Abstract: The present invention relates to a method and a device for controlling the viscosity of reaction solutions in the hydroformylation of olefin-containing mixtures.

Abstract: A process for stabilizing a phosphite ligand against degradation in a hydroformylation reaction fluid, said process comprising adding an epoxide to the reaction fluid, and further comprising separating one or more phosphorus acidic compounds from the reaction fluid by treating the reaction fluid with an aqueous buffer solution under conditions sufficient to neutralize and remove at least some amount of the phosphorus acidic compounds from the reaction fluid.

Abstract: [Object] To improve heat stability of diethylzinc which is used for a catalyst of polymerizing, an organic synthetic reaction reagent and a raw materials for providing a zinc film by MOCVD. And to offer the diethylzinc composition being superior in heat stability, even if it handles for a long term a metal zinc particle does not precipitate. [Means for Solving Problem] Use a diethylzinc composition added a compound which has particular carbon-carbon double bond to a diethylzinc.

Abstract: The disclosure relates to metal organic frameworks or isoreticular metal organic frameworks, methods of production thereof, and methods of use thereof.

Abstract: [Object] To improve heat stability of diethylzinc which is used for a catalyst of polymerizing, an organic synthetic reaction reagent and a raw materials for providing a zinc film by MOCVD. And to offer the diethylzinc composition being superior in heat stability, even if it handles for a long term a metal zinc particle does not precipitate. [Means for solving problem] Use a diethylzinc composition added a compound which has particular carbon-carbon double bond to a diethylzinc.

Abstract: The disclosure relates to metal organic frameworks or isoreticular metal organic frameworks, methods of production thereof, and methods of use thereof.

Abstract: Sol-gel inorganic porous particles can be formed with two set of pores with different average sizes. These inorganic porous particles are composed of an inorganic compound that provides an inorganic solid phase including an external particle surface. They also have a first set of pores wherein the pores have an average diameter of less than 100 nm and a second set of pores wherein the pores have an average diameter of at least 100 nm. The second set of pores contains stabilizing organic microgel particles. The first and second sets of pores are isolated from each other within the inorganic solid phase.

Abstract: Compounds, synthesis of, and methods for synthesizing metal alkoxide derivatives; and metal alkoxide derivatives for use as flame retardants are described. Group 13 metal alkoxides having flame retardant properties may be prepared by reacting the periodic table group 13 metalloid or metal trihydroxide with an alcohol.

Abstract: The present invention provides a method to effectively inhibit the oxidization of VO(acac)2 in solution for months. It is believed that VO(acac)2 forms a ?-complex with as many as three allylic alcohols which precludes reaction with any oxygen in the system. Although saturated and homo-allylic alcohols were also tested, this effect appears only in the allylic-alcohol based solutions. This ability to inhibit oxidation of VO(acac)2 allows these solutions to be used for making thermochromic VO2 film much more easily and economically as it avoids the requirement of operating under low oxygen level conditions. Thus the present invention provides a method of stabilizing vanadium oxyacetylacetonate (VO(acac)2) in solution against oxidation for extended periods of time, comprising the steps of mixing the oxyacetylacetonate precursor in an allylic alcohol prior to spin-coating for VO2 film formation. The allylic alcohol may be (?-methallyl alcohol.

Abstract: The present invention provides a novel mononuclear transition metal compound, a novel binuclear transition metal compound, a novel organic amine or phosphorous compound, and a method for preparing the same. The mononuclear transition metal compound according to the present invention is configured such that a cyclopentadienyl group and an amido or phosphorous group are bridged via a phenylene bridge. The binuclear transition metal compound according to the present invention is configured such that the two bridged mononuclear transition metal compounds configured such that a cyclopentadienyl group and an amido or phosphorous group are bridged via a phenylene bridge are linked via a bridging group located at the phenylene bridge. According to the present invention, the mononuclear transition metal compound, the binuclear transition metal compound, the organic amine or phosphorous compound can be prepared in a simple manner by using suzuki-coupling reaction with a high yield.

Abstract: The present invention provides method 1 for producing a trialkyl gallium comprising the steps of reacting gallium, magnesium, and an alkyl halide in an ether, and diluting during the reaction the reaction system with an ether; method 2 for producing a trialkyl gallium comprising the steps of heating in a vacuum a mixture of magnesium and molten gallium, and reacting the mixture with an alkyl halide in a solvent; and method 3 for producing a trialkyl gallium comprising the step of reacting an alkyl metal with an alkylgallium halide compound represented by the formula Ga2RmX6-m wherein R is a methyl or ethyl group, X is a halogen atom, and m is an integer from 1 to 5.

Abstract: Stable rare earth tris (organophosphate) solutions comprise a rare earth tris (organophosphate) and a hydrocarbon solvent. From about 2% to about 10% rare earth element, preferably from about 3% to about 8%, is present in the solutions. The rare earth tris (organophosphate) solutions are stable from precipitation of the rare earth tris (organophosphate) for at least about fifteen (15) days, preferably for at least about twenty (20) days and most preferably at least about thirty (30) days. A process for preparing these solutions is described herein. A stabilizing additive, acid, glycol or mixtures thereof, is utilized to inhibit precipitation. The molar ratios of free acid, glycol and/or water to the rare earth element are controlled to inhibit precipitation.

