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Inventor: Durholz; Friedrich
Address: Remscheid, DE
No. of patents: 4
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 5679826 |
Process for the preparation of 2-chloroacrylonitrile |
October 21, 1997 |
| 2-Chloroacrylonitrile is prepared in a particularly advantageous and readily industrially practicable manner by chlorinating acrylonitrile and then thermally cleaving the 2,3-diehloropropionitrile formed, by chlorinating acrylonitrile in the presence of a catalyst system comprising d |
| 5571928 |
4-amino-3-hydroxy-phthalimidine, and a process for the preparation thereof |
November 5, 1996 |
| The present invention relates to 4-amino-3-hydroxy-phthalimidine, an important intermediate for the synthesis of 3-substituted 5-quinoline-carboxylic acid amides, and a process for the preparation thereof. |
| 4788011 |
Process for the preparation of chemical compounds obtained as solids from liquid starting substa |
November 29, 1988 |
| Reactions of liquid starting substances to give chemical compounds in which these chemical compounds are obtained as solids can be carried out by spraying the liquid starting substances from separate nozzles such that the liquid starting substances are mixed in the spray cones, which |
| 4680146 |
Process for the preparation of 4,4'-dinitrostilbene-2,2'-disulphonic acid salts |
July 14, 1987 |
| 4,4-40 -Dinitrostilbene-2,2'-disulphonic acid salts are prepared by the oxidation of 4-nitrotoluene-2-sulphonic acid or salts thereof in an aqueous alkaline medium, by adding potassium, calcium and/or magnesium ions during the reaction at the rate of which 4,4'-dinitrostilbene-2,2'-d |
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