| Patents for C07D 201 - Preparation, separation, purification, or stabilisation of unsubstituted lactams (2,192) |
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| 12/02/1998 | EP0880558A1 Combinatorial process for preparing substituted indane libraries |
| 11/18/1998 | EP0878458A1 Oxidation process of ethers |
| 11/12/1998 | WO1998050355A1 Method for producing cyclic lactams |
| 11/12/1998 | CA2288336A1 Method for producing cyclic lactams |
| 11/11/1998 | EP0876341A1 Process for simultaneously preparing caprolactam and hexamethylene diamine |
| 11/05/1998 | WO1998049140A1 Process for recovering caprolactam from a neutralized rearrangement mixture |
| 11/05/1998 | DE19718706A1 Verfahren zur Herstellung cyclischer Lactame A process for preparing cyclic lactams |
| 11/05/1998 | CA2288156A1 Process for recovering caprolactam from a neutralized rearrangement mixture |
| 11/04/1998 | EP0875504A1 Depolymerization of polyamides |
| 11/04/1998 | EP0874817A1 Process for depolymerizing nylon-containing waste to form caprolactam by superheated steam in the absence of catalysts |
| 11/04/1998 | EP0874625A1 Indane derivatives for antipsychotic compositions |
| 11/01/1998 | CA2236116A1 Depolymerization of polyamides |
| 10/22/1998 | WO1998046565A1 Processes for producing epsilon caprolactams |
| 10/22/1998 | WO1998046564A1 Epsilon caprolactam compositions and byproducts |
| 10/22/1998 | CA2286071A1 Epsilon caprolactam compositions and byproducts |
| 10/22/1998 | CA2285745A1 Processes for producing epsilon caprolactams |
| 10/14/1998 | CN1196048A Process for recovery of caprolactam from waste containing nylon |
| 10/13/1998 | US5821553 Controlling pyrolysis of a complex waste stream of plastics to convert high value monomers or other chemicals to minimize disposal requierments for non-biodegradable materials and conserving nonbiodegradable resources |
| 10/06/1998 | US5817883 Processes for producing hydroxyaldehydes |
| 09/29/1998 | US5814508 Preparation of lactams from aliphatic α,ω-dinitriles |
| 09/24/1998 | WO1998041502A1 Process for purifying caprolactam |
| 09/24/1998 | CA2283749A1 Process for purifying caprolactam |
| 09/15/1998 | US5808055 Copper catalyzed process for producing 4-substituted azetidinone derivatives |
| 08/27/1998 | WO1998037063A1 Process for the preparation of caprolactam in the absence of catalysts by contacting 6-aminocaproic acid derivatives with superheated steam |
| 08/27/1998 | CA2281981A1 Process to prepare .epsilon.-caprolactam |
| 08/26/1998 | EP0860431A1 Process to prepare e-caprolactam |
| 08/20/1998 | WO1998035938A1 PROCESS TO CONTINUOUSLY PREPARE AN AQUEOUS MIXTURE OF ε-CAPROLACTAM AND ε-CAPROLACTAM PRECURSORS |
| 08/20/1998 | CA2280780A1 Process to continuously prepare an aqueous mixture of .epsilon.-caprolactam and .epsilon.-caprolactam precursors |
| 07/29/1998 | EP0854864A1 Process for the recovery of caprolactam from waste containing nylon by extraction with alkyl phenols |
| 07/14/1998 | US5780623 Process to prepare ε-caprolactam from 6-aminocaproic acid |
| 07/01/1998 | EP0850219A1 Recovery of caprolactam from nylon-6 scrap |
| 07/01/1998 | CN1186484A Process for producing cyclohexanonoxim and caprolactam |
| 06/24/1998 | EP0848703A1 Derivatives of benzosulphonamides as inhibitors of the enzyme cyclo-oxygenase ii |
| 06/10/1998 | EP0740648B1 Lewis acid catalyzed ammonolysis of nylon |
| 06/10/1998 | CN1184467A Titanium dioxide-catalysed cyclisation in the liquid phase of 6 -amino caproic acid nitrile to caprolactam |
| 06/10/1998 | CN1184466A Process for producing caprolactame |
| 05/27/1998 | EP0844240A1 Process for recovering caprolactam and its oligomers form aqueous polycaprolactam extracts |
| 05/12/1998 | US5750791 Producing diamines and diacids |
| 04/30/1998 | WO1998017642A1 Process to separate epsilon-caprolactam from 6-aminocaproamide and 6-aminocaproamide oligomers |
| 04/30/1998 | WO1998017641A1 Method for treating lactams |
| 04/30/1998 | CA2269292A1 Process to separate epsilon-caprolactam from 6-aminocaproamide and 6-aminocaproamide oligomers |
| 04/22/1998 | EP0836587A1 Process for separating pivalic acid from spent reaction mixtures |
| 04/21/1998 | US5741904 Vapor phase beckmann rearrangement of cyclohexanone oxime |
| 04/16/1998 | WO1998015529A1 Preparation of caprolactam |
| 04/14/1998 | US5739324 Preparation of caprolactam |
| 04/08/1998 | EP0833809A1 Nitric acid hydrolysis of polyamides |
| 04/01/1998 | CN1177594A Process for preparation of acid amides from oximes |
| 03/18/1998 | EP0828707A1 Process for producing cyclohexanonoxim and caprolactam |
| 03/12/1998 | WO1998009944A1 PROCESS FOR THE PREPARATION OF ε-CAPROLACTAM |
| 03/12/1998 | CA2264039A1 Process for the preparation of .epsilon.-caprolactam |
