Matches 101 - 150 out of 284 < 1 2 3 4 5 6 >
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4349485 Catalytic aromatic carbonate process using manganese tetradentate redox co-catalysts  
An enhanced catalytic aromatic carbonate process which comprises contacting a phenol, carbon monoxide, an oxidant, a base, the Group VIIIB element selected from ruthenium, rhodium, palladium,...
4343745 Process for solubilizing organic or mineral salts in organic solvents  
The invention provides a process for solubilizing an organic or mineral salt in an organic solvent, said process comprising contacting an organic or mineral salt of the formula A - M + , wherein A...
4338254 Process for the preparation of cobalt (III) acetylacetonate  
A process for the preparation of cobalt (III) acetylacetonate by oxidation of cobalt (II) acetylacetonate by means of hydrogen peroxide in the presence of the stoichiometrically required amount of...
4337335 Transition metal salt complexes of polyamino organic compounds  
Described are transition metal salt complexes of available neighboring amino and hydroxyl group pairs in polyamino organic compounds, their preparation, and use as intermediates in the preparation...
4337210 Process for the preparation of cobalt (II) acetylacetonate  
An improved process for the preparation of cobalt (II) acetylacetonate by reaction of cobalt (II) compounds with acetylacetone at elevated temperature is disclosed, wherein the reaction is carried...
4334051 Heat resistant polyvanadiosiloxanes and a process for their production  
A polyvanadiosiloxane being a polymer of which the main chain skeleton consists of Si-O bonds and V-O bonds, characterized by side chains directly attached to the silicon atom being at least one...
4328379 Homologation process  
Disclosed is an improved process for the homologation of alkanols to obtain the next higher alkanol homolog by the cobalt-catalyzed reaction of an alkanol reactant with carbon monoxide and hydrogen...
4313851 Liquid, cold-stable titanium catalyst preparation  
A cold-stable catalytically active solution of diisopropoxy-bis (2,4-pentanedionato)-titanium(IV) in isopropanol, said solution containing 0.05 to 0.15 mol of water per mol of said titanium compound.
4303578 Organo-antimony compounds  
Organo-antimony compounds of the formula I ##STR1## wherein R is hydrogen or C 1 -C 18 acyl, R' is C 1 -C 20 alkyl or C 1 -C 18 acyl, and X is sulfur or oxygen. The compounds are stabilizers...
4279829 Metal complex catalysts  
Hydroperoxides are catalytically decomposed using a novel metal complex of the formula: ##STR1## wherein M is a positively charged metal or metal compound; Z is S, O, P, S--P, or S--S; L is...
4263333 Curcumin-metal color complexes  
A complex, and a process for preparing said complex, formed by the reaction of curcumin, turmeric, with certain metal ions. The metal-curcumin coloring complex is water soluble and capable of...
4244842 Nickel and cobalt chelate complexes and their use  
The invention provides nickel and cobalt chelate complexes of a nickel or cobalt salt and a succinosuccinate of the formula I ##STR1## wherein R represents a substituted or unsubstituted...
4187241 Metal phosphine complex  
Novel Group IB and IIB metal phosphine complexes are disclosed. These complexes are reacted with rhodium complex precursors to form useful enantioselective hydrogenation catalysts. Also disclosed...
4180386 Hexacoordinated transition metal compounds containing at least one polyfluoroalkyl substituent  
Hexacoordinated transition metal compounds, useful as antiknocks, having the structure ##STR1## wherein M is a divalent metal selected from the group Mn, Fe, Co and Ni, L 1 and L 2 are the...
T989005 Nickel organic compositions to improve dyeability of polymers  
Nickel organic compositions prepared from a nickel salt of a 1,3-diketone of the formula ##STR1## wherein R and R' are independently C 1 -C 8 alkyl; and sulfonyl dialkylphenols of the formula...
4170602 Method of producing acicular metal crystal  
Improved processes and products based on the discovery that metal atoms in complex relationship with complexing agents can be used to moderate the formation of organic salt seed crystals which...
4157975 Electrical insulators having increased resistance to partial discharges  
The invention relates to electrical insulators having increased resistance to partial discharges and electrical equipment comprising such electrical insulators. These electrical insulators are...
