Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 451 - 500 out of 2,566

Document Document Title
WO/1997/009296A1
Alkenyl-substituted dicarboxylic acid or anhydride ester derivatives, useful as dispersant additives in lubricating oil compositions, having an alkenyl group derived from an atactic propylene oligomer substantially of formula (I), where ...  
WO/1997/000846A1
Dicarboxylic acid and diamine are recovered from polyamides by hydrolysis with nitric acid, followed by separation of the dicarboxylic acid, and hydrogenation of the nitric acid, and then recovery of the diamine.  
WO/1996/040610A1
Methods and devices for making intermediate oxidation products by atomizing a first liquid containing a reactant into a gas containing an oxidant in a manner to form an intermediate oxidation product different than carbon monoxide and/or...  
WO/1996/039119A1
A completely solubilized topical composition of azelaic acid in a glycol base which is stable at normal temperatures and pressures and which is useful as a commercial substitute for dispersed azelaic acid preparations.  
WO/1996/037437A1
A process for preparing basic cobaltous carbonates having the general formula: Co[(OH)2]a[CO3]1-a is disclosed, as well as cobaltous carbonates and cobaltous oxalate carbonates obtained by this process and their use.  
WO/1996/035657A1
The present invention relates to a method for manufacture of products containing disalts of formic acid. Potassium hydroxide, carbonate, bicarbonate or formate, sodium hydroxide, carbonate, bicarbonate or formate, cesium hydroxide, carbo...  
WO/1996/031455A1
A method for oxidising liquid-phase hydrocarbons, alcohols or ketones in the presence of a heterogeneous catalyst. The method particularly enables the oxidation of a liquid-phase hydrocarbon, alcohol or ketone to carboxylic acid using mo...  
WO/1996/024557A1
The present invention concerns cobaltous oxide containing metallic cobalt, methods of producing the same and the use thereof.  
WO/1996/024556A1
The present invention concerns cobaltous oxide containing metallic cobalt, methods of producing the same and the use thereof.  
WO/1996/022963A1
A crystalline salt of lysine hydrochloride, succinic acid or alkali metal salt, wherein the molar ratio of lysine to succinic ion calculated as succinic acid is between about 3 and 10. The salt has the appearance of ordinary table salt c...  
WO/1996/022271A1
The present invention is a process for the scission and oxidation of ozonide materials. The process comprises introducing an oxygen-containing gas stream into an agitated liquid body in the form of fine bubbles.  
WO/1996/020909A1
A process for separating impurities from aqueous solutions of hexane diol-1,6 preliminary compounds like adipine and 6-hydroxy capronic acid, comprising the addition of at least one carboxylic acid to a solution (a) of hexane diol-1,6 an...  
WO/1996/020202A1
Optically active diphosphines and a method for preparing same by resolution of the racemic mixture of said diphosphines into optically active isomers, are disclosed. Novel optically active diphosphines of bis-[1-phospha-2,3-diphenyl-4,5-...  
WO/1996/019409A1
Carbonyl fluoride is produced by reacting fluorine-containing compound such as metal fluoride with CO in an excited state, such as produced by a plasma, to obtain a gaseous reaction mixture, which can then be quenched to obtain the COF2.  
WO/1996/018597A1
Crystallization of adipic acid using low intensity ultrasonic agitation during crystallization results in purer product that is more readily handled. Apparatus for carrying out the process is also disclosed.  
WO/1996/015096A1
Inhibitors for matrix metalloproteases, pharmaceutical compositions containing them, and a process for using them to treat a variety of physiological conditions. The compounds of the invention have the generalized formula (T)xA-B-D-E-G, ...  
WO/1996/014288A1
Copper and vanadium catalyst components are recovered and dialkyl esters of dicarboxylic acids are synthesized from an adipic acid synthesis waste stream by precipitating the catalyst metals with an alcohol selected from the group consis...  
WO/1996/011179A1
A method for preparing carboxylic acids including (n+1) carbon atoms, or the related esters, by liquid phase carbonylation of an alcohol including (n) carbon atoms, in the presence of a uniform catalytic system based on at least one irid...  
WO/1996/010008A1
Waste nylon 6 and/or nylon 6,6 are converted to adipic acid monomer by depolymerization with an aliphatic monocarboxylic acid to form alkylamides followed by oxidation of the alkylamides to adipic acid.  
WO/1996/003365A1
Method of recycling a cobalt-containing catalyst in a reaction involving the direct oxidation of cyclohexane into adipic acid using an oxygen-containing gas. The method is characterized in that the reaction mixture, obtained in a precedi...  
WO/1995/034525A1
An optically active 'alpha'-substituted carboxylic acid derivative represented by general formula (I) wherein R1 represents hydroxy, -C(=CH2)-COOR3 or -CH(CH3)-COOR3; R2 represents methyl or chloro; R3 represents hydrogen or C1-C6 alkyl;...  
WO/1995/023781A1
Cyclohexyladipates are formed in a staged reactor, e.g. a reactive distillation column. A mixture containing a major amount of benzene and a minor amount of cyclohexene is fed to the lower portion of the reaction zone and adipic acid is ...  
WO/1995/023201A1
The invention concerns the use of fatty-acid amide alkyleneaminocarboxylic acids of the general formula (I), or water-soluble salts thereof, in aqueous lubricant solutions for conveyor lines in filling plants for foods and/or drinks, as ...  
WO1995021145A3  
WO/1995/021145A2
Provided is a method for producing long chain 'alpha','omega'-dicarboxylic acids by fermentation from long chain alkanes and recovering the produced dicarboxylic acids. Also provided is a novel microorganism useful for carrying out the m...  
WO/1995/020541A1
A process for the conversion of N2O to NO by heating a gas stream containing N2O by contact with a heated heat exchange surface to a temperature of about 400 to 700 degrees C, and then heating the gas to a temperature of about 850 degree...  
