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| Number | Title | Issue Date |
| 4871706 | Catalyst for the ammoxidation of paraffins Disclosed is the reaction of C3 to C4 paraffins with O2 and NH3 to make ,ଲ-unsaturated nitriles and olefins, using certain complex metal oxide catalysts containing V, Sb, W and certain optional elem... | 10/03/1989 |
| 4868061 | Olefinic aryl oxime derivatives of hydantoins This invention relates to new compounds of the formula: ##STR1## where each of R1, R2, R3, R4 and R5 has zero to 10 C atoms, and no acetylenic unsaturation; each of R1, R2 and ... | 09/19/1989 |
| 4866195 | Method for ammoxidation of paraffins and catalyst system therefor Ammoxidation of C3 to C5 acyclic alkanes with NH3 and O2 using (1) a mole ratio of alkane:NH3 in the range from 2 to 16 and a mole ratio of alkane:O2 in the range 1 to 10 and (2) a mixture ... | 09/12/1989 |
| 4866194 | Method for ammoxidation of paraffins and catalyst system therefor Disclosed is ammoxidation of C3 to C5 acyclic alkanes with NH3 and O2 using (1) a mole ratio of alkane:NH3 in the range from 2 to 16 and a mole ratio of alkane:O2 in the range 1 to 10 and (... | 09/12/1989 |
| 4866024 | Catalysts for ammoxidation of paraffins Disclosed is the reaction of propane and isobutane with O2 and NH3 to make ,ଲ-unsaturated nitriles and olefins, using certain complex metal oxide catalyst compositions and an excess of the paraffin over both the O2 | 09/12/1989 |
| 4861911 | Process for oxidation of benzene to phenol precursor Benzene is oxidized to produce the phenyl ester of a perfluoromonocarboxylic acid by reaction with H2 O2, a perfluoro acid or a combination of acetaldehyde and molecular oxygen, in the presence of (1) a cobalt salt of an organic acid... | 08/29/1989 |
| 4857621 | Cationic polymeric stabilizers for oil-in-water emulsions A mixture having emulsifying and emulsion stabilizing properties resulting from the polymerization of (1) a water soluble vinyl monomer selected from the group consisting of acrylamide and methacrylamide, (2) a water insoluble vinyl monomer having an alky... | 08/15/1989 |
| 4851546 | Preparation of pyrrolidones by catalytic hydrogenation of maleimides Disclosed is a process for making a 2-pyrrolidone and a succinimide by the vapor phase catalytic reaction of a maleimide with molecular hydrogen.... | 07/25/1989 |
| 4848475 | Sea bed process complex A sea bed oil producing and processing complex has a template with three bays housing pairs of modules, viz, well, gas and oil production modules. The complex includes a separator for separating oil and gas and a pump for the produced oil, and bars having... | 07/18/1989 |
| 4847411 | 1,6-hexanediamides from 3-pentenamides A process for making a diamide of the formula ##STR1## by reacting a monoamide compound of the formula ##STR2## with CO and an amine or ammonia of the formula R7 R8 NH in the liquid phase under essentially anhydrous conditi... | 07/11/1989 |
| 4843055 | Catalyst system for ammoxidation of paraffins Disclosed is ammoxidation of C3 to C5 acyclic alkanes with NH3 and O2 using (1) a mole ratio of alkane:NH3 in the range from 2 to 16 and a mole ratio of alkane:O2 in the range 1 to 10 and (... | 06/27/1989 |
| 4837191 | Catalytic mixture for the ammoxidation of paraffins Disclosed is ammoxidation of C3 to C5 acyclic alkanes with NH3 and O2 using (1) a mole ratio of alkane:NH3 in the range from 2 to 16 and a mole ratio of alkane:O2 in the range 1 to 10 and (... | 06/06/1989 |
| 4837233 | Catalyst system for ammoxidation of paraffins Ammoxidation of C3 to C5 acyclic alkanes with NH3 and O2 using (1) a mole ratio of alkane:NH3 in the range from 2 to 16 and a mole ratio of alkano:O2 in the range 1 to 10 and (2) a mixture ... | 06/06/1989 |
| 4835125 | Catalyst system for ammoxidation of paraffins Disclosed is ammoxidation of C3 to C5 acyclic alkanes with NH3 and O2 using (1) a mole ratio of alkane:NH3 in the range from 2 to 16 and a mole ratio of alkane:O2 in the range 1 to 10 and (... | 05/30/1989 |
| 4826922 | Vinylidene chloride copolymer compositions Disclosed are compositions which are blends of vinylidene chloride-vinyl chloride copolymers with certain indene or 3-methylindene containing polymers.... | 05/02/1989 |
