| Patents for C07D 201 - Preparation, separation, purification, or stabilisation of unsubstituted lactams (2,192) |
|---|
| 11/14/2000 | US6147208 Process for simultaneously preparing caprolactam and hexamethylene diamine |
| 11/09/2000 | WO2000066561A1 Process for the preparation of caprolactam |
| 11/09/2000 | WO2000066262A1 A hydrogenation catalyst and its preparation |
| 11/08/2000 | EP1049669A1 Method for producing lactams |
| 11/08/2000 | CN1272490A Hydrofinishing method of caprolactam |
| 11/02/2000 | WO2000064871A1 Process for nylon depolymerization |
| 10/11/2000 | EP1042284A1 A process for the purification of caprolactam obtained from the depolymerization of polyamide-containing carpet |
| 10/11/2000 | CN1269789A Process for preparing caprolactam |
| 10/11/2000 | CN1269788A Use of shaped bodies as catalyst for producing caprolactam |
| 10/11/2000 | CN1269787A Moudable material which can be used as catalyst |
| 10/11/2000 | CN1269360A Process for producing epsilon-hexanolactam |
| 10/04/2000 | CN1057084C Process for prepn. of lactam |
| 09/27/2000 | EP1038867A1 Process for the purification of N-substituted lactames, with acidic macroporous cation exchange resins |
| 09/27/2000 | EP0848703B1 Derivatives of benzosulphonamides as inhibitors of the enzyme cyclo-oxygenase ii |
| 09/20/2000 | EP1036589A2 Apparatus and process for producing Epsilon-caprolactam |
| 09/14/2000 | DE19910504A1 Verfahren zur Reinigung von N-substituierten Lactamen A process for purifying N-substituted lactams |
| 09/05/2000 | CA2225381C Nitric acid hydrolysis of polyamides |
| 08/31/2000 | WO2000050394A2 A process for recovering caprolactam and steam |
| 08/30/2000 | CN1264702A Process for prodn. of hexanolactam |
| 08/29/2000 | US6111099 Heating water at 200-400 degrees c. to depolymerized nylon 6; separating insoluble (carpet) waste; solvent extraction with an alkylphenol (higher boiling) to obtain an aqueous raffinate along with caprolactam/phenol; recycling raffinate |
| 08/22/2000 | US6107508 Convergent synthesis of α-aryl-β-ketonitriles |
| 08/17/2000 | WO2000047557A1 PROCESS FOR THE PREPARATION OF ε-CAPROLACTAM |
| 08/16/2000 | EP1028109A1 Process for the preparation of epsilon-caprolactam |
| 08/16/2000 | EP1028108A1 Process for producing epsilon-caprolactam |
| 08/16/2000 | CN1263091A Preparation method of epsilon-caprolactam |
| 08/16/2000 | CN1263090A Method for preparing caprolactam to synthesize hydroxylammonium mesophosphate |
| 08/09/2000 | EP0876341B1 Process for simultaneously preparing caprolactam and hexamethylene diamine |
| 08/08/2000 | US6100396 Method for purifying lactams |
| 07/26/2000 | EP1021392A1 Processes for producing hydroxyaldehydes |
| 07/26/2000 | CN1261405A Process for preparing enantiomerically enriched N-derivatised lactams |
| 07/25/2000 | US6093788 Separating distillate e-caprolactam/water vapor mixture from concentrated extract water containing oligomers/dimers from polycaprolactam (pa-6) reactor, catalytic depolymerization with superheated steam, further distillation |
| 07/19/2000 | CN1260779A Epsilon-caprolactam composition and by products |
| 07/11/2000 | US6087494 Depolymerization of polyamides |
| 07/06/2000 | WO2000039084A1 OXIDE CATALYSTS AND PROCESS FOR PRODUCING ε-CAPROLACTAM BY USING THE SAME |
| 07/05/2000 | EP1016658A2 Process for producing E-caprolactam |
| 07/05/2000 | EP1015426A1 Mouldable materials which can be used as a catalyst |
| 07/05/2000 | EP1015425A1 Caprolactam production process |
