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| Number | Title | Issue Date |
| 7314942 | Methylenelactones syntheses in supercritical fluids Alpha-methylenelactone is produced from butyrolactone and valerolactone by the addition of formaldehyde in a supercritical fluid. ... | 01/01/2008 |
| 7238772 | Preparation of polytrimethylene ether glycol and copolymers thereof The present invention relates to a process comprising using ionic liquids for the polycondensation of 1,3-propanediol reactants to produce polytrimethylene ether glycol and copolymers thereof. ... | 07/03/2007 |
| 7164032 | Supercritical fluid phase synthesis of methylene lactones using novel catalyst field of invention Process for converting certain lactones to their alpha-methylene substituted forms that not only exhibits high initial activity (conversion), but also provides high reactor productivity (mass of product per mass of catalyst per unit of time) and sustained maintenanc... | 01/16/2007 |
| 7164033 | Gas phase synthesis of methylene lactones using novel catalyst Process for converting certain lactones to their alpha-methylene substituted forms that not only exhibits high initial activity (conversion), but also maintains a high level of activity with time on stream. ... | 01/16/2007 |
| 7161014 | Gas phase synthesis of methylene lactones using novel grafted catalyst Process for converting certain lactones to their alpha-methylene substituted forms that not only exhibits high initial activity (conversion), but also maintains a high level of activity with time on stream. ... | 01/09/2007 |
| 7157588 | Ionic liquids The present invention relates to compositions of matter that are useful as ionic liquids. The compositions of the invention are based on an N-substituted pyrrolidinone, said pyrrolidinone having a pendant ammonium cation that is separated from the pyrrolidone ring b... | 01/02/2007 |
| 7151185 | Gas phase synthesis of methylene lactones using oxynitride catalyst Process for converting certain lactones to their alpha-methylene substituted forms using an oxynitride catalyst or a composite oxynitride catalyst incorporating lithium, sodium, potassium, rubidium, cesium, magnesium, calcium, strontium, or barium or combinations th... | 12/19/2006 |
| 7129362 | Production of 5-methyl-N-aryl-2-pyrrolidone and 5-methyl-N-alkyl-2-pyrrolidone by reductive of levulinic acid esters with aryl and alkyl amines This invention relates to a process for producing 5-methyl-N-aryl-2-pyrrolidone, 5-methyl-N-alkyl-2-pyrrolidone, and 5-methyl-N-cycloalkyl-2-pyrrolidone by reductive amination of levulinic acid esters with aryl or alkyl amines utilizing a metal catalyst, which is op... | 10/31/2006 |
| 7030249 | Process for converting α-angelica lactone to 5-methyl-N-alkyl-2-pyrrolidone using alkyl amines This invention relates to a process for producing 5-methyl-N-alkyl-2-pyrrolidone by a) reacting α-angelica lactone with alkyl amines and b) hydrogenating the products of step (a) in the presence of a metal catalyst, which is optionally supported. ... | 04/18/2006 |
| 7030074 | Production of 5-methyl-N-(methyl aryl)-2-pyrrolidone, 5-methyl-N-(methyl cycloalkyl)-2-pyrrolidone and 5-methyl-N-alkyl-2-pyrrolidone by reductive amination of levulinic acid esters with cyano compounds This invention relates to a process for producing 5-methyl-N-(methyl aryl)-2-pyrrolidone, 5-methyl-N-(methyl cycloalkyl)-2-pyrrolidone and 5-methyl-N-alkyl-2-pyrrolidone by reductive amination of levulinic acid esters with aryl or alkyl cyano compounds utilizing a m... | 04/18/2006 |
| 7025819 | Production of 5-methyl-N-(methyl aryl)-2-pyrrolidone, 5-methyl-N-(methyl cycloalkyl)-2-pyrrolidone and 5-methyl-N-alkyl-2-pyrrolidone by reductive amination of levulinic acid esters with cyano compounds This invention relates to a process for producing 5-methyl-N-(methyl aryl)-2-pyrrolidone, 5-methyl-N-(methyl cycloalkyl)-2-pyrrolidone and 5-methyl-N-alkyl-2-pyrrolidone by reductive amination of levulinic acid esters with aryl or alkyl cyano compounds utilizing a m... | 04/11/2006 |
| 7014807 | Process of making polypeptide fibers Process of making polypeptide fibers including the steps of contacting a polypeptide with a solution of formic acid a divalent metal ion salt, or contacting a decrystallized polypeptide with formic acid having a water content less than 3 wt % and concentrating the r... | 03/21/2006 |
| 7014697 | Production of 5-methyl-N-(methyl aryl)-2-pyrrolidone, 5-methyl-N-(methyl cycloalkyl)-2-pyrrolidone and 5-methyl-N-alkyl-2-pyrrolidone by reductive amination of levulinic acid esters with cyano compounds This invention relates to a process for producing 5-methyl-N-(methyl aryl)-2-pyrrolidone, 5-methyl-N-(methyl cycloalkyl)-2-pyrrolidone and 5-methyl-N-alkyl-2-pyrrolidone by reductive amination of levulinic acid esters with aryl or alkyl cyano compounds utilizing a m... | 03/21/2006 |