Abstract: A method of solvating metal ions in an aromatic organic liquid. The method includes adding an ammonium salt having an organic acid reagent to the aromatic organic liquid. The organic acid reagent comprises a carboxylate having eight (8) or less carbon atoms. Thereafter, an aqueous solution comprising a metal salt is added to the aromatic organic liquid comprising the ammonium salt and the organic acid reagent. As a result, at least 10% by weight of metal ions is solvated in the aromatic organic liquid.

Abstract: Stable rare earth tris (organophosphate) solutions comprise a rare earth tris (organophosphate) and a hydrocarbon solvent. From about 2% to about 10% rare earth element, preferably from about 3% to about 8%, is present in the solutions. The rare earth tris (organophosphate) solutions are stable from precipitation of the rare earth tris (organophosphate) for at least about fifteen (15) days, preferably for at least about twenty (20) days and most preferably at least about thirty (30) days. A process for preparing these solutions is described herein. A stabilizing additive, acid, glycol or mixtures thereof, is utilized to inhibit precipitation. The molar ratios of free acid, glycol and/or water to the rare earth element are controlled to inhibit precipitation.

Abstract: A process for stabilizing a fluorophosphite ligand in a hydroformylation reaction mixture having an &agr;-olefin, hydrogen, carbon monoxide and a catalyst composition having a combination of a rhodium containing compound and one or more fluorophosphite compounds having the general formula: wherein R1 and R2 are hydrocarbyl radicals which contain a total of up to about 40 carbon atoms, the process includes the step of adding to the reaction mixture an epoxide in a sufficient amount to reduce the degradation of the fluorophosphite ligand.

Abstract: An improved aqueous cathodic electrocoating composition having a binder of an epoxy-amine adduct which is an epoxy resin that has been reacted with an amine, a blocked polyisocyanate crosslinking agent and an organic or inorganic acid as the neutralizing agent for the epoxy amine adduct; where the improvement is a catalyst of an alkyl tin oxide that has been dissolved with an organic or inorganic acid to provide a clear cathodic electrocoating composition.

Abstract: An organic aluminoxy compound which shows 27Al nuclear magnetic resonance spectrum (27Al-NMR spectrum) having an A1/A2 ratio of at most 0.1, wherein A1 is area of a region encompassed by a segment of a line which connects a local minimum point existing between a continuous curve “a” containing a peak appearing at around 150 ppm and a continuous curve “b” containing a peak appearing at around 60 ppm to the point where the above curve “b” comes into contact with the base line and also by the above curve “b” and A2 is area of a region encompassed by the above curves “a” and “b” and also by the base line; an organic aluminoxy compound containing at least 5%, expressed in terms of aluminum atom, of a portion insoluble in a mixed solvent of toluene and hexane in a ratio by volume of 2:5 at 30° C. or lower; and a catalyst for producing a polymer comprising any of the above organic aluminoxy compounds and a transition metal compound.

Abstract: A low temperature molten ionic liquid composition comprising a mixture of a metal halide and an alkyl-containing amine hydrohalide salt can be used in linear alkylbenzene formation. The metal halide is a covalently bonded metal halide which can contain a metal selected from the group comprised of aluminum, gallium, iron, copper, zinc, and indium, and is most preferably aluminum trichloride. The alkyl-containing amine hydrohalide salt may contain up to three alkyl groups, which are preferably lower alkyl, such as methyl and ethyl.

Abstract: Stabilization of alkyltin compounds that are liquid at room temperature, especially alkyltin trihalides, is achieved by addition of 0.1 to 10 wt. % of one or more compounds that are soluble in the alkyltin compounds and that are reactive with water.

Abstract: Zwitterionic biscyclopentadienyl, Group 4 transition metal complexes formed with conjugated dienes useful as catalysts for polymerizing olefins, diolefins and/or acetylenically unsaturated monomers.

Abstract: A precious metal salt of a low molecular humic acid containing 1 to 5% by weight of the precious metal processes for their preparation and a method of stabilizing alkali metal humate and their medical uses.

Abstract: A catalyst precursor is provided that is useful in the selective hydrogenation of olefinic unsaturation in polymers or copolymers. The precursor comprises a palladium salt that is complexed with a complexing agent selected from the group consisting of organic phosphates, dialkylidene acetones, and tetraalkyl ammonium hydroxides. The catalyst precursor may be used in batch, step-wise addition, or continuous systems.

Abstract: Method of enhancing the water solubility of dry zinc methionine complex salts by reacting in water soluble zinc salt with mentionine in the presence of ferric ion with the amount being between about 15 mole percent and 30 mole percent of the amount of zinc present.

Abstract: This invention provides a process for stabilizing a phosphite ligand against degradation in a homogeneous reaction mixture containing a Group VIII transition metal catalyst and the phosphite ligand, said process comprising adding to the reaction mixture an epoxide in an amount from 0.001 to 5 weight percent based on the total weight of the reaction mixture to reduce the degradation of the ligand.