| 03/04/1998 | EP0826666A1 Process to prepare epsilon-caprolactam |
| 03/04/1998 | EP0826665A1 Recovery of epsilon-caprolactam from aqueous mixtures |
| 03/04/1998 | CN1175245A Method for preparing caprolactam |
| 03/03/1998 | US5723603 Process for the preparation of lactams |
| 02/19/1998 | WO1998006694A1 Amidinophenyl-pyrrolidines, -pyrrolines, and -isoxazolidines and derivatives thereof |
| 02/19/1998 | WO1998006693A1 Method for the production of lactams |
| 02/19/1998 | CA2262117A1 Amidinophenyl-pyrrolidines, -pyrrolines, and -isoxazolidines and derivatives thereof |
| 02/18/1998 | CN1173495A Process for preparation of amides from oximes |
| 02/17/1998 | US5719316 Cyclododecanone oxime chemical intermediate |
| 02/12/1998 | WO1998005636A1 Method for purifying lactams |
| 02/12/1998 | DE19632006A1 Verfahren zur Herstellung von Lactamen Process for the preparation of lactams |
| 02/11/1998 | EP0823422A1 Process for the preparation of amides from oximes |
| 02/10/1998 | US5717111 Condensation polymerization forming polyester, catalytic depolymerizing in a solvent |
| 02/10/1998 | US5717090 Partial hydrogenation of adiponitrile to form ammonia, 6-aminocapronitrile, hexamethylenediamine, hexamethylenimine, adiponitrile product mixture, multi-stage distillation, cyclization of separated 6-aminocapronitrile |
| 02/10/1998 | US5717089 Process for the preparation of E-caprolactam |
| 02/04/1998 | EP0822184A1 Process for the preparation of N-substituted lactames |
| 01/29/1998 | WO1998003481A1 Process for preparing caprolactam from 6-aminocapronitrile |
| 01/29/1998 | CA2260805A1 Process for preparing caprolactam from 6-aminocapronitrile |
| 01/28/1998 | CN1171782A Method of simultaneously preparing caprolactam and hexamethylene diamine |
| 01/28/1998 | CN1171781A Process for continuously cleaning raw caprolactam made from 6-amino capronitrile |
| 01/22/1998 | WO1998002416A1 Process for the separation of a ketoxime or aldoxime from an amide |
| 01/22/1998 | CA2260165A1 Process for the separation of a ketoxime or aldoxime from an amide |
| 01/21/1998 | EP0819675A1 Process for the preparation of amides from oximes |
| 01/07/1998 | EP0815078A1 Process for producing caprolactam |
| 01/07/1998 | EP0815077A1 Titanium dioxide-catalysed cyclisation in the liquid phase of 6-amino caproic acid nitrile to caprolactam |
| 01/07/1998 | CN1169720A Obtaining caprolactam by depolymerization of molten polycaprolactam |
| 01/07/1998 | CN1169719A Method of obtaining caprolactam by hydrolytic splitting of molten polycaprolactam |
| 01/07/1998 | CN1169718A Method of obtaining caprolactam by cracking of molten polycaprolactam |
| 12/31/1997 | CN1169146A Method for preparing lactam |
| 12/23/1997 | US5700934 Process for the preparation of epsilon-caprolactam and epsilon-caprolactam precursors |
| 12/23/1997 | US5700358 Recovery of caprolactam from oligomers and/or polymers of caprolactam |
| 12/18/1997 | WO1997047596A1 METHOD OF PURIFYING ε-CAPROLACTAM |
| 12/18/1997 | DE19623662A1 Verfahren zur Reinigung von epsilon-Caprolactam A process for the purification of epsilon-caprolactam |
| 12/18/1997 | CA2257917A1 Method of purifying .epsilon.-caprolactam |
| 12/10/1997 | CN1167483A Process for preparing caprolactam |
| 12/03/1997 | CN1166830A Method of producing caprolactam |
| 12/03/1997 | CN1036583C Process for conversion of oximes into corresponding amides |
| 12/02/1997 | US5693793 Preparation of caprolactam from 6-aminocapronitrile |
| 11/27/1997 | WO1997044318A1 PREPARATION OF LACTAMS FROM ALIPHATIC α,φ-DINITRILES |
| 11/27/1997 | CA2254902A1 Preparation of lactams from aliphatic .alpha.,.omega.-dinitriles |
| 11/12/1997 | EP0805801A1 Method for preparing lactam |
| 11/05/1997 | CN1163886A Process for preparation of lauryllactam by photonitrosation of cyclododecane in presence of trichloronitrosomethane |
| 10/30/1997 | WO1997040000A1 Processes for producing hydroxyaldehydes |
| 10/30/1997 | CA2252479A1 Processes for producing hydroxyaldehydes |
| 10/30/1997 | CA2252478A1 Processes for producing hydroxyaldehydes |
| 10/28/1997 | US5681952 Recovery of caprolactam from a feed mixture of polycaprolactam, polyethylene terephthalate and polyhexamethylene adipamide by contacting the waste with superheated steam in absence of added catalyst |
| 10/22/1997 | EP0801647A1 Method of simultaneously preparing caprolactam and hexamethylene diamine |
| 10/22/1997 | EP0801643A1 Process for continuously cleaning raw caprolactam made from 6-amino capronitrile |
| 10/01/1997 | EP0798290A1 Process for the preparation of the oxim of cyclododecanone by photonitrosation of cyclododecane in the presence of trichloronitrosomethane |
| 10/01/1997 | EP0797572A1 Obtaining caprolactam by depolymerization of molten polycaprolactam |