| 4827001 | Preparation of γ-butyrolactone and 1,4-butanediol by catalytic hydrogenation of maleic acid Disclosed is the hydrogenation of maleic acid in the presence of a solid iron-containing ruthenium catalyst containing the elements and the ratios indicated by the empirical formula, where M is one or more of Pd and Rh, a is 0.1-5, b is zero-3, and x is a numb... | 05/02/1989 |
| 4818732 | High surface area ceramics prepared from organosilane gels High surface area open microporous, partially crystalline, partially amorphous, solid ceramic materials containing silicon carbide with or without silica with or without carbon may be prepared by controlled pyrolysis of (RSiO1.5)n ge... | 04/04/1989 |
| 4816243 | Preparation of vanadium III oxidic compounds, and dehydrogenation of paraffins Disclosed is making a particular inorganic crystalline vanadium III oxidic compound from a pentavalent vanadium compound and at least one other or more metal cations, which process comprises (1) reducing a pentavalent vanadium oxidic compound to the V | 03/28/1989 |
| 4814478 | Method for ammoxidation of paraffins and catalyst system therefor Disclosed is ammoxidation of C3 to C5 acyclic alkanes with NH3 and O2 using (1) a mole ratio of alkane:NH3 in the range from 2 to 16 and a mole ratio of alkane:O2 in the range 1 to 10 and (... | 03/21/1989 |
| 4810807 | Hydrogenation of maleic anhydride to tetrahydrofuran A continuous process for the preparation of tetrahydrofuran comprises, in a single-stage process, catalytically hydrogenating the solution which results when at least one of maleic anhydride or succinic anhydride is dissolved in a monohydric aliphatic alc... | 03/07/1989 |
| 4801568 | Catalyst for ammoxidation of paraffins Ammoxidation of C3 to C5 acyclic alkanes with NH3 and O2 using (1) a mole ratio of alkane:NH3 in the range from 2 to 16 and a mole ratio of alkane:O2 in the range 1 to 10 and (2) a mixture ... | 01/31/1989 |
| 4801727 | Method for ammoxidation of paraffins and catalyst system therefor Ammoxidation of C3 to C5 acyclic alkanes with NH3 and O2 using (1) a mole ratio of alkane:NH3 in the range from 2 to 16 and a mole ratio of alkane:O2 in the range 1 to 10 and (2) a mixture ... | 01/31/1989 |
| 4797381 | Preparation of abrasion resistant alumina-supported vanadium-antimony oxidic catalysts Disclosed is a method of making an active and abrasion resistant catalyst composition comprising at least 5 weight percent alumina support and at most 95 percent of a complex oxide composition having the empirical formula: where A is one or more of W, Sn,... | 01/10/1989 |
| 4788317 | Ammoxidation of paraffins and catalysts therefor Disclosed is a process for ammoxidation of paraffins containing 3-5 C atoms using a complex metal oxide catalyst which is essentially free of bismuth, and has the elements and the proportions which are represented by the following empirical formula: where... | 11/29/1988 |
| 4788173 | Catalytic mixtures for ammoxidation of paraffins Ammoxidation of C3 to C5 acyclic alkanes with NH3 and O2 using (1) a mole ratio of alkane:NH3 in the range from 2 to 16 and a mole ratio of alkane:O2 in the range 1 to 10 and (2) a mixture ... | 11/29/1988 |
| 4786756 | Catalytic conversion of lactic acid and ammonium lactate to acrylic acid Disclosed is a process for the catalytic conversion of lactic acid and/or ammonium lactate to acrylic acid by contacting a mixture of water and lactic acid and/or ammonium lactate in the vapor phase with aluminum phosphate which has been treated with an a... | 11/22/1988 |
| 4784979 | Catalyst and catalyst precursor containing vanadium and antimony Disclosed is a method of making a catalyst precursor by reacting the ion VO(O2)+ in aqueous solution with an antimony compound that contains Sb having a valence of 3. In one embodiment, the VO(O2)+ ion is made b... | 11/15/1988 |
| 4783545 | Method for ammoxidation of paraffins and catalyst system therefor Ammoxidation of C3 to C5 acyclic alkanes with NH3 and O2 using (1) a mole ratio of alkane:NH3 in the range from 2 to 16 and a mole ratio of alkane:O2 in the range 1 to 10 and (2) a mixture ... | 11/08/1988 |