| 7002024 | Production of a N-aryl-2-lactam and N-cycloalkyl-2-lactam by reductive amination of lactones with aryl amines This invention relates to a process for producing N-aryl-2-lactams and N-cycloalkyl-2-lactams by reductive amination of lactones with aryl amines utilizing a metal catalyst, which is optionally supported. ... | 02/21/2006 |
| 6995275 | Production of N-aryl-2-lactam and N-alkyl-2-lactam by reductive amination of lactones with aryl and alkyl nitro compounds This invention relates to a process for producing N-aryl-2-lactams, N-alkyl-2-lactams, and N-cycloalkyl-2-lactams by reductive amination of lactones with aryl or alkyl nitro compounds utilizing a metal catalyst, which is optionally supported. ... | 02/07/2006 |
| 6992141 | Blends of poly[α-methylenelact(one)(am)] homo-and copolymers Polymers containing α-methylenelact(ones)(ams) such as α-methylenebutyrolactones are useful in blends with other polymers. For examples such polymers which have reactive groups are toughened by mixing with a rubbery material which has complimentary reactive groups... | 01/31/2006 |
| 6992195 | Production of N-aryl-2-lactam and N-cycloalkyl-2-lactam by reductive amination of lactones with arylamines This invention relates to a process for producing N-aryl-2-lactams and N-cycloalkyl-2-lactams by reductive amination of lactones with aryl amines utilizing a metal catalyst, which is optionally supported. ... | 01/31/2006 |
| 6987192 | Production of N-aryl-2-lactam and N-alkyl-2-lactam by reductive amination of lactones with aryl and alkyl nitro compounds This invention relates to a process for producing N-aryl-2-lactams, N-alkyl-2-lactams, and N-cycloalkyl-2-lactams by reductive amination of lactones with aryl or alkyl nitro compounds utilizing a metal catalyst, which is optionally supported. ... | 01/17/2006 |
| 6984736 | Production of N-aryl-2-lactam and N-alkyl-2-lactam by reductive amination of lactones with aryl and alkyl nitro compounds This invention relates to a process for producing N-aryl-2-lactams, N-alkyl-2-lactams, and N-cycloalkyl-2-lactams by reductive amination of lactones with aryl or alkyl nitro compounds utilizing a metal catalyst, which is optionally supported. ... | 01/10/2006 |
| 6982339 | Production of N-aryl-2-lactam and N-cycloalkyl-2-lactam by reductive amination of lactones with aryl amines This invention relates to a process for producing N-aryl-2-lactams and N-cycloalkyl-2-lactams by reductive amination of lactones with aryl amines utilizing a metal catalyst, which is optionally supported. ... | 01/03/2006 |
| 6930126 | PRODUCTION OF 5-METHYL-N-(METHYL ARYL)-2-PYRROLIDONE, 5-METHYL-N-(METHYL CYCLOALKYL)-2-PYRROLIDONE AND 5-METHYL-N-ALKYL-2-PYRROLIDONE BY REDUCTIVE AMINATION OF LEVULINIC ACID ESTERS WITH CYANO COMPOUNDS This invention relates to a process for producing 5-methyl-N-(methyl aryl)-2-pyrrolidone, 5-methyl-N-(methyl cycloalkyl)-2-pyrrolidone and 5-methyl-N-alkyl-2-pyrrolidone by reductive amination of levulinic acid esters with aryl or alkyl cyano compounds utilizing a m... | 08/16/2005 |
| 6916842 | PRODUCTION OF 5-METHYL-N-(METHYL ARYL)-2-PYRROLIDONE, 5-METHYL-N-(METHYL CYCLOALKYL)-2-PYRROLIDONE AND 5-METHYL-N-ALKYL-2-PYRROLIDONE BY REDUCTIVE AMINATION OF LEVULINIC ACID ESTERS WITH CYANO COMPOUNDS This invention relates to a process for producing 5-methyl-N-(methyl aryl)-2-pyrrolidone, 5-methyl-N-(methyl cycloalkyl)-2-pyrrolidone and 5-methyl-N-alkyl-2-pyrrolidone by reductive amination of levulinic acid esters with aryl or alkyl cyano compounds utilizing a m... | 07/12/2005 |
| 6835849 | Synthesis of alkenoate esters from lactones and alcohols The invention relates to the synthesis of alkenoate esters from a corresponding lactone and an alcohol in the presence of a basic catalyst. More specifically, this invention relates to the synthesis of methyl-4-pentenoate ester from 5-methyl butyrolactone and methan... | 12/28/2004 |
| 6828277 | Production of N-aryl-2-lactam and N-alkyl-2-lactam by reductive amination of lactones with aryl and alkyl nitro compounds This invention relates to a process for producing N-aryl-2-lactams, N-alkyl-2-lactams, and N-cycloalky-2-lactams by reductive amination of lactones with aryl or alkyl nitro compounds utilizing a metal catalyst, which is optionally supported. ... | 12/07/2004 |
| 6828278 | Production of N-aryl-2-lactam and N-cycloalkyl-2-lactam by reductive amination of lactones with arly amines This invention relates to a process for producing N-aryl-2-lactams and N-cycloalkyl-2-lactams by reductive amination of lactones with aryl amines utilizing a metal catalyst, which is optionally supported. ... | 12/07/2004 |
