Patents Examined by J. Saba
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Patent number: 5053578Abstract: A method for converting a feedstock alkane containing from 1 to 3 carbon atoms to a higher molecular weight hydrocarbon comprising contacting a feedstock with an oxygen-containing gas in the presence of a catalytic composition is disclosed. The catalytic composition includes a Group IA metal, a Group IIA metal and a third component, the precursor of which is a sol such as an aqueous suspension of a metal such as aluminum, silicon, titanium, zinc, zirconium, cadmium or tin with which the other components of the composition are thoroughly dispersed.Type: GrantFiled: February 8, 1990Date of Patent: October 1, 1991Assignee: Amoco CorporationInventors: Glenn O. Michaels, Michael J. Spangler
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Patent number: 5043515Abstract: This invention relates to an oligomerization catalyst comprising a zirconocene and one or more alkyl aluminoxanes wherein the alkyl is selected from methyl, ethyl and mixtures thereof and the ratio of equivalents of methyl to ethyl in the product ranges from about 4 to about 0.25 and wherein the atom ratio of aluminum to zirconium ranges from about 1 to about 100. It further relates to the method for preparing the catalyst and the use of the catalyst in an oligomerization process. The catalyst is particularly suited for the oligomerization of ethylene.Type: GrantFiled: August 8, 1989Date of Patent: August 27, 1991Assignee: Shell Oil CompanyInventors: Lynn H. Slaugh, Galeon W. Schoenthal
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Patent number: 5037816Abstract: A method of treating psoriasis in a patient which comprises administering to said patient an effective amount of a vitamin D compound which is capable of stimulating the differentiation of cultured tumor cells or normal rodent or human fibroblasts or keratinocytes in vitro.Type: GrantFiled: December 21, 1987Date of Patent: August 6, 1991Assignee: The General Hospital CorporationInventors: Michael F. Holick, Julia McLaughlin
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Patent number: 5030784Abstract: The instant invention relates to a process for converting methyl- and/or ethyl-substituted benzene or naphthalene and butadiene to 4-aryl-1-butene or 4-aryl-1-pentene and propylene by:a) reacting a methyl- and/or ethyl-substituted benzene or naphthalene and 1,3-butadiene in the presence of an alkali metal catalyst,b) reacting the butenylated reaction product of step a) with ethylene in the presence of of a disproportionation catalyst, andc) separating from the reaction product of step b) product 4-aryl-1-butene or 4-aryl-1-pentene and propylene.Type: GrantFiled: February 26, 1990Date of Patent: July 9, 1991Assignee: Shell Oil CompanyInventor: Lynn H. Slaugh
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Patent number: 5028631Abstract: Compounds of the formula: ##STR1## useful as anti-cancer agents, anti-obesity agents, anti-hyperglycemic agents, anti-aging agents, anti-hyperglycemic agents and anti-autoimmune agents.Type: GrantFiled: November 25, 1987Date of Patent: July 2, 1991Inventors: Arthur G. Schwartz, Marvin L. Lewbart
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Patent number: 5023390Abstract: A process for production of 2,6-dimethylnaphthalene is disclosed; comprising the steps: (1) an acylation step where 2,4-dimethylisobutyrophenone is produced from m-xylene, propylene and carbon monoxide: (2) a hydrogenation step where the carbonyl group of the above 2,4-dimethylisobutyrophenone is hydrogenated: and (3) a dehydrogenation and cyclization step where the above hydrogenated product is subjected to dehydrogenation and cyclization to produce the desired 2,6-dimethylnaphthalene. The process enables efficiently producing high quality or high purity 2,6-dimethylnaphthalene.Type: GrantFiled: September 12, 1989Date of Patent: June 11, 1991Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Takafumi Abe, Shuji Ebata, Hiroshi Machida, Koichi Kida
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Patent number: 5012030Abstract: Viscous, liquid polybutenes of at least 50 wt. % vinylidene content are disclosed together with a procedure for preparing the compounds using an aluminum chloride-organic nitro compound catalyst.Type: GrantFiled: October 10, 1989Date of Patent: April 30, 1991Assignee: Amoco CorporationInventors: Kelley R. Lane, Wayne P. Schammel
