| Patents for C07D 201 - Preparation, separation, purification, or stabilisation of unsubstituted lactams (2,192) |
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| 10/17/2007 | EP1206411B1 Process for treating a mixture comprising an ammonium sulfate solution phase and an aqueous lactam phase |
| 10/16/2007 | CA2229207C Recovery of caprolactam from nylon-6 scrap |
| 10/10/2007 | CN101049980A Method for comprehensive utilization for benzene extracting concentrated solution of residue wastewater |
| 10/03/2007 | EP1838668A1 Preparation of lactams |
| 09/26/2007 | EP1626953B1 Process for preparing caprolactam by admixture of cyclohexanone oxime to a reaction mixture under turbulent flow conditions |
| 09/20/2007 | WO2007105482A1 Process for production of amides or lactams |
| 09/18/2007 | US7270752 Process for purifying lactams |
| 09/12/2007 | EP1105374B2 Lactam dehydration method |
| 09/05/2007 | EP1289949B1 Method for the production of caprolactam |
| 08/29/2007 | EP1337575B1 Modified polylactam |
| 08/22/2007 | EP1819655A1 Method for the preparation of cyclohexanone |
| 08/15/2007 | CN101018767A Method for catalytic hydrogenation purification of lactam containing chorolactam impurities |
| 08/01/2007 | EP1042284B1 A process for the purification of caprolactam obtained from the depolymerization of polyamide-containing carpet |
| 08/01/2007 | CN101007776A Preparation process for N-substituted acryl lactam analog compound |
| 07/26/2007 | US20070173644 Process for the preparation of mfi-type zeolitic catalysts |
| 07/25/2007 | CN101006051A Synthesis of caprolactam from lysine |
| 07/25/2007 | CN101003506A Extraction agent of caprolactam |
| 07/18/2007 | EP1636180B1 Process for rectifying n-vinyl-2-pyrrolidone |
| 07/12/2007 | US20070161629 A1 Adenosine Receptor Antagonists |
| 07/10/2007 | US7241883 Functionalized compositions for improved immobilization |
| 07/04/2007 | EP1280769B1 Method for processing pyrollidone and n-vinyl pyrollidone residues |
| 07/03/2007 | US7238804 Preparation of lactams |
| 07/03/2007 | US7238803 From cyclohexanone oxime in vapor phase using zeolite catalyst; catalyst selectivity |
| 06/28/2007 | US20070149778 Beckmann rearrangement using molecular sieve ssz-74 |
| 06/28/2007 | US20070149777 Reflulxing salt of L-lysine in alcohol solvent to form alpha -amino- epsilon -caprolactam |
| 06/27/2007 | EP1801101A1 Method of depolymerizing polyamides and method of manufacturing polyamide monomers |
| 06/27/2007 | EP0891327B2 Recovery of epsilon-caprolactam from aqueous mixtures |
| 06/27/2007 | CN1322927C Method for preparing catalyst of containing MFI structured molecular sieve |
| 06/19/2007 | US7232784 Metal oxide-containing kenyaite catalyst, method for preparing the same, and method for preparing ε-caprolactam using the same |
| 06/14/2007 | WO2007066492A1 Process for production of lactam |
| 06/13/2007 | CN1978427A Method for preparing epsilon-caprolactam by rearrangement of cyclohexanone oxime under ultrasonic wave irradiation |
| 06/13/2007 | CN1321109C Cephaene onium salt compound and its preparation, and synthesis of cephapyrazde sulfate therefrom |
| 05/31/2007 | WO2007060828A1 Method for depolymerizing polyamide and method for producing monomer of polyamide |
| 05/30/2007 | EP1789385A1 Method for producing n-alkyl-n-methyl-3-hydroxy-3-(2-thienyl)-propylamines |
| 05/30/2007 | CN1970674A Caprolactam-inorganic particle hybrid material and its preparing process |
| 05/23/2007 | CN1317266C Process for the preparation of epsilon-caprolactam from a mixture comprising 6-aminocaproamide and/or oligomers |
