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| Number | Title | Issue Date |
| 7632967 | Raney copper Raney copper which is doped with at least one metal from the group comprising iron and/or noble metals is used as a catalyst in the dehydrogenation of alcohols. ... | 12/15/2009 |
| 7423173 | Method for producing alpha-hydroxycarboxylic acids and the esters thereof The invention relates to a process for the selective, economically viable preparation of methacrylic acid and methacrylic esters starting from acetone cyanohydrin, wherein, in a first step, 2-hydroxy-2-methylpropionic acid is prepared by reacting acetone cyanohydrin... | 09/09/2008 |
| 7335248 | Marine antifouling coating compositions Disclosed are marine coating compositions that are useful to inhibit the fouling of a marine structure by a broad spectrum of organisms. Generally, the marine coating composition comprises an antifouling agent and an organic vehicle. ... | 02/26/2008 |
| 7329778 | Process and catalyst for dehydrogenating primary alcohols to make carboxylic acid salts This invention is directed to a process for making a salt of a carboxylic acid. The process comprises contacting a catalyst with an alkaline mixture comprising a primary alcohol. In one embodiment, for example, the catalyst comprises a metal support (preferab... | 02/12/2008 |
| 7323608 | Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds One aspect of the present invention relates to copper-catalyzed carbon-heteroatom and carbon-carbon bond-forming methods. In certain embodiments, the present invention relates to copper-catalyzed methods of forming a carbon-sulfur bond between the sulfur atom of a t... | 01/29/2008 |
| 7253307 | Process for production of methacrylic acid Provided herein are improved methods for producing methacrylic acid and methacrylate esters using combined or “integrated” processing steps including integrated hydrolysis, integrated cracking systems, and combinations thereof. In one embodiment, other aspects o... | 08/07/2007 |
| 7196033 | Advances in amination catalysis Provided herein are catalysts useful in reductive amination, which include nickel, copper, zirconium and/or chromium, oxygen, and tin. The presence of the tin increases the selectivity of the catalyst in reductive aminations over the catalysts of the prior art. ... | 03/27/2007 |
| 7164976 | Control apparatus for fuel cell vehicle A control apparatus 20 is provided in order to improve the energy efficiency of a vehicle during regeneration by a propulsion motor. At the time of regenerative operation of a propulsion motor 15, calculates the regenerative electric power which can be... | 01/16/2007 |
| 7067693 | Deeply reduced oxidation catalyst and its use in preparing N-(phosphonomethyl) glycine compounds This invention relates to an improved catalyst, comprising a carbon support having a noble metal at its surface, for use in catalyzing liquid phase oxidation reactions, especially in an acidic oxidative environment and in the presence of solvents, reactants, interme... | 06/27/2006 |
| 6743946 | Method for separating hydroxymethylthiobutyric acid The invention concerns an improved method for separating hydroxymethylthiobutyric acid by neutralising hydroxymethylthiobutyronitrile sulphuric hydrolysate, decanting and treating each phase with an organic solvent. ... | 06/01/2004 |
| 6627773 | Process for producing 2-hydroxy-4-methyl-thiobutanoic acid A process for producing 2-hydroxy-4-methylthiobutanoic acid is provided wherein 2-hydroxy-4-methylthiobutyronitrile is converted to 2-hydroxy-4-methylthiobutanamide by using sulfuric acid, then adding an aqueous solution containing ammonium bisulfate and ... | 09/30/2003 |
| 6624327 | Process for preparing betaines The invention relates to a process for preparing betaines of formula (I) wherein R1 represents a C1 -C24 hydrocarbon group, and R2 and R3 independently represent a C1 -C3 hydrocarbon ... | 09/23/2003 |
| 6610884 | Polycarboxylic acids, preparation thereof and use thereof for treating cellulosic fibres or textile or paper materials produced therefrom A process is provided for preparing specific polycarboxylic acids by oxidative cleavage of double-bond compounds with hydrogen peroxide or hydrogen peroxide donors. The polycarboxylic acids thus obtained are notable for excellent acid stability, and conse... | 08/26/2003 |
