| Patent application number | Description | Published |
|---|
| 20080262263 | Method For Purifing Residues Containing Isocyanates - The present invention comprises a process for purifying isocyanate-comprising residues. | 10-23-2008 |
| 20090275775 | METHOD FOR PRODUCING ISOCYANATES - The invention relates to a multistage process for the continuous preparation of organic, distillable isocyanates, preferably diisocyanates, particularly preferably aliphatic or cycloaliphatic diisocyanates, by reaction of the corresponding organic amines with urea and alcohols to liberate ammonia and form low molecular weight monomeric urethanes and thermal dissociation of the latter, in which by-products formed are at least partly utilized. | 11-05-2009 |
| 20100217035 | PROCESS FOR PREPARING ISOCYANATES - The present invention relates to a process for preparing diisocyanates from diamines and phosgene in the gas phase. | 08-26-2010 |
| 20100274046 | METHOD FOR PRODUCING ISOCYANATES - The present invention relates to a multiple-stage process for the continuous preparation of organic, distillable polyisocyanates, preferably diisocyanates, more preferably aliphatic or cycloaliphatic diisocyanates, by reaction of the corresponding organic poly-amines with ureas to form low-molecular monomeric polyureas, and the thermal decomposition thereof. | 10-28-2010 |