WO/1995/019949A1
A water soluble derivative of buckministerfullerene (C60) having antiviral and virucidal properties is used to inhibit human retroviral replication and infections. The derivatized fullerene is symmetrically substituted with polar organic...  
WO/1995/018783A1
Process for the preparation of a linear 'omega'-formyl-carboxylic acid or a corresponding linear formyl-nitrile compound starting from an internally unsaturated C4-C12 carboxylic acid or a corresponding ester or nitrile by means of hydro...  
WO/1995/017963A1
Process for producing an iridium solution, characterized in that a carbonylated iridium compound is contacted, in liquid phase, with hydriodic acid or its precursor in the presence of a solvent, at a global pressure of 1 to 5 bars and at...  
WO/1995/009830A1
Method for the preparation of mono or di_2-substituted cyclopentanone characterized in that it consists in performing in sequence four stages (a) to (d) which can be successively carried out, if desired, in the same reactor: (a) addition...  
WO/1995/004026A1
Compounds of general formula (I) characterised in that R1 and R2 are independently selected from the group consisting of COOR, CN, aryl, substituted aryl, COOH, halogen, C(O)NHR4, C(O)NR5R6; X and Y are independently selected from the gr...  
WO/1995/004109A1
Aqueous dispersions which are particularly well suited for use as aqueous ink jet ink compositions having an aqueous carrier medium which comprises water or a mixture of water and at least one organic solvent; a particulate solid, prefer...  
WO/1994/029413A1
Ashless dispersants are formed using copolymers of propylene characterized in that they are liquid substantially linear polymers, they have stereo-irregularity in the polymer chain, at least 60 mol percent of the polymer has a terminal v...  
WO/1994/024102A1
Waste nylon 6 and/or nylon 6,6 are treated with aliphatic monocarboxylic acid to depolymerize the polymer to desirable monomer.  
WO/1994/024083A1
A process for producing adipic acid from cyclohexene oxide in an industrially advantageous manner, which comprises hydrating cyclohexene oxide into a mixture of 1,2-dihydroxycyclohexane with an oligomer represented by formula (1), and ox...  
WO/1994/021586A1
A method for isomerising carboxylic acids and particularly branched acids into the corresponding straight acids. In particular, the method is for isomerising at least one branched saturated carboxylic acid by heating it in the presence o...  
WO/1994/013616A1
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 compou...  
WO/1994/010122A1
A process for the preparation of carboxylic acids and esters thereof, comprises the operation of mixing an unsaturated fatty acid or corresponding ester with an oxidative substance, in the presence of a catalyst belonging to the group co...  
WO/1994/008939A1
A method for hydroxycarbonylating pentenoic acids, wherein one or more pentenoic acids are hydroxycarbonylated into adipic acid with carbon monoxide and water in the presence of an iridium and/or rhodium based catalyst and at least one i...  
WO/1994/007833A1
The present invention relates to a process for the preparation of C5-C8 aliphatic dibasic acids through oxidation of corresponding saturated cycloaliphatic hydrocarbons by: (1) reacting, at a cycloaliphatic hydrocarbon conversion level o...  
WO/1994/006745A1
A method for making a valproic acid derivative comprising a functionalized spacer arm attached to a delta carbon atom of a valproic acid molecule is disclosed. The method proceeds by attaching a spacer arm joined to an inorganic moiety t...  
WO/1994/004269A1
An improvement in the oxidation catalyst used for the partial oxidation of n-butane and containing vanadium and phosphorus, zinc, lithium and molybdenum mixed oxides which comprises carrying out the crystallization step under static cond...  
WO/1994/002245A1
New titanium zeolite Beta catalysts which have been found to be useful as catalysts for the oxidation of organic compounds using organic hydroperoxides as oxidation catalysts. They are particularly useful as ring opening oxidation cataly...  
WO/1994/002128A1
Compounds of alpha,w dicarboxylic acids of formula (I) in which X and Y, which may be the same or different, are hydrogen, halogen, C1-C6-alkyl, C1-C6-alkoxy, hydroxy, cyano, carboxyl, C1-C6-alkoxycarbonyl or carbamoyl, R1 and R2, which ...  
WO/1994/000385A1
High temperature superconductors (e.g. Y-Ba-Cu-O) can be formed at commercial quantities with high phase purities by conducting the coprecipitation process at a constant pH. By selecting a precipitate (e.g. oxalates) which confers plasti...  
WO/1993/025514A1
Disclosed is a method for the simultaneous preparation of dicarboxylic acids and diamines from (a) polymers based on polyamides made by reacting dicarboxylic acids or derivatives thereof with diamines or (b) compounds containing essentia...  
WO/1993/025299A1
The invention concerns the electrochemical preparation of dicarboxylic acids by subjecting an aqueous solution containing essentially the alkali-metal salt of a dicarboxylic acid of the general formula (I): HOOC-(CH¿2?)¿n?-COOH, in whi...  
WO/1993/025513A1
Disclosed is a method for the simultaneous preparation of dicarboxylic acids and diamines from (a) polymers based on polyamides made by reacting dicarboxylic acids or derivatives thereof with diamines or (b) compounds containing essentia...  
WO/1993/012064A1
The method is carried out in a two-phase aqueous-organic system in which the organic phase contains the unsaturated fatty acid and/or the esters thereof and the aqueous phase contains hydrogen peroxide. The oxidative cleavage is carried ...  
WO/1993/012063A1
A process for the preparation of adipic acid from pentenoic compounds by hydrocarboxylation using an iridium catalyst, an iodide promoter, water, carbon monoxide and a carboxylic acid solvent.  

Matches 451 - 500 out of 2,566