| STRAITMARK HOLDING AG Patent applications |
| Patent application number | Title | Published |
|---|
| 20120136171 | METHOD FOR THE MANUFACTURE OFAMINO ALKYLENE PHOSPHONIC ACIDS - A method for the manufacture of aminoalkylene phosphonic acids broadly is disclosed. In the essence, an amine corresponding to a specific formula is reacted in aqueous medium with phosphorous acid and formaldehyde to thereby yield a medium insoluble reaction product. The insoluble product formed i.e. the aminoalkylene phosphonic acid can be separated, optionally washed, and recovered. This process yields high purity and selectivity reaction products. The excess phosphonic acid can be recycled into the processing sequence. | 05-31-2012 |
| 20120130120 | METHOD FOR THE MANUFACTURE OF PHOSPHONOALKYL IMINODIACETIC ACIDS - An improved method for the manufacture of phosphonoalkyl iminodiacetic acid (PAIDA) is disclosed. The iminodiacetic acid starting material is reacted with a considerable amount, in excess of stoichiometric requirements, of phosphorous acid to thereby yield a reaction medium insoluble reaction product which can be separated from the reaction medium. In a particularly preferred approach, the phosphorous acid is prepared in situ starting from liquid P | 05-24-2012 |
| 20120130109 | PROCESS FOR THE MANUFACTURE OF DIALKYLPHOSPHITES - A process for the manufacture of dialkyl phosphites is disclosed. In detail, dialkyl phosphites are prepared starting from P | 05-24-2012 |
| 20110280783 | PROCESS FOR THE MANUFACTURE OF P406 - The invention relates to a process for the production of P | 11-17-2011 |
| 20110264267 | PROCESS FOR THE MANUFACTURE OF P4O6 WITH IMPROVED YIELD - A process for the production of a reaction product consisting essentially of P | 10-27-2011 |
| 20110118502 | METHOD FOR THE MANUFACTURE OF AMINOALKYLENE PHOSPHONIC ACID - A method for the manufacture of amino alkylene phosphonic acids is disclosed. Pure P | 05-19-2011 |
| 20110085959 | METHOD FOR THE MANUFACTURE OF CONCENTRATED PHOSPHORUS ACID - A method for the manufacture of concentrated phosphorous acid starting from pure P | 04-14-2011 |
| 20110008231 | PROCESS FOR THE MANUFACTURE OF P406 - The invention relates to a process for the production of P | 01-13-2011 |