| 4783550 | Process for oxidation of benzene to phenol precursor Benzene is oxidized to produce the phenyl ester of a perfluoromonocarboxylic acid by reaction with H2 O2, a perfluoro acid or a combination of acetaldehyde and molecular oxygen, in the presence of (1) a cobalt salt of an organic acid... | 11/08/1988 |
| 4782173 | Synthesis of methionine hydroxy analog or derivative, and esters thereof; synthesis of 1-acyloxy-4-hydrocarbylthiopropene, and products Discloses (1) reacting a 3-(hydrocarbylthio) propionaldehyde with a compound ##STR1## (2) reacting latter compound with CO and R"YH where y is O or S to make (3) hydrolyzing this compound; (4) certain new 1-acyloxy-3-methylthiopropenes and (5) t... | 11/01/1988 |
| 4769355 | Catalyst system for ammoxidation of paraffins Ammoxidation of C3 to C5 acyclic alkanes with NH3 and O2 using (1) a mole ratio of alkane:NH3 in the range from 2 to 16 and a mole ratio of alkane:O2 in the range 1 to 10 and (2) a mixture ... | 09/06/1988 |
| 4767739 | Catalyst system for ammoxidation of paraffins Disclosed is ammoxidation of C3 to C5 acyclic alkanes with NH3 and O2 using (1) a mole ratio of alkane:NH3 in the range from 2 to 16 and a mole ratio of alkane:O2 in the range 1 to 10 and (... | 08/30/1988 |
| 4767822 | Method of forming a nonaqueous stable emulsion of rubber in polymerizable monomer, and the polymerization process and thermoplastic copolymers produced thereby A process for the production of a nonaqueous stable emulsion feedstock comprising a rubber, a block copolymer having at least one component miscible with the rubber and at least one component miscible with the monomer, and at least two unsaturated organic... | 08/30/1988 |
| 4766232 | Production of unsaturated nitriles using catalysts containing boron, gallium or indium Certain catalysts containing iron and molybdenum plus bismuth or tellurium and nickel, cobalt, manganese, magnesium, zinc, cadmium, calcium or beryllium have been found to give especially large volumes of acrylonitrile or methacrylonitrile in a given time... | 08/23/1988 |
| 4762961 | Preparation of vanadium III oxidic compounds and dehydrogenation of paraffins The vapor phase dehydrogenation of hydrocarbons is achieved with a spinel of the formula AV2-x Cx O4 where A is a bivalent metal, V is vanadium substantially in +3 oxidation state, C is a trivalent metal, or with a crystal... | 08/09/1988 |
| 4761455 | Poly(vinyl chloride) compositions and polymeric blending agents useful therefor Disclosed are normally solid polymers that are the result of addition copolymerization of the monomers acrylonitrile, methyl methacrylate, -methylstyrene and/or styrene, and indene in the presence of a preferred unsaturated rubbery polymer, said po... | 08/02/1988 |
| 4760159 | Method for ammoxidation of paraffins and catalyst therefor Disclosed is a process for the vapor phase ammoxidation of a C3 to C5 paraffin to an ,ଲ-unsaturated nitrile having 3-5 C atoms, using a particulate bismuth-vanadium oxide catalyst containing at least one other specified ... | 07/26/1988 |
| 4757044 | Lanthanide metal salts of heteropolyanions as catalysts for alcohol conversion A new catalyst system for the conversion of short-chain aliphatic alcohols to hydrocarbon having the formula wherein M is selected from at least one element from Group IIIA including lanthanides and actinides, or mixtures thereof, X is at least one element sel... | 07/12/1988 |
| 4753861 | Organic optical information storage medium employing crystalline transitions Erasable optical memories for storing information are prepared from organic materials having two stable crystalline forms. Each crystalline form has at least one different optical characteristic and the materials are reversibly thermally convertible betwe... | 06/28/1988 |
| 4753997 | Process for grafting maleic anhydride or styrene-maleic anhydride onto polyolefins A method of grafting maleic anhydride or maleic anhydride/styrene onto a polyolefin, in particular polypropylene comprising mixing maleic anhydride or maleic anhydride-styrene/styrene homologue with the polyolefin in the presence of a catalyst having the ... | 06/28/1988 |
