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| Number | Title | Issue Date |
| 5281751 | Synergistic production of carboxylic acids from alcohols A process for the production of an aliphatic carboxylic acid of the formula RCOOH, wherein R is an alkyl group having from 1 to 5 carbon atoms, comprises the catalytic reaction of an alcohol of formula ROH and carbon monoxide in the presence of a rhodium ... | 01/25/1994 |
| 5073657 | Vapor phase modifiers for oxidative coupling Volatilized metal compounds retard vapor phase alkane conversion reactions in oxidative coupling processes that convert lower alkanes to higher hydrocarbons.... | 12/17/1991 |
| 5047476 | Process for crosslinking hydrolyzable copolymers A process for crosslinking comprising the following steps: (a) admixing, in a processing zone, a copolymer containing at least one hydrolyzable silane moiety; a dihydrocarbyltin oxide; and (i) a carboxylic acid; (ii) a compound bearing at least one carboxylate moie... | 09/10/1991 |
| 5017635 | Kneaded moldable resin composition A novel kneaded moldable resin composition and the molding produced therefrom are described. The composition comprises an ethylene polymer, an organopolysiloxane, and a hydrocarbon compound expressed by the formula CH2 .dbd.CH(CH2) | 05/21/1991 |
| 5015701 | Composition of vinyl ester resin, hydroxyalkyl (meth)acrylate and a styrene Described herein are curable molding compositions comprising a mixture of: (a) a vinyl ester produced by the addition of an unsaturated monocarboxylic acid to a polyepoxide and having a molecular weight greater than 300; (b) acrylic or methacrylic acid or a functio... | 05/14/1991 |
| 5001274 | Hydroformylation process An improved process for the rhodium-catalyzed hydroformylation of olefins to aldehydes is described. The improvement provides a means for recovering valuable components in gaseous streams by scrubbing the streams with a stripped or cooled catalyst solutio... | 03/19/1991 |
| 5000861 | Stable emulsions containing amino polysiloxanes and silanes for treating fibers and fabrics A stable aqueous emulsion composition containing an amino-functionalized polyorganosiloxane containing at least two amino-functionalized groups per molecule, one or more silanes and optionally a hydroxy terminated polydiorganosiloxane; textiles treated wi... | 03/19/1991 |
| 5001248 | Silicone surfactants The invention relates to silicone surfactants having the general formula: MDx D'y M wherein M is a (CH3)3 SiO0.5 -- group; D is a --(CH3)2 SiO-- group; D is a --(CH3)(R2 | 03/19/1991 |
| 4999327 | Catalyst for regulating the molecular weight distribution of ethylene polymers A vanadium-based catalyst is treated with certain silicon-containing compounds as a means of narrowing and effectively regulating the molecular weight distribution of the polymers produced with the catalyst.... | 03/12/1991 |
| 4999412 | Silicone-urethane copolymers Linear silicone-urethane copolymers which contain tertiary amine or quaternary ammonium groups on the polymer backbone of the general formula: {R'NR"SiMe2 (OSiMe2)b OSiMe2 R"NR'CONHR"NHCO2 (Y)O2... | 03/12/1991 |
| 4999452 | Process for producing acrylic ester A process for producing acrylic ester by the catalytic esterification of a crude liquid stream of enriched acrylic acid recovered by the partial condensation of the reaction gas effluent from the catalytic oxidation of propylene and/or acrolein. The parti... | 03/12/1991 |
| 4999446 | Trimethoxysilane preparation via the methanol-silicon reaction with recycle A process for producing trimethoxysilane by reacting methanol and silicon metal in the presence of a copper catalyst, and optionally an inert solvent, in which the trimethoxysilane-methanol azeotrope is recycled, characterized by maintaining a 60% methano... | 03/12/1991 |
| 4997643 | Polymeric salt delivery systems A biocompatible, film-forming delivery system for the delivery of pharmaceutical or therapeutic actives to a desired topical site of a subject, the system including: an active salt compound, wherein the active salt compound is at least a partial salt of (... | 03/05/1991 |
| 4994498 | Tantalum-containing catalyst useful for producing alcohols from synthesis gas A catalyst useful for selectively converting a mixture of carbon monoxide and hydrogen to a mixture of lower alkanols consisting essentially of a mixture of molybdenum sulfide, an alkali metal compound and a tantalum compound.... | 02/19/1991 |