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Patent number: 5008481Abstract: There is provided a process for the aromatization of non-aromatic hydrocarbons having at least six carbon atoms. The non-aromatic feed is contacted with a catalyst which includes a base metal or noble metal which is incorporated into or onto a pillared layered silicate. A preferred pillared layered silicate is kenyaite containing interspathic silica, and a preferred base metal or noble metal is chromium.Type: GrantFiled: December 29, 1989Date of Patent: April 16, 1991Assignee: Mobil Oil CorporationInventors: Ivy D. Johnson, Pochen Chu, Charles T. Kresge
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Patent number: 5008480Abstract: The instant invention relates to a process for converting toluene and butadiene to styrene and 1-pentene by:(a) reacting touene and 1,3-butadiene in the presence of an alkali metal catalyst,(b) contacting the butenylated reaction product of step (a) with a double bond isomerization catalyst at a temperature sufficient to cause double isomerization,(c) reacting the isomerized product of step (b) with ethylene in the presence of a disproportionation catalyst, and(d) separating from the reaction product of step (c) product styrene and 1-pentene.Type: GrantFiled: February 26, 1990Date of Patent: April 16, 1991Assignee: Shell Oil CompanyInventor: Lynn H. Slaugh
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Patent number: 5003121Abstract: Alkyl aromatic compounds may be prepared by reacting an aromatic compound with an alkylating agent such as an olefin in the presence of an alkylation catalyst. The alkylation catalyst of the present invention comprises a composite which has been prepared by coextruding a clay component and at least one multi-valent metal component in which the metal is selected from the group consisting of Groups IIIA, IIIB and IVB of the Periodic Table, followed by drying the resultant extrudate and calcination thereof. By utilizing a catalyst which has been prepared by this method in an alkylation reaction it is possible to obtain an improved alkylate selectivity.Type: GrantFiled: August 28, 1989Date of Patent: March 26, 1991Assignee: UOPInventors: Tamotsu Imai, Joseph A. Kocal
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Patent number: 5001118Abstract: Disclosed herein is a method for preventing senescence and increasing bone mass namely, bone volume and bone strength which method comprises administering 24,25-dihydroxy cholecalciferol in a pharmaceutically effective amount, and also use of 24,25-dihydroxy cholecalciferol for preparing anti-senescent compositions and compositions for increasing bone mass.Type: GrantFiled: December 10, 1987Date of Patent: March 19, 1991Assignee: Kureha Kagaku Kogyo Kabushiki KaishaInventors: Yuji Maeda, Hideyuki Yamato, Toru Hirai, Masanori Ikuzawa, Mikio Matsuki, Masanori Togawa, Eiji Inoguchi, Sinji Nakajima, Tadaaki Kato, Chikao Yoshikumi
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Patent number: 5001294Abstract: Aromatic alkenes, especially diarylbutadienes are produced in a simple economic process by reaction of an anil with an organic compound having a non-aromatic unsaturated system conjugated with an aromatic system, and a terminal methyl group pendent from the non-aromatic unsaturated system; in particular the organic compound is a propenyl-substituted aromatic compound.Type: GrantFiled: October 31, 1988Date of Patent: March 19, 1991Inventor: Allan S. Hay
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Patent number: 4992610Abstract: A dimer of a lower .alpha.-olefin is prepared by dimerizing a lower .alpha.-olefin in the presence of a catalyst comprising(A) nickel chloride,(B) a trialkylaluminum(C) at least one phosphorus compound selected from the group consisting of compounds of the formulae:PR.sup.1 R.sup.2 R.sup.3 (I)P(NR.sup.1.sub.2).sub.3 (II)andP(OR.sup.1).sub.3 (III)wherein R.sup.1, R.sup.2 and R.sup.3 are the same or different and each an alkyl group, a cycloalkyl group or a phenyl group and(D) 1,1,1,3,3,3-hexafluoroisopropanol,wherein the catalyst has improved activity because of the use of nickel chloride as a nickel component, so that the amounts of expensive trialkylaluminum and hexafluoroisopropanol can be decreased and the cost of the catalyst can be significantly reduced.Type: GrantFiled: February 28, 1989Date of Patent: February 12, 1991Assignee: Sumitomo Chemical Company, LimitedInventors: Hiroshi Sato, Kenshi Uchida, Hideto Tojima