Abstract: Novel volatile barium complexes are disclosed which are very stable and evaporate cleanly at elevated temperatures. Such complexes are highly suited for use as a barium source in OMCVD processes.

Abstract: Method for preparing a platinum-organosiloxane complex which comprises reacting a platinous halide with an organo-siloxane having from 2 to 4 silicon-bonded organic groups containing terminal olefinic unsaturation, the reaction being carried out in the presence of a polar organic liquid, for example dimethylformamide or butan-2-one, which is at least a partial solvent for the platinous halide.The acomplexes are useful as catalysts for hydrosilylation reactions.

Abstract: A method of stabilizing a sample of colostrum or milk which is intended for immunochemical examination, by adding a stabilizing system which comprises the following components:(a) a microbiological preservative,(b) a buffer solution which buffers the sample at a pH between 5 and 8, preferably between 5.5 and 6.5, and(c) one or more non-ionic surface-active substances, the components (a), (b) and (c) being selected in such manner that they do not interfere with the immunochemical examination to be carried out. The invention also relates to the stabilization kit to be used for this purpose.

Abstract: A process for the preparation of an amine complex of a metal halide which comprises reacting said metal with an amine hydrohalide. The process can be extended to the use of metals such as aluminum, magnesium, zinc, iron, and the like.

Abstract: Monolayer or multilayer systems containing a 1,5-diarylpenta-1,4-dien-3-one-palladium(O) complex of formula I ##STR1## wherein both the groups R.sup.1 independently of the other are hydrogen or C.sub.1 -C.sub.4 alkyl or both the groups R.sup.1 together are a polymethylene chain containing 2-4 C atoms, R.sup.2 is hydrogen, C.sub.1 -C.sub.22 alkyl, --N(R.sup.4).sub.2, --NO.sub.2 or --CN, R.sup.3 is C.sub.1 -C.sub.22 alkyl, R.sup.4 is C.sub.1 -C.sub.22 alkyl, k=1-3.5, m=1-3 and p=1-3, are excellently suitable for electroless metallization, as sensors for H.sub.2 detection or as catalytically active surfaces for hydrogenation processes.

Abstract: The invention relates to cyclic organometallic compounds which are intramolecularly stabilized and also to their use to produce thin films and epitaxial layers by gas-phase deposition.

Abstract: A method is provided for stabilizing alkylenebisdithiocarbamates, such as 1,2-ethylenebisdithiocarbamates, (EBDC) by mixing the EBDC with formaldehyde or formaldehyde releasing agents (donor) and a co-polymerization agent which forces the polymerization reaction of formaldehyde and ethylenethioureas toward completion to reduce and stabilize the content of and inhibit the formation of ethylenethiourea (ETU) in the EBDC. Paraformaldehyde as donor is preferably added in an amount of about 0.1 to 2 weight percent based upon the EBDC, together with a co-polymerization agent such as melamine or hydroquinone. The stabilized EBDC product contains aldehyde, co-polymerization agent, mono- and /or dimethylolethylenethioureas and polymerization products thereof, and less than about 0.015 weight percent ETU per se.

Abstract: A process for preparing a zinc dialkyldithiophosphate which comprises reacting phosphorus pentasulfide with an aliphatic monohydric alcohol in the presence of a hydrocarbyl polyol followed by a reaction with a basic zinc salt to produce a stabilized zinc dialkyldithiophosphate is provided.

Abstract: The present invention provides chemically stable colloidal antimony oxide which has been treated with a particular organosilicon compound in the ratio of from 0.5 to 25 weight % based on the antimony and whose pH has been regulated to within the range of from 2 to 12.

Abstract: A sulfate-free clear green solution of chromium(III) propionate is prepared by mixing aqueous propionic acid containing up to 55 weight percent propionic acid with a chromium(VI) oxidant, such as a dichromate or chromate, and a sulfur-containing reductant, such as a bisulfite, which on reacting yields two phases: a lower sulfate-containing phase for discard or recycle and an upper phase solution of sulfate-free clear green propionate-sequestered chromium(III), the latter phase being stabilized with additional acid. The upper phase solution is useful for crosslinking polymeric viscosifiers such as partially hydrolyzed acrylamide-based polymers and the like in permeability contrast corrections in enhanced oil recovery operations.

Abstract: A process for preparing clear green chromium(III) propionate solutions which comprises admixing such as propionic acid with water, a chromium(VI) source such as dichromate, adding thereto a nitrite, such as sodium nitrite, to reduce the chromium(VI) to chromium(III), in the presence of excess acid, preferably propionic acid, optionally combined with additional acid such as muriatic acid, to produce a stable solution useful with polymers, such as partially hydrolyzed acrylamide-based polymers, in permeability contrast correction procedures for high permeability streaks in oil field treatments.

Abstract: Buffered aqueous solution of thimerosal wherein the buffer is citric acid and sodium citrate having a pH between 3.5 and 7.