| 5683553 |
Preparation of 3-chlorophthalic anhydride |
Karl Baur, Eckhardt Brandt |
1997-11-04 |
| 5419507 |
Reel for strip-like recording substrates, in particular for photographic films |
Josef Barth |
1995-05-30 |
| 5362399 |
Removal of water from a phosgene recycle stream |
Hans Volkmar Schwarz |
1994-11-08 |
| 5360905 |
Recovery of caprolactam from oligomers and/or polymers of caprolactam |
Hugo Fuchs, Claus-Ulrich Priester, Gerald Neubauer, Josef Ritz, Michael Kopietz |
1994-11-01 |
| 5149861 |
Recovery of trialkylamines and methyl formate from mixtures obtained in the preparation of trimethylolalkanes |
Franz Merger, Peter Hettinger, Leopold Hupfer, Juergen Paetsch, Heribert Deck +1 more |
1992-09-22 |
| 5030328 |
Method of separating .gamma.-butyrolactone from mixtures containing diethyl succinate |
Rolf Fischer, Peter Stops, Rudolf Weigand |
1991-07-09 |
| 4681946 |
Preparation of nicotinamide |
Karl Baur, Volker Diehl, Peter Stops, Hans Hellbach |
1987-07-21 |
| 4320232 |
Process for conjointly preparing methyl tert.-butyl ether and obtaining isobutene |
Klaus Volkamer, Alfred Lindner, Franz Merger, Ulrich Wagner, Gerhard Sandrock +1 more |
1982-03-16 |
| 4287379 |
Process for obtaining isobutene from C.sub.4 -hydrocarbon mixtures containing isobutene |
Eckart Schubert, Alfred Lindner, Franz Merger, Klaus Volkamer, Max Strohmeyer +1 more |
1981-09-01 |