| 05/17/2007 | US20070112189 High silica cds-1 zeolite |
| 05/15/2007 | US7217818 Purification of caprolactam |
| 05/09/2007 | CN1958592A Compound of onium salt in Cephalosprins, preparation method, and method for synthesizing vitriolic cefpyrazole from the compound |
| 05/09/2007 | CN1958569A Improved technique for preparing hydantoin from glycine, sodium hydroxide, and urea |
| 05/08/2007 | US7214637 Microspheres with an average diameter of 30 to 200 mu m, containing 15 to 20% by weight silica ligand, and having a resistance to attrition, expressed as Davison Index of less than 6.0; formed by mixing silica sol with zeolite, basification to a value not higher than 6.0, and emulsification/gelation |
| 05/02/2007 | EP1581486A4 Method for assaying compounds that decrease the activity of poly(adp-ribose)-polymerase (parp) |
| 04/18/2007 | EP1773765A2 Method for catalytic hydrogenation purification of lactam containing chorolactam impurities |
| 04/12/2007 | WO2006136699A3 Method for synthesising lauryl lactam (l12) by catalytically rearranging cyclododecanone oxime in a gaseous phase |
| 04/12/2007 | US20070083043 Feeding oleum and cyclohexanone oxime into a first reaction mixture comprising caprolactam, sulfuric acid and SO3,feeding a portion of the first reaction mixture and cyclohexanone oxime into a second reaction mixture comprising caprolactam, sulfuric acid and SO3, withdrawing |
| 04/11/2007 | EP0885180B1 Stabilized monomer composition |
| 04/10/2007 | US7202252 Xanthines 3-substituted with an arylalkylene or N-heteroarylalkylene group and 8-substituted with a heteroarylalkylene group, e.g. 3-[2-(4-Aminophenyl)ethyl]-1-propyl-8-[(3-pyridyl)methyl]xanthine and 3-[2-(4-Aminophenyl)ethyl]-1-propyl-8-[(4-thiazolyl)methyl]xanthine |
| 04/04/2007 | CN1308443C Preparation of lactams from aliphatic alpha, omega dinitriles |
| 04/04/2007 | CN1308337C Bidentate ligands for the carbonylation of unsaturated compounds |
| 03/15/2007 | US20070060750 Hydrogenating caprolactam in presence of a heterogeneous nickel containing hydrogenation catalyst, continuously distilling at least a portion of the hydrogenated caprolactam in a distillation column |
| 03/15/2007 | US20070060749 Process for preparing caprolactam by admixture of cyclohexanone oxime to a reaction mixture under turbulent flow conditions |
| 03/14/2007 | EP1761487A1 Synthesis of caprolactam from lysine |
| 03/13/2007 | US7189845 Method for producing ε-caprolactam |
| 03/08/2007 | US20070055061 Feeding oleum and cyclohexanone oxime into a first reaction mixture comprising caprolactam, sulfuric acid and SO3,feeding a portion of the first reaction mixture and cyclohexanone oxime into a second reaction mixture comprising caprolactam, sulfuric acid and SO3, withdrawing |
| 03/08/2007 | DE102005037418B3 New acyllactam compounds useful to increase the molecular weight of polycondensation products such as polyester or polyamide compounds |
| 02/14/2007 | EP1242369B1 Process for recovering monomeric units of a nylon from whole carpet |
| 02/06/2007 | US7173127 Recycling aminocaproic acid comprising depolymerisation of nylons, then distilling and crystallizing, for reuse as polycaprolactam |
| 02/01/2007 | WO2006016060A8 Method for catalytic hydrogenation purification of lactam containing chorolactam impurities |
| 01/17/2007 | CN1896056A Production of epsilon-caprolactam |
| 01/16/2007 | US7164031 Liquid phase reacting of gamma-butyrolactone with ammonia and water; heating, pressurization |
