| Patents for C07D 201 - Preparation, separation, purification, or stabilisation of unsubstituted lactams (2,192) |
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| 03/20/2003 | WO2003022811A1 Method for the production of 2-pyrrolidone |
| 03/19/2003 | CN1103334C Process for treating lactams |
| 03/12/2003 | EP1289949A1 Method for the production of caprolactam |
| 03/12/2003 | EP1289948A1 Method for purifying lactams |
| 03/12/2003 | EP1289489A2 Topical agent for dermatological use containing 4-hydroxyphenyl-alpha-d-glucopyranoside |
| 03/11/2003 | US6531595 From cyclohexanone oxime by using a zeolite or non-zeolitic material as a catalyst under gas phase reaction, regenerating catalyst with a non-oxidizing gas at a given temperature |
| 03/06/2003 | WO2003018562A1 Process for distilling alkaline caprolactam product at reduced pressure |
| 03/06/2003 | WO2003018550A1 Process for recovering caprolactam from aqueous caprolactam product using in situ prepared alkali amino caproate |
| 03/05/2003 | EP1286963A1 Method for separating ammonia from solutions containing caprolactam and ammonia |
| 02/26/2003 | EP1284962A2 Method for obtaining pure n-vinyl pyrrolidone |
| 02/26/2003 | EP1003903B1 Process for preparing enantiomerically enriched n-derivatised lactams |
| 02/12/2003 | EP0927160B1 Process for the preparation of epsilon-caprolactam |
| 02/11/2003 | CA2337321C Method for distilling ammonia |
| 02/11/2003 | CA2094947C Selective surface dealumination of zeolites and use of the surface-dealuminated zeolites |
| 02/05/2003 | EP1280769A1 Method for processing pyrollidone and n-vinyl pyrollidone residues |
| 02/05/2003 | EP1280768A1 Method for producing caprolactam from 6-aminocapronitrile |
| 02/05/2003 | EP1280767A1 Method for producing caprolactam on the basis of 6-aminocapronitrile and subsequent purification by crystallization |
| 02/05/2003 | CN1394850A Two-step dislocation method of cyclohexanone oxime with water |
| 02/05/2003 | CN1100756C Use of shaped bodies as catalyst for producing croprolactam |
| 01/29/2003 | EP1278727A1 Method for producing cyclic lactams |
| 01/29/2003 | EP1278726A1 Method for producing cyclic lactams |
| 01/22/2003 | CN1099412C Process to separate epsilon-caprolactam from 6-aminocaproamide and 6-amino caproamide oligomers |
| 01/16/2003 | WO2002057372A3 Stabilization of vinylether and vinyl lactam formulations against hydrolysis |
| 01/15/2003 | EP1274681A1 Process for producing amide compound |
| 01/07/2003 | WO2002008171A2 Method for separating ammoniac |
| 01/07/2003 | CA2415245A1 Method for separating ammoniac |
| 01/02/2003 | US20030004284 Melting, crystallizing, separation |
| 01/02/2003 | EP1268402A2 Process for preparing 6-aminocaproamide |
| 01/02/2003 | EP0934265B1 Amidinophenyl-pyrrolidines, -pyrrolines, and -isoxazolidines and derivatives thereof |
| 01/01/2003 | CN1388121A Improved low-temperature energy source utilization process in caprolactam production |
| 12/24/2002 | US6498250 Feeding nylon and one or more non-nylon components todepolymerization zone in which depolymerization of at least part of nylon is effected, resulting in a product stream and a residue, product stream containing monomers of nylon |
| 12/18/2002 | EP1114026B1 Method for simultaneously producing a cyclic lactam and a cyclic amine |
| 12/18/2002 | EP1021392B1 Processes for producing hydroxyaldehydes |
| 12/18/2002 | EP0891327B1 Recovery of epsilon-caprolactam from aqueous mixtures |
| 12/17/2002 | US6495682 Process for recovering caprolactam and steam |
| 12/17/2002 | US6495550 Substituted benzamido-pyridine derivatives for treatment of disorders mediated by potassium channels |
| 12/11/2002 | EP0938473B1 Method for treating lactams |
| 12/11/2002 | EP0937039B1 Preparation of caprolactam |
| 12/11/2002 | CN1095833C Process for prparation of epsilon-hexanolactam |
| 12/05/2002 | DE10223968A1 Purification of N-vinyl-epsilon-caprolactam, used in production of (co)polymers used in cosmetics, pharmaceuticals and food technology and for coating fiber optics, involves partial crystallization from melt |
| 12/03/2002 | US6489474 Process for producing amide compound |
| 11/28/2002 | WO2002028525A9 PROCESS FOR THE PREPARATION OF A MIXTURE OF ε-CAPROLACTAM AND/OR ε-CAPROLACTAM PRECURSORS |
| 11/20/2002 | EP1257532A1 PROCESS FOR THE PREPARATION OF $g(e)-CAPROLACTAM |
| 11/19/2002 | US6482945 Evaporating mixture of cyclohexanone oxime and a solvent by introducing mixture into a fluidized bed in which inert particles is fluidized by inert gas, gas phase beckmann rearrangement reaction using a solid catalyst |
| 11/19/2002 | US6482297 Method for distilling ammonia |
| 11/15/2002 | WO2001096294A1 Method for the production of caprolactam |
| 11/15/2002 | WO2001094308A1 Method for separating ammonia from solutions containing caprolactam and ammonia |
| 11/15/2002 | CA2409357A1 Method for the production of caprolactam |
