Patents
Patents for C07C 55 - Saturated compounds having more than one carboxyl group bound to acyclic carbon atoms (3,355)
06/1999
06/10/1999CA2312328A1 Process to separate rhodium from an organic mixture
06/09/1999CN1043568C Process for preparation of iridium-based solution, solution obtained and use of the latter as catalyst
06/02/1999EP0919534A1 Process to separate rhodium from an organic mixture
06/02/1999EP0918759A1 Novel thiazolidone-2 derivatives, 4-diketone substituted, method for obtaining them and pharmaceutical compositions containing same
06/02/1999EP0918741A1 Method for purifying adipic acid by crystallization
06/01/1999US5908589 Methods for separating catalyst from oxidation mixtures containing dibasic acids
05/1999
05/27/1999WO1999025461A1 Method and device for global warming prevention
05/25/1999CA2116502C Process for the hydroxycarbonylation of lactones
05/20/1999WO1999010527A3 Method for isolating anionic organic substances from aqueous systems using cationic polymer nanoparticles
05/18/1999US5905168 Process for treating a material comprising a polymer by hydrolysis
05/12/1999EP0914195A1 Method for separating a catalyst by membrane electrodialysis
05/12/1999EP0737103B1 Process for producing an iridium solution and use of same as catalyst.
05/06/1999EP0912485A1 Pentenoic acid hydroxycarbonylation method
05/06/1999EP0912484A1 Method for purifying adipic acid in water
05/06/1999EP0801637B1 Process for improving the purity of hexane diol-1,6
05/04/1999US5900506 Method of processing reaction mixtures obtained from the oxidation of cyclohexane
04/1999
04/28/1999EP0910466A1 Methods and devices for oxidizing a hydrocarbon to form an acid
04/28/1999CN1215350A Method for separating a catalyst by membrane electrodialysis
04/27/1999US5897908 Mixture selected from the group lysin monohydrochloride and potassium chloride or lysin monohydrochloride, potassium chloride and succinic acid to fullfil dietary as well as table salt taste needs
04/07/1999CN1213413A Process for preparation of tetraalkyl 1,2,3,4-butanetetracaroboxylates
04/01/1999WO1999015489A1 Methods and devices for removing acetic acid from cyclohexane in the production of adipic acid
04/01/1999CA2304363A1 Methods and devices for removing acetic acid from cyclohexane in the production of adipic acid
03/1999
03/31/1999EP0837842A4 Methods and devices for making intermediate oxidation products by controlling conversions and temperatures in an atomized liquid
03/31/1999EP0742788B1 Process for the preparation of a linear formyl compound
03/25/1999WO1999014179A1 Methods and reactor devices for removing catalyst after oxidation of hydrocarbons
03/25/1999WO1999014178A1 Methods of recycling catalyst in oxidations of hydrocarbons
03/25/1999CA2304121A1 Methods of recycling catalyst in oxidations of hydrocarbons
03/25/1999CA2304025A1 Methods and reactor devices for removing catalyst after oxidation of hydrocarbons
03/23/1999US5886219 Process for preparing malonic acid and alkylmalonic acids
03/23/1999US5886043 Antiarthritic agents, antitumor agents, antiinflammatory agents
03/23/1999US5886024 Thiophene-containing butonic acid derivatives as matrix metalloprotease inhibitors
03/23/1999US5885369 Alloy powder having protective coating of adipic acid reacted with alloy surface; oxidation resistance
03/16/1999US5883289 Preparation of carboxylic acids or related esters by carbonylation in the presence of iridium
03/04/1999WO1999010527A2 Method for isolating anionic organic substances from aqueous systems using cationic polymer nanoparticles
03/04/1999CA2300885A1 Method for isolating anionic organic substances from aqueous systems using cationic polymer nanoparticles
03/03/1999CN1209818A Method of producing press-moulding materials with polyisocyanate binders and using latent, heat-activable catalyst
02/1999
02/25/1999WO1999008988A1 Malonic acid and esters thereof
02/25/1999DE19736366A1 Isolating anionic substances e.g. protein, nucleic acids, from aqueous systems
02/23/1999US5874520 Preparation of nylon salts from diamine carbamates and dicarboxylic acids
02/23/1999US5874473 Substituted cycloalkanecarboxylic acid derivatives as matrix metalloprotease inhibitors
02/10/1999EP0785919B1 Preparation of carboxylic acids or related esters by carbonylation in the presence of iridium
02/04/1999WO1999005086A1 Methods and devices for controlling hydrocarbon oxidations to respective acids by adjusting the solvent to hydrocarbon ratio
02/04/1999CA2297740A1 Methods and devices for controlling hydrocarbon oxidations to respective acids by adjusting the solvent to hydrocarbon ratio
01/1999
01/26/1999US5864049 Process for the preparation of mono- and dicarboxylic acids from unsaturated fatty acids and/or their derivatives
01/26/1999CA1340359C Process for preparing polymeric dispersants having alternating polyalkylene and succinic groups
01/19/1999US5861428 Alleviation of osteoarthritis, rheumatoid arthritis, septic arthritis, periodontal disease, corneal ulceration, proteinuria, aneurysmal aortic disease, dystrophobic epidermolysis bullosa, inflammation, osteopenias, tempero