| 01/10/2007 | EP1741699A2 Method for producing E-caprolactam |
| 01/03/2007 | EP1190769B1 A hydrogenation catalyst and its preparation |
| 12/27/2006 | CN1883803A Process for preparing catalyst for use in preparation of caprolactam from cyclohexanone oxime |
| 12/21/2006 | WO2006135860A1 Sulfonamide compounds and uses thereof |
| 12/21/2006 | CA2611493A1 Sulfonamide compounds and uses thereof |
| 12/20/2006 | EP1636178B1 Method for making caprolactam |
| 12/14/2006 | US20060281928 Process for rectifying n-vinyl-2-pyrrolidone |
| 11/28/2006 | US7141668 from mixtures comprising caprolactam, water, light components including unsaturated lactams and heavy components, by vacuum distillation, then hydrogenating the unsaturated lactams |
| 11/22/2006 | CN1285568C Method of evaporating cyclohexanone oxime |
| 11/15/2006 | CN1861579A Preparation process of 3,3-imyl butyrolactam |
| 11/15/2006 | CN1284774C Process for distilling alkaline caprolactam product at reduced pressure |
| 11/14/2006 | US7135542 Carbonylation pentenenitrile to 5-cyanovaleric acid; reduction to caproic acid, 6-amino-; then polymerization |
| 11/08/2006 | EP1719756A1 Nitrogenous fused heteroaromatic ring derivative |
| 11/02/2006 | EP1173419B1 Process for nylon depolymerization |
| 10/31/2006 | US7129347 Depolymerization of polycaprolactam |
| 10/11/2006 | EP1710233A1 Novel benzofuran derivative, medicinal composition containing the same, and uses of these |
| 10/04/2006 | CN1842519A Process for preparing caprolactam by admixture of cyclohexanone oxime to a reaction mixture under turbulent flow conditions |
| 10/04/2006 | CN1277818C Process for recovering caprolactam |
| 10/03/2006 | US7115671 Process for recovering monomeric units of a nylon from whole carpet |
| 09/28/2006 | WO2006101871A1 Process for making caprolactam |
| 09/28/2006 | WO2006101870A1 Improved method for making caprolactam from impure 6-aminocapronitrile |
| 09/28/2006 | CA2600770A1 Process for making caprolactam |
| 09/28/2006 | CA2600769A1 Improved method for making caprolactam from impure 6-aminocapronitrile |
| 09/26/2006 | US7112679 Convergent synthesis of α-aryl-β-ketonitriles |
| 09/21/2006 | US20060211859 Method for making caprolactam from impure 6-amiocapronitrile |
| 09/14/2006 | US20060205939 Process for producing cyclohexanone oxime |
| 09/06/2006 | CN1829687A Process for purifying caprolactam |
| 08/31/2006 | WO2006090044A1 Lactam production method |
| 08/17/2006 | US20060183903 Reacting 4-(alpha-(p-chlorophenyl)benzyl)-1-leaving group-alkylpiperazine with protected 1-hydroxy-1-(4-(p-hydroxyphenyl)-3-butynyl)urea to form 1-(4-(p-(4-(alpha-(p-chlorophenyl)benzyl)-1-piperazin-1-ylalkyl)phenyl)-3-butynyl)-1-hydroxyurea; preparation of intermediates |
| 08/16/2006 | CN1269803C Process for preparing epsilon-caprolactam |
| 08/15/2006 | US7090817 Process for the preparation of hydroxylammonium |
| 08/09/2006 | EP1688393A1 High silica cds-1 zeolite |
| 08/02/2006 | CN1810786A Synthesis of caprolactam and its oligomer |
| 08/01/2006 | US7084269 Process for producing lactam |
| 07/27/2006 | WO2006078403A1 Preparation of lactams |
| 07/27/2006 | CA2594900A1 Preparation of lactams |
| 07/26/2006 | CN1809533A Method for making caprolactam from impure 6-amino-capronitrile containing tetrahydroazepine |
| 07/26/2006 | CN1809532A Method for making caprolactam |
| 07/20/2006 | US20060161000 Reacting a solution comprising an amino alkane nitrile in water, heating and pressurization to produce lactam |
| 07/05/2006 | CN1262539C Process for recovering and purifying caprolactam from organic solvent |