4150047 Process for preparing halogenated metal chelates  
This invention relates to an improved process for preparing halogenated metal chelates of beta-dicarbonyl compounds, particularly the tris-brominated acetylacetonates. The process comprises passing...
4148940 Method for depositing films containing cobalt oxide  
Improved methods are disclosed for depositing metal oxide films from coating compositions containing dehydrated cobaltous acetylacetonate.
4147556 Nonflammable beta diketonate composition  
A composition suitable for producing a metal oxide coating on the surface of a heated refractory substrate is disclosed. The composition comprises a metal beta diketonate dissolved in a...
4141911 Production of polynuclear dicarboxylatotetrachromium (III) complexes  
Polynuclear dicarboxylatotetrachromium (III) complexes are produced by reacting a dicarboxylic acid with a monobasic chromic (III) salt in a proportion of 4 moles of monobasic chromic (III) salt to...
4138385 Substituted acetylacetonate cobaltic promoters for unsaturated polyester resin  
This invention relates to an improvement in a process for curing unsaturated polyester resins, preferably chemically thickened with a Group II metal oxide or hydroxide, and to the resulting...
4136097 Process and promoting agents for the preparation of loweralkyl 2-(N-R'-pyrryl)-alpha-loweralkanoic acid esters  
A process for the preparation of loweralkyl 2-(N-R'-pyrryl)-α- loweralkanoic acid esters in increased yield and/or isomeric purity, and copper (II) 1,3-diketonate, copper (II) salicylaldehyde,...
4136254 Process of selectively blocking amino functions in aminoglycosides using transition metal salts and intermediates used thereby  
Selective blocking of some amino groups in a polyamino organic compound having at least one pair of available neighboring hydroxyl and amino groups is effected by first preparing in situ transition...
4115420 Catalytic conversion of thallium (I) to thallium (III)  
A monovalent thallium compound is converted to a trivalent thallium compound by treating the thallium (I) compound with molecular oxygen in the presence of a Group VIII noble metal catalyst to...
4111678 Foliar feeding organometallic composition  
Disclosed is a foliar feeding spray composition for supplying trace metals to plants comprising a thermally-treated trace metal chelate dissolved in a hydrocarbon mineral oil carrier having a...
4055714 Azo free radical initiators containing ultraviolet light stabilizing groups  
Compounds which contain azo or peroxide linkages as well as the radical of an ultraviolet light stabilizing group are described. These compounds function as polymerization initiators which cause an...
4017429 Preparation of 2-hydroxyalkyl esters  
This patent describes the catalytic promotion of the reaction of oxirane-containing compounds with carboxylic acid compounds at high, ambient, and low temperature. Specifically, this patent...
4015980 Use of fluorinated β-diketones in the solvent extraction of zinc  
Zinc is extracted from aqueous ammoniacal solutions using fluorinated β-diketones of the structure ##STR1## where n is a whole integer of 1 to 4, m is 0, 1 or 2 and R is an alkyl group of 1-25...
4008260 Process for preparing cobalt(III)acetylacetonate  
Process for preparing cobalt(III)acetylacetonate comprising the steps of adding to cobalt(II)acetylacetonate in an organic solvent, at least the stoichiometric amount of acetylacetone, oxidizing...
3972868 Method for selectively guiding and limiting the reactions of hydroxyl compounds  
The present invention relates to a method for producing, from a hydroxyl compound, a sequence of metal derivatives, which are subsequently made to react selectively for a certain purpose. The...
3968135 Chromium salt catalysts  
This patent describes the catalytic promotion of the reaction of oxirane-containing compounds with carboxylic acid compounds at high, ambient, and low temperature. Specifically, this patent...
3960909 Process for preparing palladium(II)acetylacetonate  
A process for preparing palladium(II)acetylacetonate having a low content in organically linked chlorine by reaction of acetylacetone with palladium dichloride or the complex...
3946057 Preparation of metal complexes of 1,3-diketones  
Process for preparing metal complexes of organic 1,3-diketones, which comprises, reacting in the presence of an alkylene oxide, a metal halide or hydrates thereof, and an organic 1,3-diketone.
3919275 Chelated beta dicarbonyl compounds  
Beta dicarbonyl compounds are prepared by reacting an enol ester with aluminum chloride in the presence of an inert solvent at a temperature range of 20° to 50°C. An isopropenyl ester of an...