01/19/1999US5861427 Substituted 4-biarylbutyric acid derivatives as matrix metalloprotease inhibitors
01/13/1999EP0651674B1 Catalysts and their use in oxidation of satured hydrocarbons
01/12/1999US5859047 Antiarthritic agents, nervous system disorders
01/07/1999WO1999000352A1 Recovery of fermentation salts from dilute aqueous solutions
12/1998
12/30/1998EP0655951B1 Static condition process for the preparation of phosphorus/vanadium oxidation catalyst
12/30/1998CN1041409C Process for preparation of hexandioic acid by hydrogen added carboxyltion of pentenylic acid
12/29/1998US5854277 Thiophenebutanoic acid derivatives as matrix metalloprotease inhibitors
12/22/1998US5852212 Process for preparation of optically active α-bromo and α-chlorocarboxylic compounds
12/15/1998US5849949 Process for preparing alkyl- and arylmalonic acids
12/08/1998US5847204 Process for producing an iridium solution and use of same as catalyst
12/08/1998US5847202 Racemization process for optically active carboxylic acids or salts or esters thereof
12/08/1998US5846500 Process for purifying highly impure calcium hydroxide and for producing high-value precipitated calcium carbonate and other calcium products
12/03/1998WO1998054119A1 Water-soluble salts of dodecandioic acid and pharmaceutical and nutritional compositions containing same
12/02/1998CN1040977C Method for prepn. of hexandioic acid
11/1998
11/18/1998EP0878458A1 Oxidation process of ethers
11/18/1998EP0877767A1 Method of producing press-moulding materials with polyisocyanate binders and using latent, heat-activable catalysts
11/18/1998EP0877561A1 Composition and method for producing a salty taste
11/18/1998CN1199391A Alkenyl-substd. dicarboxylic acid or anhydride ester derivs.
11/18/1998CN1040745C Process for preparing rareearth ammonium double oxalate
11/11/1998EP0646042B1 Electrochemical method for the preparation of adipic acid
11/03/1998US5830966 Cyclopolymerization monomers and polymers
10/1998
10/28/1998EP0873984A1 Process for preparing alkyl- and aryl- substituted malonic acids
10/28/1998EP0873433A1 Process for the preparation of tetraalkyl 1,2,3,4-butanetetracarboxylates
10/20/1998US5824819 Making dibasic acids, such as adipic acid, by oxidizing hydrocarbon, such as cyclohexane, with oxygen in a two stage process
10/14/1998EP0870751A1 Process for the oxidation of hydrocarbons, alcohols and/or ketons
10/14/1998EP0646106B1 Method for the simultaneous preparation of dicarboxylic acids and diamines by decomposing polyamides into their constituent monomers
10/14/1998CN1195657A Oxidizing process for hydrocarbon, alcohol and/or ketone
10/08/1998WO1998043946A1 Process for the preparation of n-(3-hydroxy-succinyl)-amino acid derivatives
10/07/1998EP0646107B1 Method for the simultaneous preparation of dicarboxylic acids and diamines from polyamides
10/06/1998US5817870 Catalytic oxidation
10/06/1998US5817868 Method and devices for controlling the oxidation of a hydrocarbon to an acid by regulating temperature/conversion relationship in multi-stage arrangements
10/01/1998WO1998026449A3 A method for purification of acids for use in semiconductor processing
09/1998
09/22/1998US5811460 Water soluble fullerenes with antiviral activity
09/22/1998US5811405 Pharmaceuticals, diagnostic agents
09/16/1998CN1193009A Process for making adipic acid and dibasic acid
09/11/1998WO1998039282A1 Low water diamine/dicarboxylic acid salt preparation
09/02/1998EP0525177B1 Unimolecular micelles and method of making the same
09/02/1998CN1192134A Topical vehicles containing solubilized and stabilized azelaic acid
09/01/1998US5801278 Low water diamine-dicarboxylic acid salt preparation
09/01/1998US5801275 Method for forming two terminal carboxylic acid groups from an ozonide
08/1998
08/20/1998WO1998035929A1 Dicarboxylic acid crystallizates
08/20/1998WO1998035925A1 Method for preparing cleaved products from castor oil or derivatives thereof
08/20/1998CA2280967A1 Method for preparing cleaved products from castor oil or derivatives thereof
08/20/1998CA2280592A1 Dicarboxylic acid crystallizates
08/19/1998EP0858835A1 Oxidation catalytic system and oxidation process
08/19/1998EP0690836B1 Carboxylic acid isomerisation method
08/19/1998CN1190950A Methods and device for making intermediate oxidation products by controlling conversions and temperatures in an atomized liquid
08/13/1998DE19705329A1 Dicarbonsäurekristallisate Dicarbonsäurekristallisate
08/12/1998EP0857712A1 Process for the preparation of malonic and alkylmalonic acids
08/04/1998US5789434 Derivatives of substituted 4-biarylbutyric acid as matrix metalloprotease inhibitors
07/1998
07/21/1998US5783738 Optically active diphosphines, preparation thereof according to a process for the resolution of the racemic mixture and use thereof
07/16/1998WO1998030530A1 Carboxylic acids and derivatives thereof and pharmaceutical compositions containing them
07/15/1998CN1187807A Method for manufacture of products containing disalts of formic acid
06/1998
06/30/1998US5773240 Optically active α-substituted carboxylic acid derivatives and method for producing the same
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