| 4994589 | Catalytic system for epoxidation of alkenes A process is provided for epoxidation of an alkene in the presence of an oxygen-containing gas which comprises contacting the alkene and the oxygen-containing gas under epoxidation conditions in the presence of at least one gaseous efficiency-enhancing me... | 02/19/1991 |
| 4994588 | Fluorine-containing catalytic system for expoxidation of alkenes A process is provided for epoxidation of an alkene in the presence of an oxygen-containing gas which comprises contacting the alkene and the oxygen-containing gas under epoxidation conditions in the presence of at least one gaseous efficiency-enhancing me... | 02/19/1991 |
| 4994534 | Process for producing sticky polymers A process for producing sticky polymers at polymerization reaction temperatures in excess of the softening temperature of the sticky polymers in a fluidized bed reactor catalyzed by a transition metal catalyst, which comprises conducting the polymerizatio... | 02/19/1991 |
| 4990654 | Production of acetate esters from alcohols using rhodium complex catalysts A process for the production of acetate esters by the catalytic reaction of an alcohol of the formula ROH and carbon monoxide in contact with a homogeneous catalyst system of rhodium metal atom, a phosphorus containing ligand in which there is present at ... | 02/05/1991 |
| 4988402 | Processes for enhancing fluorescence of tunable titanium-doped oxide laser crystals The Figure of Merit of titanium-doped oxide crystals suitable for use as a tunable laser is enhanced by treating the article at a temperature of about 50° C. to 80° C. below the melting point of the crystal in an atmosphere containing at least about 20 ... | 01/29/1991 |
| 4988660 | Double perovskite catalysts for oxidative coupling Alkali metal doped double perovskites containing manganese and at least one of cobalt, iron and nickel are useful in the oxidative coupling of alkane to higher hydrocarbons.... | 01/29/1991 |
| 4988783 | Ethylene polymerization using supported vanadium catalyst An ethylene polymerization catalyst comprising a supported precursor of vanadium trihalide/electron donor complex and alkylaluminum or boron halides, when combined with alkylaluminum cocatalyst and alkyl halide promoter, provides enhanced polymerization a... | 01/29/1991 |
| 4988784 | Catalyst for regulating the molecular weight distribution of ethylene polymers A vanadium-based catalyst is treated with certain phosphorus-containing compounds as a means of narrowing and effectively regulating the molecular weight distribution of the polymers produced with the catalyst.... | 01/29/1991 |
| 4988293 | Toughness coating for crystalline orthodontic brackets A single crystal orthodontic bracket is disclosed which is provided with an outer protective layer of a polycrystalline material so as to provide fracture toughness of the orthodontic bracket.... | 01/29/1991 |
| 4987190 | Scorch control in the grafting of diacid anhydrides onto high density polyethylene A composition comprising: (i) a homopolymer or copolymer of ethylene and one or more other alpha-olefins wherein the portion of the copolymer based on ethylene is at least about 60 percent by weight based on the weight of the copolymer, said polymers havi... | 01/22/1991 |
| 4985314 | Novel vinyl chloride resins and compositions incorporating such resins Novel vinyl chloride copolymers including a hydroxyalkyl acrylate or methacrylate or allyl alcohol, an epoxy-containing vinyl monomer and an acid functionality from either certain carboxylic acid-containing monomers or a phosphorus ester moiety in selecte... | 01/15/1991 |
| 4983736 | Amines catalysis using metallic polyphosphate condensation catalysts having a condensed structure This invention relates to a process for making amines by condensing an amino compound in the presence of a metallic polyphosphate condensation catalyst having a condensed structure. This invention also relates to an alkyleneamines producers composition ri... | 01/08/1991 |
| 4983222 | Vapor solvent decontamination of PCB transformer components A method for decontaminating PCB containing transformers. The transformer is initially cleaned using a vapor degreasing solvent. The internal parts are removed and given a second cleaning which combines vapor degreasing with mechanical tumbling. The trans... | 01/08/1991 |