3917722 Process for condensation of alcohols  
A process for producing higher molecular weight alcohols by condensing at least one lower molecular weight primary alkanol having a methylene group adjacent the hydroxylated carbon atom in liquid...
3901939 Process for the preparation of organic compounds  
A process for preparing dimerization products having the formula X -- (A) 2 -- X in which A is a divalent radical such as --CH 2 --, and X is a functional group such as --NO 2 , wherein a...
3895041 Metallised pigments  
An unsymmetrical compound having either the formula: ##SPC1## Wherein M is a transition metal atom, X and Y are the same or different, and each is hydrogen or each represents a non water...
3894164 Chemical vapor deposition of luminescent films  
Method for depositing a luminescent film comprising vaporizing into a nonreactive carrier gas at least one betadiketonate of yttrium, lanthanum, gadolinium, and lutetium, and at least one...
3888895 Production of titanium acetylacetonate bis(dimethylamine)  
A novel chelated ester of orthotitanic acid is provided having the chemical structure of titanium acetylacetonate bis(dimethylamine). The titanium chelate may be formed by reacting...
3884979 Synthesis of unsaturated diketones  
This invention relates to a process for the preparation of 2-alkenyl-4-hydroxy-3-methyl-2-cyclopenten-1-ones from the reaction product of 2,4-pentane dione and a 2-propen-or 2-propyn-1-ol...
3867418 EUROPIUM COMPLEX OF 1,1,1,2,2,6,6,7,7,7-DECAFLUORO-3,5-HEPTANEDIONE  
A paramagnetic shift reagent, consisting of the europium (Eu) complex of 1,1,1,2,2,6,6,7,7,7-decafluoro-3,5-heptanedione [H(FHD)], said complex having the general formula Eu(FHD) 3 .
3864407 Catalytic Process For Producing Higher Molecular Weight  
A process for producing higher molecular weight alcohols by condensing at least one lower molecular weight primary alkanol having a methylene group adjacent the hydroxylated carbon atom in liquid...
3856839 ALKANEDIOXY TITANIUM CHELATES  
Alkanedioxy titanium chelates have the formula: Wherein R 2 is a radical selected from the group consisting of hydrogen, hydrocarbyl having not more than about 8 carbon atoms, carboxyalkyl and...
3856750 POLYOLEFINS STABILIZED WITH NICKEL OR COBALT COMPLEXES OF HALOGENATED MONO OR DITHIO BETA DIKETONES  
Polyolefin resin compositions having improved ultra violet and thermal stability properties are obtained by incorporating with the resins small amounts of a cobalt or nickel complex of a partially...
3843691 CATALYTIC EPOXIDATION WITH MOLECULAR OXYGEN  
Direct epoxidation of olefins is carried out in the liquid phase with molecular oxygen in the presence of transition metal complexes of fluorinated diketones. The additional presence of carboxylic...
3835170 HYPOTENSIVE AGENT, OUDENONE, ITS SALTS AND PROCESSES FOR PRODUCTION AND PREPARATION THEREOF  
A hypotensive compound designated oudenone and metal salts of oudenone, oudenone being produced by a process which comprises cultivating a strain of a mushroom in an aqueous nutrient medium until...
3716567 SIMULTANEOUS PRODUCTION OF ALCOHOLATES AND TRIVALENT TITANIUM COMPLEXES OF BETA-DIKETONES  
Tetravalent titanium alcoholate-beta diketone complexes, e.g. titanium isopropylate-triacetylacetonate, are reacted with an alkali metal amalgam in a non-polar solvent to reduce the titanium to...
3700710 METHYLENE BIS(ALUMINUM DIHALIDES) USEFUL AS POLYMERIZATION CATALYST COMPONENTS  
An electrolytic process is described for making certain bis-(halometal)methanes such as bis(dichloroaluminum)methane, Cl 2 AlCH 2 AlCl 2 , which is a new compound, and these compounds can be...
3697642 METHOD OF PROTECTING THE SKIN FROM ULTRAVIOLET RADIATION WITH TITANIC ACID AND ESTERS OF TITANIC ACID  
An effective ultra-violet absorber composition and process for controlling sunburn by applying to the skin a composition which comprises a hydrated, substantially transparent gel represented by the...
Matches 101 - 150 out of 284 < 1 2 3 4 5 6 >