| 6555706 | Process for making iminodiacetic acid compounds from monoethanolamine substrates This invention is directed to a process for making an iminodiacetic acid compound from a monoethanolamine substrate having the formula: ##STR1## wherein R1 is hydrogen, hydrocarbyl, or substituted hydrocarbyl. The process includes a series of r... | 04/29/2003 |
| 6414188 | Method of preparing amino-, imino-, and nitrilocarboxylic acids and silver-promoted copper catalyst for use in said method Disclosed herein is a method for preparing amino-, imino-, and nitrilocarboxylic acids, and their alkali metal salts, starting from alkanolamines. The method employs oxidative dehydrogenation of the alkanolamine(s) in an alkali metal hydroxide medium, usi... | 07/02/2002 |
| 6376708 | Process and catalyst for dehydrogenating primary alcohols to make carboxylic acid salts This invention is directed to a process for making a salt of a carboxylic acid. The process comprises contacting a catalyst with an alkaline mixture comprising a primary alcohol. In one embodiment, for example, the catalyst comprises a metal support (pref... | 04/23/2002 |
| 6239312 | Method for the preparation of salts of carboxylic acids using copper catalyzed dehydrogenation A method for the production of a salt of carboxylic acid by catalytic dehydrogenation effected by reacting the corresponding primary alcohol in aqueous solution with an alkaline hydroxide in the present of a copper catalyst, in which, before the catalytic... | 05/29/2001 |
| 6229045 | Process for preparing carboxylic acids Aliphatic primary alcohols, including aliphatic primary alcohols possessing one or more oxygen, nitrogen and/or phosphorus heteroatoms that may be atoms substituting for carbon atoms in the alkyl group or component atoms of substituents on the alkyl group... | 05/08/2001 |
| 6169201 | Process for the preparation of N-acylamino acids Process for the preparation of N-acetyl protected amino acids of Formula I ##STR1## by amido carbonylation utilizing carbon monoxide, nitrile, and an aldehyde in the presence of a metal catalyst.... | 01/02/2001 |
| 6159894 | Catalyst for dehydrogenation of amino alcohols to amino carboxylic acids or of ethylene glycol (derivatives) to oxycarboxylic acids, method for their production and their use Catalyst for dehydrogenating amino alcohols to aminocarboxylic acids or ethylene glycol (derivatives) to oxycarboxylic acids, said catalyst containing zirconium, copper and possibly an additional metal, whereby the cited metals are precipitated as hydroxi... | 12/12/2000 |
| 6130315 | Peptidase inhibitors This invention relates to analogs of peptidase substrates in which the amide group containing the scissile amide bond of the substrate peptide has been replaced by an activated electrophilic ketone moiety. These analogs of the peptidase substrates provide... | 10/10/2000 |
| 6127573 | Oxidaton of primary alcohols to carboxylic acids with a TEMPO catalyst using NaClO2 and NaClO The present invention relates to a TEMPO-catalyzed oxidation of primary alcohols, RCH2 OH to corresponding carboxylic acids, RCOOH in the presence of catalytic in the presence of catalytic amount of NaClO and stoichiometric amount of NaClO... | 10/03/2000 |
| 6100427 | Production of amides and/or acids from nitriles A process for producing an amide and/or acid from a nitrile comprises introducing a nitrile, as a first reactant, and a hydration compound, as a second reactant which is capable of reacting with the nitrile to convert it to its corresponding amide thus hy... | 08/08/2000 |
| 6046356 | Preparation of solutions of betaine Betaine is produced by the oxidation of a choline salt in the presence of a base and a supported noble metal catalyst at temperatures from about 20° C. to 100° C. and pressures from atmospheric to about 100 psi. This process is advantageous over prior p... | 04/04/2000 |
| 6025522 | Process for making secondary amphoacetates and diacetates Process for making secondary amphoacetate and amphodiacetate of the formula ##STR1## wherein R1 is C8 -C18 -alkyl or C8 -C18 -alkenyl, R2 is hydrogen or a group of the formula --CH2 | 02/15/2000 |
| 5973198 | Method for separating ammonium sulfate and ammonium bisulfate from each other and process for producing 2-hydroxy-4-methylthiobutanoic acid utilizing the method A process for producing 2-hydroxy-4-methylthiobutanoic acid which includes conducting hydration and successive hydrolysis of 2-hydroxy-4-methylthiobutyronitrile in a reaction system containing 2-hydroxy-4-methylthiobutyronitrile and sulfuric acid, ammoniu... | 10/26/1999 |