| 4983562 | High activity catalyst system for the production of propylene polymers A catalyst system comprising: (i) a catalyst precursor, which includes: magnesium; titanium; a halogen, which is chlorine, bromine, or iodine, or a mixture thereof; one or two inside electron donors; and a cerium (IV) compound; (ii) a hydrocarbylaluminum cocat... | 01/08/1991 |
| 4982021 | Process for the production of alkylene glycols with metalate-containing solid Alkylene glycols are produced by the reaction of alkylene oxide with water in the presence of a metalate-containing solid wherein the metalate is in association with electropositive complexing sites on a solid support such as an anion exchange resin.... | 01/01/1991 |
| 4981882 | Method for enhancing encapsulation efficiency in coating particles in aqueous dispersions Aqueous dispersions of particles stabilized by a basic dispersant are rendered suitable for particle encapsulation or coating processes by polymerization from the aqueous phase by treatment with certain ethylenically-unsaturated carboxylic acids.... | 01/01/1991 |
| 4982041 | Double perovskite catalysts for oxidative coupling Alkali metal doped double perovskites containing manganese and at least one of cobalt, iron and nickel are useful in the oxidative coupling of alkane to higher hydrocarbons.... | 01/01/1991 |
| 4977199 | Photo curable blends of 2-methyoxytetrahydropyran and a cycloaliphatic diepoxide Photopolymerizable compositions, based on 2-methoxytetrahydropyran and 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexane carboxylate, which can be applied as coatings on substrates and photocured at high speeds.... | 12/11/1990 |
| 4977266 | Aminoethylethanolamine and ethylenediamine producers composition and method for producing same A continuously generated alkyleneamines producers composition comprising, based on 100% of the moles of the composition and exclusive of any MEA and water present, (a) about 15 to about 50 mole % AEEA, (b) about 15 to about 55 mole % EDA, (c) about 10 to about... | 12/11/1990 |
| 4973692 | Aminoethylethanolamine producers composition and method for producing same A continuously generated alkyleneamines producers composition comprising, based on 100% of the moles of the composition and exclusive of any MEA and water present, (a) about 50 to about 90 mole % AEEA, (b) less than about 3 mole % EDA but more than 0.01 mole %... | 11/27/1990 |
| 4973725 | Direct synthesis process for organohalohydrosilanes Direct Synthesis processes for the selective production of organohalohydrosilanes at high rates, selectivities and conversions by the catalytic reaction of activated silicon with mixtures of organohalides and hydrogen in the presence of controlled concent... | 11/27/1990 |
| 4970127 | Novel vinyl chloride resins and compositions incorporating such resins Novel vinyl chloride copolymers including a hydroxyalkyl acrylate or metacrylate or allyl alcohol, an acid functionality from carboxylic acid-containing monomers and optionally an epoxy-containing vinyl monomer in selected proportions provide suitable bin... | 11/13/1990 |
| 4970334 | Process for preparing esters of unsaturated alcohols A process for the catalytic dehydration of saturated 2,2,4-trisubstituted glycol monoesters at elevated temperatures to unsaturated 2,2,4-trisubstituted monoesters in the presence of a non-volatile acid catalyst.... | 11/13/1990 |
| 4967018 | Monoalkylene glycol production using mixed metal framework compositions A process for the catalytic hydrolysis of alkylene oxide to alkylene glycol using a hydrothermally stable, mixed metal framework catalyst composition selected from (a) material having the formula Mx2+ Qy3+ (OH) 2x+3y... | 10/30/1990 |
| 4963637 | Acid containing isocyanate-terminated prepolymers, salt prepolymers and polymers thereof The present invention is directed to novel isocyanate-terminated prepolymers of carboxylic acid grafted polyethers, salts of these prepolymers and fully reacted polymers formed therefrom. More specifically, the present invention relates to reacting an eth... | 10/16/1990 |
| 4963622 | Paraloid extrusion aids for high molecular weight HDPE film resins A process for improving bubble stability, reducing film gauge variation and reducing melt fracture during extrusion and formation of film from a high density polyolefin of molecular weight above 225,000 to about 450,000 which comprises blending with said ... | 10/16/1990 |
