 |
| 5132270 |
Ultrasound method of reactivating deactivated hydrogenation catalyts |
Gerhard Wachholz, Heinz-Werner Voges |
1992-07-21 |
| 4960959 |
Process for the manufacture of alkynediols by reaction of ketones with acetylene |
— |
1990-10-02 |
| 4912271 |
Process for the manufacture of vinyl chloride by reaction of acetylene with hydrogen chloride |
Harald Bartels, Wilhelm Droste, Herbert Deppe |
1990-03-27 |