| 5907055 | Use of triacids based on alkoxylated tertiary amines as complexing agents The use of triacids of the formula I ##STR1## where X1 to X3 are, independently of one another, carboxylic acid groups of the formula COOM, sulfonic acid groups of the formula SO3 M or phosphonic acid groups of the fo... | 05/25/1999 |
| 5905168 | Process for treating a material comprising a polymer by hydrolysis Process for the treatment of a material comprising a polymer, especially a polyamide. The process consists in subjecting the polyamide to hydrolysis in the presence of a hydrolyzing nitrous grouping and transforming the hydrolyzed compounds into diacids. ... | 05/18/1999 |
| 5808143 | Catalyst based on oxides of Fe, Co, Bi and Mo Catalysts of the formula I Aa Bb Ox !p Cc Dd Fee Cof Ei Fj Oy !q I, where A is bismuth, telluri... | 09/15/1998 |
| 5739395 | Method for synthesis of rhizoferrin A method of synthesizing rhizoferrin and analogues thereof comprising acylating a protected polyamine with a citric acid diester; hydrolyzing the resulting amide to produce an N-protected rhizoferrin or analog thereof; and de-protecting the intermediate t... | 04/14/1998 |
| 5739390 | Process to prepare amino carboxylic acid salts An improved process is discloses to prepare an amino carboxylic acid salt. According to the process an aqueous solution of an amino alcohol is contacted with an alkali metal hydroxide in the presence of an effective amount of Raney copper catalyst that ha... | 04/14/1998 |
| 5602279 | Primary hindered aminoacids for promoted acid gas scrubbing process A gas treating composition prepared by reacting 2-amino-2-methyl-1-propanol with KOH, diluting with water and adding K2 CO3 and a vanadium corrosion inhibitor.... | 02/11/1997 |
| 5554766 | Process for preparing water-soluble organic oxide A process for preparing a water-soluble organic oxide which comprises reacting an oil-soluble organic compound with molecular oxygen in the presence of a water-insoluble sensitizer in an organic solvent phase under irradiation of light to produce a water-... | 09/10/1996 |
| 5386056 | Process for producing 2-hydroxy-4-methylthiobutanoic acid Methyl 2-hydroxy-4-methylthiobutanoate and formamide are produced by means of reacting 2-hydroxy-4-methylthiobutanamide obtained by hydration of 2-hydroxy-4-methylthiobutyronitrile with methyl formate. Said methyl 2-hydroxy-4-methylthiobutanoate is hydrol... | 01/31/1995 |
| 5367112 | Process to prepare amino carboxylic acid salts An improved process is disclosed to prepare an carboxylic acid salt. According to the process, an aqueous solution of an alcohol is contacted with an alkali metal hydroxide in the presence of an effective amount of a copper catalyst that contains from abo... | 11/22/1994 |
| 5292936 | Process to prepare amino carboxylic acid salts An improved process is disclosed to prepare an amino carboxylic acid salt. According to the process, an aqueous solution of an amino alcohol is contacted with an alkali metal hydroxide in the presence of an effective amount of a Raney copper catalyst that... | 03/08/1994 |
| 5225592 | Procedure for obtaining derivatives from acetic acid Procedure for obtaining acetic acid derivatives (I) where R1 and R2 are H or groups --CH2 --COOH by oxidation of (II) where R and R' are H or groups of --CH2 --CH2 OH with O2 or a gas that ... | 07/06/1993 |
| 5220054 | Process for producing aminocarboxylic acid salt The present invention provides a novel process for producing an aminocarboxylic acid salt which is useful as a material for agricultural chemicals and drugs, a chelating agent, a food additive, etc. The process produces an aminocarboxylic acid salt from a... | 06/15/1993 |
| 5220055 | Process for producing aminocarboxylic acid salts There is provided a novel process for producing aminocarboxylic acid salts useful as starting materials of agricultural chemicals and medicines, chelating agents, food additives, and so on. This process is characterized in that when producing an aminocarb... | 06/15/1993 |
| 5210309 | Multifunctional synthons as used in the preparation of cascade polymers or unimolecular micelles The bis-homotris compounds 4-amino-4-[1-(3-hydroxy-propyl)]-1,7-heptanediol and 4-[1-(3-aminopropyl)]-4-[1-(3-hydroxypropyl)]-1, 7-heptanediol, and organic synthetic methods for their preparation are described. Unique multifunctional aminotriols, as well ... | 05/11/1993 |