| 6818593 | Production of 5-Methyl-N-aryl-2-pyrrolidone and 5-methyl-N-alkyl-2-pyrrolidone by reductive amination of levulinic acid with nitro compounds This invention relates to a process for producing 5-methyl-N-aryl-2-pyrrolidone, 5-methyl-N-cycloalkyl-2-pyrrolidone, and 5-methyl-N-alkyl-2-pyrrolidone by reductive amination of levulinic acid with nitro compounds utilizing a metal catalyst, which is optionally sup... | 11/16/2004 |
| 6774158 | Processing of polyhydroxyalkanoates using a nucleant and a plasticizer The present invention is directed to a polyhydroxyalkanoate copolymer composition that can be readily and quickly processed into extruded and molded articles and film-based products. More specifically, the invention pertains to melt processing of polyhydroxyalkanoat... | 08/10/2004 |
| 6764984 | Fluorinated lubricant additives Fluorinated dialkyl dithiophosphoric acids according to formula (I) and metallic salts thereof: the compounds are useful, for example, as additives for lubricant compositions. ... | 07/20/2004 |
| 6737539 | Phosphonite ligands and their use in hydrocyanation Disclosed herein are processes for hydrocyanation and isomerization of olefins by using at least one multidentate phosphonite ligands, including organometallic phosphonite ligands with a Group VIII metal or Group VIII metal compound, and optionally, a Lewis acid pro... | 05/18/2004 |
| 6716977 | Method for making caprolactam from impure ACN wherein ammonia and water are removed from crude caprolactam in a simple separation step and then THA is removed from the resulting caprolactam melt Method for making caprolactam from 6-aminocapronitrile that contains greater than 500 ppm tetrahydroazepine and its derivatives (THA) in which ammonia and water are removed from crude caprolactam in a single separation step and then THA is removed from the resulting... | 04/06/2004 |
| 6677484 | Melt-sprayed curing agent powder and powder coating compositions made therefrom Powder comprising substantially spherical particles of at least one compound selected from the group consisting of azelaic acid, sebacic acid, undecanedioic acid, dodecanedioic acid, brassylic acid, and the anhydrides of said acids, said at least one comp... | 01/13/2004 |
| 6660876 | Phosphorus-containing compositions and their use in hydrocyanation, isomerization and hydroformylation reactions A polymeric, phosphorus-containing composition made by heating, in the presence of an initiator, preferably a free radical initiator, and optionally in the presence of one or more comonomers, at least one substituted phosphonylated 2,2'-dihydroxyl-1,1'-bi... | 12/09/2003 |
| 6599398 | Recovery of adiponitrile from a mixture of adiponitrile, aminocapronitrile and hexamethylenediamine Process for the recovery of a purified adiponitrile (ADN) from a mixture of adiponitrile, aminocapronitrile and hexamethylenediamine, utilizing two sequential distillations: (1) a first distillation in which the mixture is distilled in a distillation colu... | 07/29/2003 |
| 6555718 | Process for preparing 3,3',6,6'-tetraalkyl-2,2'-biphenols and 3,3',6,6'-tetraalkyl-5,5'-dihalo-2,2'-biphenols A process for making a compound of the formula I ##STR1##... | 04/29/2003 |
| 6489517 | Process for preparing 3,3',6,6'-tetraalkyl-2,2'-biphenols and 3,3',6,6'-tetraalkyl-5,5'-dihalo-2,2'-biphenols A process for making a compound of the formula I ##STR1##... | 12/03/2002 |
| 6479620 | Process for converting caprolactam to nylon 6 A process for making nylon 6, in which caprolactam and water are reacted in a multistage reactive distillation column.... | 11/12/2002 |
| 6476181 | Increased volatile removal during solid phase processing of nylon 6 by temperature programming Process for increasing the molecular weight of nylon 6 while reducing its content of caprolactam and other volatiles by a two-staged heating process.... | 11/05/2002 |
| 6472501 | Process for making nylon 6,6 Process for making Nylon 6,6 by reacting adiponitrile, hexamethylenediamine and steam in a multistage distillation column reactor.... | 10/29/2002 |
| 6376714 | Environmentally friendly process for the hydrogenation of dinitriles Process for converting a dinitrile to a diamine and optionally an aminonitrile, in which a Group VIII element catalyst is treated with a modifier either before or during a substantially solvent-free hydrogenation reaction in which the dinitrile is contact... | 04/23/2002 |
| 6372939 | Production of 6-aminocaproic acid A process for making 6-aminocaproic acid by hydroformylating 3-pentenenitrile to produce 3-, 4-, and 5-formylvaleronitrile (FVN mixture), oxidizing the FVN mixture to produce 3-, 4-, and 5-cyanovaleric acid; hydrogenating the resulting product to produce ... | 04/16/2002 |