| 07/05/2000 | EP1015424A1 Use of shaped bodies as a catalyst for the production of caprolactam |
| 06/29/2000 | WO2000037408A1 Process for producing aliphatic aldehydic acid and/or aliphatic dicarboxylic acid and catalyst for the production |
| 06/28/2000 | EP1013644A1 Method for production of hydroxylammonium phosphate in the synthesis of caprolactam |
| 06/28/2000 | EP1013643A1 Method for production of hydroxylamine sulfate in the conventional process for the synthesis of caprolactam |
| 06/24/2000 | CA2293010A1 Method for production of hydroxylammonium phosphate in the synthesis of caprolactam |
| 06/24/2000 | CA2292904A1 Method for production of hydroxylamine sulfate in the conventional process for the synthesis of caprolactam |
| 06/21/2000 | CN1256967A Process for preparing catalyst containing MFI zeolite |
| 06/20/2000 | US6077955 Preparation of lactams from aliphatic αω-dinitriles |
| 06/08/2000 | WO2000014062A8 PROCESS TO CONTINUOUSLY PREPARE AN AQUEOUS MIXTURE OF ε-CAPROLACTAM AND εCAPROLACTAM PRECURSORS |
| 06/06/2000 | US6071844 Method of producing ε-Caprolactam, MFI zeolite catalysts on whose surface symmetrically arranged OH groups are present and to a method of producing them |
| 06/02/2000 | WO2000031031A1 Method for treating lactams and method for purifying a lactam |
| 06/02/2000 | CA2351655A1 Method for treating lactams and method for purifying a lactam |
| 05/31/2000 | EP1003903A1 Process for preparing enantiomerically enriched n-derivatised lactams |
| 05/31/2000 | CN1255120A Process for purifying caprolactam |
| 05/31/2000 | CN1254711A Process for recovering useful substances from waste liquid generated in preparing process of caprolactam |
| 05/30/2000 | US6069246 Method for treating lactams |
| 05/24/2000 | EP1002577A1 Process for the preparation of catalysts based on MFI-type zeolite |
| 05/24/2000 | CN1254332A Method for producing cyclic lactams |
| 05/23/2000 | US6066490 Microorganisms that produces a hydrolase enzyme that demonstrates preferential activity |
| 05/17/2000 | CN1253546A Process for recovering caprolatam from neutralized rearrangement mixture |
| 05/10/2000 | CN1252404A Method for preparing omega-lauryl lactan |
| 05/10/2000 | CN1052223C Process for purification of a water-epsilon-caprolactam mixture |
| 05/03/2000 | CN1252054A Continuous preparation of aqueous mixture of 'epsilon'-caprolactam and its precursors |
| 05/02/2000 | US6057342 Inhibitors of trypsin-like serine protease enzymes, especially factor xa, pharmaceutical compositions containing the same, and methods of using the same as anticoagulant agents for treatment and prevention of thromboembolic disorders |
| 04/18/2000 | US6051706 Method of producing ε-caprolactam |
| 04/04/2000 | US6045703 Separating e-caprolactam from a mixture comprising e-caprolactam and octahydrophenazine by selectively adsorbing the e-caprolactam to exclusion of octahydrophenazine; removal of the nonadsorbed part; recovering high purity e-caprolactam |
| 03/30/2000 | WO2000017168A1 Method for the joint production of a cyclic lactam and a cyclic amine |
| 03/30/2000 | WO2000017160A1 Method for simultaneously producing a cyclic lactam and a cyclic amine |
| 03/30/2000 | CA2344373A1 Method for the joint production of a cyclic lactam and a cyclic amine |
| 03/30/2000 | CA2344244A1 Method for simultaneously producing a cyclic lactam and a cyclic amine |
| 03/29/2000 | EP0989118A1 Process for the preparation of lauryllactam |
| 03/29/2000 | EP0989117A1 Process for the preparation of lactames from the corresponding cycloalcanone oximes |