| 11/13/2002 | CN1094124C Method for purifying lactams |
| 11/12/2002 | US6479658 Method for cyclizing hydrolysis of an aminonitrile compound into lactam |
| 11/06/2002 | CN1378522A Process for treating mixture comprising ammonium sulfate solution and aqeous lactam phase |
| 10/30/2002 | WO2001083444A1 Method for producing cyclic lactams |
| 10/30/2002 | EP1252127A1 A process for the crystallization of non-sucrose substances |
| 10/30/2002 | CA2407813A1 Method for producing cyclic lactams |
| 10/29/2002 | WO2001083443A1 Method for producing caprolactam on the basis of 6-aminocapronitrile and subsequent purification by crystallization |
| 10/29/2002 | WO2001083442A1 Method for producing caprolactam from 6-aminocapronitrile |
| 10/29/2002 | US6472540 Process for producing ε-caprolactone |
| 10/29/2002 | CA2407728A1 Method for producing caprolactam on the basis of 6-aminocapronitrile and subsequent purification by crystallization |
| 10/29/2002 | CA2407723A1 Method for producing caprolactam from 6-aminocapronitrile |
| 10/24/2002 | WO2002083635A1 PROCESS FOR THE PREPARTION OF ε-CAPROLACTAM |
| 10/23/2002 | EP1251122A1 Process for the preparation of epsilon-Caprolactam |
| 10/23/2002 | CN1375489A Method for distillating separating mixtuer mainly containing 6-amino cyanide and 1,6-dexanediamine |
| 10/22/2002 | US6469163 Method for production of hydroxylamine sulfate in the conventional process for the synthesis of caprolactam |
| 10/16/2002 | EP0874817B1 Process for depolymerizing nylon-containing waste to form caprolactam by superheated steam in the absence of catalysts |
| 10/03/2002 | WO2002076943A1 Process for the preparation of $g(e)-caprolactam |
| 10/03/2002 | WO2002076942A1 Process for producing lactam |
| 10/02/2002 | EP1245563A1 Process for the preparation of epsilon-caprolactam |
| 10/02/2002 | CN1371907A Process for oximation reaction cyclohexaone continuous feeding |
| 10/02/2002 | CN1091763C Method for preventing hydroxylamine from decomposing in inorganic solution for prparing caprolactam by using hydroxylamine phosphate oximation method |
| 09/26/2002 | WO2002074739A1 Method for the hydrolytic cyclisation of an aminonitrile compound to give a lactam |
| 09/26/2002 | CA2441812A1 Method for the hydrolytic cyclisation of an aminonitrile compound to give a lactam |
| 09/25/2002 | EP1242375A2 Method for purifying lactames |
| 09/25/2002 | EP1242369A2 Process for recovering monomeric units of a nylon from whole carpet |
| 09/25/2002 | EP0922027B1 Method for purifying lactams |
| 09/17/2002 | US6452002 Reductively aminating 5-formylvaleric acid and/or 5-formylvalerate in water with hydrogen and excess ammonia in presence of ruthenium on carrier as catalyst |
| 09/17/2002 | CA2261832C Method for purifying lactams |
| 09/12/2002 | WO2002070475A1 Process for recovering and purifying caprolactam from an organic solvent |
| 09/12/2002 | WO2002070474A1 Process for producing lactam |
| 09/10/2002 | US6448395 Countercurrent solvent extraction with water and water immiscible organic solvent |
| 09/04/2002 | EP0900187B1 Processes for producing hydroxyaldehydes |
| 08/29/2002 | US20020120154 Method for preparing lactam |
| 08/28/2002 | CN1366517A Process for producing amide compound |
| 08/22/2002 | WO2002064560A1 PROCESS FOR PREPARATION OF ε-CAPROLACTAM |
| 08/15/2002 | WO2002062754A1 METHOD FOR PRODUCING N,N'-CARBONYLBIS-$G(e)-CAPROLACTAM |
| 08/15/2002 | WO2002062295A2 Pyridine-substituted benzanilides as potassium ion channel openers |
| 08/15/2002 | CA2436461A1 Pyridine-substituted benzanilides as potassium ion channel openers |
| 08/13/2002 | US6433166 Process for producing ε-caprolactam |
| 08/08/2002 | WO2001077068A3 Process for preparing 6-aminocaproamide |
| 08/08/2002 | DE10105029A1 Verfahren zur Herstellung von N,N'-Carbonylbis-Epsilon-caprolactam A process for the preparation of N, N'-carbonylbis-epsilon-caprolactam |
| 08/06/2002 | US6429317 Indane derivatives for antipsychotic compositions |
| 08/01/2002 | WO2001090066A3 Method for obtaining pure n-vinyl pyrrolidone |
| 07/25/2002 | WO2002057372A2 Stabilization of vinylether and vinyl lactam formulations against hydrolysis |
| 07/24/2002 | EP1015425B1 Caprolactam production process |
| 07/24/2002 | CN1088060C Process for preparing epsilon-caprolactam from 6-aminocaproic acid |
| 07/18/2002 | WO2002055493A1 METHOD FOR STORING AND TRANSPORTING N-VINYL-ε-CAPROLACTAM |
| 07/17/2002 | EP1015424B1 Use of shaped bodies as a catalyst for the production of caprolactam |
| 07/11/2002 | US20020091255 Where the caprolactam is kept in the liquid phase |
| 07/11/2002 | DE10100752A1 Verfahren zur Lagerung und Transport von N-Vinyl-epsilon-caprolactam A method of storing and transporting N-vinyl-epsilon-caprolactam |
| 07/09/2002 | US6417356 Stabilization of vinylether and vinyl lactam formulations against hydrolysis |
| 07/04/2002 | WO2001091715A3 Topical agent for dermatological use containing 4-hydroxyphenyl-alpha-d-glucopyranoside |