Patents Examined by J. Saba
  • Patent number: 5053578
    Abstract: 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: Grant
    Filed: February 8, 1990
    Date of Patent: October 1, 1991
    Assignee: Amoco Corporation
    Inventors: Glenn O. Michaels, Michael J. Spangler
  • Patent number: 5043515
    Abstract: 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: Grant
    Filed: August 8, 1989
    Date of Patent: August 27, 1991
    Assignee: Shell Oil Company
    Inventors: Lynn H. Slaugh, Galeon W. Schoenthal
  • Patent number: 5037816
    Abstract: 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: Grant
    Filed: December 21, 1987
    Date of Patent: August 6, 1991
    Assignee: The General Hospital Corporation
    Inventors: Michael F. Holick, Julia McLaughlin
  • Patent number: 5030784
    Abstract: 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: Grant
    Filed: February 26, 1990
    Date of Patent: July 9, 1991
    Assignee: Shell Oil Company
    Inventor: Lynn H. Slaugh
  • Patent number: 5028631
    Abstract: 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: Grant
    Filed: November 25, 1987
    Date of Patent: July 2, 1991
    Inventors: Arthur G. Schwartz, Marvin L. Lewbart
  • Patent number: 5023390
    Abstract: 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: Grant
    Filed: September 12, 1989
    Date of Patent: June 11, 1991
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Takafumi Abe, Shuji Ebata, Hiroshi Machida, Koichi Kida
  • Patent number: 5012030
    Abstract: 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: Grant
    Filed: October 10, 1989
    Date of Patent: April 30, 1991
    Assignee: Amoco Corporation
    Inventors: Kelley R. Lane, Wayne P. Schammel
  • Patent number: 5008481
    Abstract: 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: Grant
    Filed: December 29, 1989
    Date of Patent: April 16, 1991
    Assignee: Mobil Oil Corporation
    Inventors: Ivy D. Johnson, Pochen Chu, Charles T. Kresge
  • Patent number: 5008480
    Abstract: 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: Grant
    Filed: February 26, 1990
    Date of Patent: April 16, 1991
    Assignee: Shell Oil Company
    Inventor: Lynn H. Slaugh
  • Patent number: 5003121
    Abstract: 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: Grant
    Filed: August 28, 1989
    Date of Patent: March 26, 1991
    Assignee: UOP
    Inventors: Tamotsu Imai, Joseph A. Kocal
  • Patent number: 5001118
    Abstract: 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: Grant
    Filed: December 10, 1987
    Date of Patent: March 19, 1991
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Yuji Maeda, Hideyuki Yamato, Toru Hirai, Masanori Ikuzawa, Mikio Matsuki, Masanori Togawa, Eiji Inoguchi, Sinji Nakajima, Tadaaki Kato, Chikao Yoshikumi
  • Patent number: 5001294
    Abstract: 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: Grant
    Filed: October 31, 1988
    Date of Patent: March 19, 1991
    Inventor: Allan S. Hay
  • Patent number: 4992610
    Abstract: 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: Grant
    Filed: February 28, 1989
    Date of Patent: February 12, 1991
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Hiroshi Sato, Kenshi Uchida, Hideto Tojima
  • Patent number: 4988658
    Abstract: 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: Grant
    Filed: July 17, 1989
    Date of Patent: January 29, 1991
    Assignee: Phillips Petroleum Company
    Inventor: Charles A. Drake
  • Patent number: 4988504
    Abstract: Certain polysiloxane surface active agents containing radial organic polyether groups provide for improved stability of silicone emulsions, particularly antiperspirant stick compositions.
    Type: Grant
    Filed: August 19, 1987
    Date of Patent: January 29, 1991
    Assignee: General Electric Company
    Inventors: Anthony A. Zotto, Raymond J. Thimineur, William J. Raleigh
  • Patent number: 4983605
    Abstract: 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: Grant
    Filed: October 20, 1987
    Date of Patent: January 8, 1991
    Assignees: Ishihara Sangyo Kaisha Ltd., The Green Cross Corporation
    Inventors: Nobuo Kondo, Masahiro Kikuchi, Tsunetaka Nakajima, Masahiro Watanabe, Kazumasa Yokoyama, Takahiro Haga, Nobutoshi Yamada, Hideo Sugi, Toru Koyanagi
  • Patent number: 4982041
    Abstract: 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: Grant
    Filed: January 10, 1990
    Date of Patent: January 1, 1991
    Assignee: Union Carbide Chemicals and Plastics Company Inc.
    Inventor: Kenneth D. Campbell
  • Patent number: 4973791
    Abstract: 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: Grant
    Filed: July 20, 1989
    Date of Patent: November 27, 1990
    Assignee: The Dow Chemical Company
    Inventors: G. Edwin Vrieland, Craig B. Murchison
  • Patent number: 4973782
    Abstract: 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: Grant
    Filed: October 10, 1989
    Date of Patent: November 27, 1990
    Assignee: UOP
    Inventors: Dusan J. Engel, Thomas P. Malloy
  • Patent number: 4970191
    Abstract: 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: Grant
    Filed: April 18, 1989
    Date of Patent: November 13, 1990
    Assignee: Aristech Chemical Corporation
    Inventor: Alain A. Schutz