| 03/29/2000 | CN1248578A Processf or preparing lactan from correlated cyclo aliphatic ketoxime |
| 03/23/2000 | DE19842905A1 Simultaneous preparation of lactam and cyclic amine, useful e.g. as intermediates for plastics, pharmaceuticals or agrochemicals, by reacting diamine, aminonitrile and water over heterogeneous catalyst. |
| 03/23/2000 | DE19842900A1 Combined production of cyclic lactam and cyclic amine, e.g. caprolactam and azepane, involves gas phase reaction of aliphatic alpha,omega-diamine with water over heterogeneous catalyst |
| 03/16/2000 | WO2000014062A1 PROCESS TO CONTINUOUSLY PREPARE AN AQUEOUS MIXTURE OF ε-CAPROLACTAM AND εCAPROLACTAM PRECURSORS |
| 03/16/2000 | CA2342364A1 Process to continuously prepare an aqueous mixture of .epsilon.-caprolactam and .epsilon.caprolactam precursors |
| 03/14/2000 | US6037477 Oxidation process of ethers |
| 03/14/2000 | US6036865 Separation processes |
| 03/08/2000 | EP0984002A1 Process to continuously prepare an aqueous mixture of epsilon-caprolactam and epsilon-caprolactam precursors |
| 03/08/2000 | CN1246846A Process for preparation of epsilon-hexandactam |
| 02/23/2000 | EP0980356A1 Process for recovering caprolactam from a neutralized rearrangement mixture |
| 02/23/2000 | EP0980355A1 Method for producing cyclic lactams |
| 02/10/2000 | WO2000006540A1 Lactam dehydration method |
| 02/10/2000 | CA2338159A1 Lactam dehydration method |
| 02/08/2000 | CA2127677C 2-bromo- and 2-nitroxy derivatives of 3-bromo- and 3.3-dibromo-4-oxo-azetidines, processes for the preparation thereof and use thereof |
| 02/03/2000 | WO2000005203A1 Method for cyclizing hydrolysis of an aminonitrile compound into lactam |
| 02/03/2000 | WO2000005173A1 Method for distilling ammonia |
| 02/03/2000 | WO2000004994A1 Method for reactivating a catalyst for cyclizing hydrolysis of an aminonitrile into a lactam and use of the regenerated catalyst for making lactams |
| 02/03/2000 | CA2337327A1 Method for reactivating a catalyst for cyclizing hydrolysis of an aminonitrile into a lactam and use of the regenerated catalyst for making lactams |
| 02/03/2000 | CA2337326A1 Method for cyclizing hydrolysis of an aminonitrile compound into lactam |
| 02/02/2000 | EP0975591A1 Processes for producing epsilon caprolactams |
| 02/02/2000 | EP0975590A1 Epsilon caprolactam compositions and byproducts |
| 02/01/2000 | US6020486 Depolymerization of polyamides |
| 01/26/2000 | EP0973736A1 Process for purifying caprolactam |
| 01/26/2000 | CN1242765A Prepn. of caprolactam |
| 01/11/2000 | US6013816 Hydroformylating unsaturated c.sub.4-c.sub.12 carboxylic acid, ester, or nitrile to produce linear .omega.-formyl-carboxylic acid or linear formyl nitrile in presence of water, carbon monoxide, hydrogen and catalyst |
| 01/05/2000 | EP0968185A1 Process to continuously prepare an aqueous mixture of (e)-caprolactam and (e)-caprolactam precursors |
| 01/05/2000 | EP0968184A1 Process for the preparation of caprolactam in the absence of catalysts by contacting 6-aminocaproic acid derivatives with superheated steam |
| 01/05/2000 | CN1240425A Process to separate epsilon-caprolactam from. 6-aminocaproamide and 6-aminocaproamide oligomers |
| 01/04/2000 | US6011153 Process for the preparation of a mixture of ε-caprolactam, 6-aminocaproic acid and 6-aminocaproic amide |
| 12/29/1999 | WO1999067214A1 Method for evaporating aminonitrile |
| 12/29/1999 | EP0833809B1 Nitric acid hydrolysis of polyamides |