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Patent number: 4988658Abstract: Catalyst supports, catalyst systems, methods for the preparation thereof, in dimerization processes therewith are provided. Catalyst supports are prepared from potassium carbonate, sodium carbonate, an alumina-containing compound, and water. Catalyst systems comprise of at least one elemental alkali metal deposited on the catalyst support. Optionally, the catalyst system further comprises of at least one promoter.Type: GrantFiled: July 17, 1989Date of Patent: January 29, 1991Assignee: Phillips Petroleum CompanyInventor: Charles A. Drake
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Patent number: 4988504Abstract: Certain polysiloxane surface active agents containing radial organic polyether groups provide for improved stability of silicone emulsions, particularly antiperspirant stick compositions.Type: GrantFiled: August 19, 1987Date of Patent: January 29, 1991Assignee: General Electric CompanyInventors: Anthony A. Zotto, Raymond J. Thimineur, William J. Raleigh
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Patent number: 4983605Abstract: A pharmaceutical composition comprising a benzoyl urea compound (A) selected from the group consisting of a benzoyl urea compound (I) having the formula: ##STR1## wherein X is a halogen atom, a nitro group or a trifluoromethyl group, provided that when Y is a nitro group, X is a halogen atom or a nitro group, Y is a hydrogen atom, a halogen atom, a nitro group or a trifluoromethyl group, Z.sub.1 is a halogen atom or a trifluoromethyl group, Z.sub.2 is a hydrogen atom or a halogen atom, and A is a .dbd.CH-- group or a nitrogen atom, and a benzoyl urea compound (II) having the formula: ##STR2## wherein each of X.sub.1 and X.sub.2 is a hydrogen atom, a halogen atom or a nitro group, provided that when Y is a nitro group, X.sub.Type: GrantFiled: October 20, 1987Date of Patent: January 8, 1991Assignees: Ishihara Sangyo Kaisha Ltd., The Green Cross CorporationInventors: Nobuo Kondo, Masahiro Kikuchi, Tsunetaka Nakajima, Masahiro Watanabe, Kazumasa Yokoyama, Takahiro Haga, Nobutoshi Yamada, Hideo Sugi, Toru Koyanagi
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Patent number: 4982041Abstract: 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.Type: GrantFiled: January 10, 1990Date of Patent: January 1, 1991Assignee: Union Carbide Chemicals and Plastics Company Inc.Inventor: Kenneth D. Campbell
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Patent number: 4973791Abstract: A process for the production of unsaturated aliphatic hydrocarbons, such as diolefins, comprising contacting an aliphatic hydrocarbon, such as an alkane or a monoolefin, with a solid heterogeneous catalyst containing labile oxygen under reaction conditions such that a more highly unsaturated aliphatic hydrocarbon is selectively formed in a high space-time yield. The catalyst comprises an oxide of magnesium, an oxide of molybdenum, an alkali metal promoter, and optionally an oxide of vanadium. For example, butane is oxidized in the presence of magnesium molybdate doped with alkali metal oxide to a mixture of products including predominantly butadiene and cis-2-butene and trans-2-butene.Type: GrantFiled: July 20, 1989Date of Patent: November 27, 1990Assignee: The Dow Chemical CompanyInventors: G. Edwin Vrieland, Craig B. Murchison
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Patent number: 4973782Abstract: A diethyltoluene mixture rich in 2,5-diethyltoluene and containing less tha 5% of the 3,5-diethyltoluene can be prepared by methylating 1,4-diethylbenzene with an excess of methanol in the presence of amorphous silica-alumina catalysts. The most desirable catalysts have a silica:alumina ratio from about 2:1 through about 9:1. Methylation is conveniently effected in a temperature range between about 300.degree. C. and about 450.degree. C. and most desirably in a hydrogen atmosphere.Type: GrantFiled: October 10, 1989Date of Patent: November 27, 1990Assignee: UOPInventors: Dusan J. Engel, Thomas P. Malloy
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Patent number: 4970191Abstract: Basic mixed oxides useful for base catalyzed reactions such as the aldol condensation of acetone and also useful as catalyst supports are made by mixing an acid such as nitric acid or acetic acid with a pseudob oehmite to form a gel, adding magnesium oxide or hydroxide, in a ratio of magnesium to aluminum of about 1:1 to about 10:1, agitating and heating for about 1 to 24 hours, and subsequently drying and calcining. The resulting polymorphic magnesium-aluminum oxide composition is highly effective in the aldol condensation of acetone to isophorone, and other base catalyzed reactions such as isomerization of olefins, aldol condensation of aldehydes.Type: GrantFiled: April 18, 1989Date of Patent: November 13, 1990Assignee: Aristech Chemical CorporationInventor: Alain A. Schutz