Patents by Inventor Gary P. Hagen

Gary P. Hagen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5235115
    Abstract: A method for the selective ethylation of 2-alkoxy-naphthalene compounds at the 6 position of the naphthalene nucleus is disclosed.
    Type: Grant
    Filed: August 15, 1991
    Date of Patent: August 10, 1993
    Assignee: Amoco Corporation
    Inventors: Gary P. Hagen, Wen-Dong Chang, Andreas B. Ernst, David A. Palmer, Daniel B. Pourreau, Patrick E. McMahon, John G. Schaffhausen
  • Patent number: 5235102
    Abstract: There is provided a process for the conversion of a feedstream comprising gaseous and/or liquid feed materials to a desired products by means of catalytic distillation employing a catalyst-packing material comprising a rigid, cellular monolith or a rigid, cellular monolith coated with a catalytically-active material.Preferred rigid, cellular monoliths are ceramic honeycomb monoliths.
    Type: Grant
    Filed: November 20, 1990
    Date of Patent: August 10, 1993
    Assignee: Amoco Corporation
    Inventors: David A. Palmer, Gary P. Hagen
  • Patent number: 5210355
    Abstract: A method for the highly selective production of 2,6-methylethylnaphthalene involving the use of a specific acid catalyst and a highly regeospecific ethylating agent.
    Type: Grant
    Filed: June 26, 1990
    Date of Patent: May 11, 1993
    Assignee: Amoco Corporation
    Inventors: Gary P. Hagen, Thomas G. Smith
  • Patent number: 5177286
    Abstract: A method for the highly selective production of a p-alkyltoluene or 4,4'-alkylmethylbiphenyl involving the use of a specific Lewis acid catalyst and a highly regeospecific methylating agent.
    Type: Grant
    Filed: June 26, 1990
    Date of Patent: January 5, 1993
    Assignee: Amoco Corporation
    Inventors: Gary P. Hagen, Deborah T. Hung
  • Patent number: 5171917
    Abstract: A method for the highly selective production of a p-alkylethylbenzene or 4,4'-alkylethylbiphenyl involving the use of a Lewis acid or Bronsted acid alkylation catalyst and a highly regiospecific ethylating agent.
    Type: Grant
    Filed: June 26, 1990
    Date of Patent: December 15, 1992
    Assignee: Amoco Corporation
    Inventors: Gary P. Hagen, Deborah T. Hung
  • Patent number: 5159125
    Abstract: A catalyzed, continuous vapor phase process to convert a C.sub.2 or higher olefin in combination with methanol to a mixture containing at least one higher molecular weight alcohol, for example, isobutanol, over a magnesium oxide composition. The process also may contain a lower aldehyde and/or ketone in the feed.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: October 27, 1992
    Assignee: Amoco Corporation
    Inventor: Gary P. Hagen
  • Patent number: 5138098
    Abstract: A regioselective acylation process is provided for coverting a 2-methylnaphthalene compound to a 2-acetyl-6-methylnaphthalene compound. The process is conducted under liquid phase conditions in an acylation inert solvent using a complexing agent which is regiospecific for the beta position of naphthalene and which is a thermally stable nitrohydrocarbon compound. Preferred such agents are nitrobenzene, o-nitrotoluene, and mesitylene. Also provided is a novel method for producing a 2-acetyl-6-methylnaphthalene compound of relatively high purity from isomer mixtures by recrystallization from a hydrocarbon solvent, such as n-octane, isooctane, or n-nonane.
    Type: Grant
    Filed: March 14, 1991
    Date of Patent: August 11, 1992
    Assignee: Amoco Corporation
    Inventors: Gary P. Hagen, Gregory E. Schmidt, John M. Weis, Thomas G. Smith
  • Patent number: 5095156
    Abstract: A catalyzed, continuous vapor phase process to convert a C.sub.2 or higher alcohol and, optionally, one or more C.sub.1 or higher alcohols, for example methanol and ethanol, to a mixture containing at least one higher molecular weight alcohol, for example, isobutanol, over a catalyst which is essentially magnesium oxide. The process also may have a lower aldehyde and/or ketone in the feed.
    Type: Grant
    Filed: May 20, 1991
    Date of Patent: March 10, 1992
    Assignee: Amoco Corporation
    Inventors: Cecelia A. Radlowski, Gary P. Hagen
  • Patent number: 5026917
    Abstract: A regioselective acetylation process is provided for converting a 2-methylnaphthalene compound to a 2-acetyl-6-methylnaphthalene compound. The process is conducted under liquid phase conditions using a new complexing agent which is regiospecific for the beta position of naphthalene and which is an electron-rich, carbon-based compound. A preferred such agent is hexamethylbenzene. Also provided is a novel method for producing a 2-acetyl-6-methylnaphthalene compound of relative high purity from isomer mixtures by recrystallization from a hydrocarbon solvent, such as n-octane, isooctane, or n-nonane.
    Type: Grant
    Filed: March 1, 1990
    Date of Patent: June 25, 1991
    Assignee: Amoco Corporation
    Inventors: Gary P. Hagen, Gregory E. Schmidt, John M. Weis, Thomas G. Smith
  • Patent number: 4990662
    Abstract: Catalyst and process are disclosed for the improved preparation of alpha, beta-unsaturated acids. The catalyst comprises a porous silica gel component and a Group IA alkali metal component, which is present in an amount of from 200 to 20,000 parts per million and optionally another component such as tin (IV) oxide, and mixtures thereof. The process comprises reacting formaldehyde and an aliphatic carboxylic acid in the presence of said catalyst while maintaining catalyst activity and selectivity during the process by addition of a source of the alkali metal component.
    Type: Grant
    Filed: July 27, 1987
    Date of Patent: February 5, 1991
    Assignee: Amoco Corporation
    Inventors: Gary P. Hagen, Ruth A. Montag
  • Patent number: 4943659
    Abstract: Catalyst and process are disclosed for preparation of alpha, beta-unsaturated acids. Catalyst comprises a silica component and a Group IA alkali metal component which is present in an amount of from 200 to 15,000 parts per million, said silica component containing less than about 500 parts per million individually of aluminum, zirconium, titanium, iron and mixtures thereof. Process comprises reacting formaldehyde and a carboxylic acid of the formula RHC.sub.2 COOH wherein R is a member of the class consisting of --H, -alkyl, -aryl, -aralkyl, -cycloalkyl, and -alkylaryl radicals in the presence of said catalyst. Catalyst activity is maintained during process by addition of source of alkali metal component.
    Type: Grant
    Filed: December 29, 1986
    Date of Patent: July 24, 1990
    Assignee: Amoco Corporation
    Inventor: Gary P. Hagen
  • Patent number: 4873386
    Abstract: A method for the highly selective production of 2,6-diethylnaphthalene involving the use of a specific Lewis acid catalyst and a highly regiospecific ethylating agent.
    Type: Grant
    Filed: June 28, 1988
    Date of Patent: October 10, 1989
    Assignee: Amoco Corporation
    Inventors: Gary P. Hagen, Thomas E. Nemo
  • Patent number: 4855503
    Abstract: Oxybisaniline is prepared in high yield by reacting a hydroxylamine with a polycarboxylic diphenyl ether in the presence of an inorganic acid. The acid groups are directly converted to amine groups. By-products of the reaction are negligible.
    Type: Grant
    Filed: April 23, 1987
    Date of Patent: August 8, 1989
    Assignee: Amoco Corporation
    Inventors: Douglas E. Fjare, Gary P. Hagen
  • Patent number: 4822913
    Abstract: Esters of carboxylic acids of the formula RCH.sub.2 COOR"' and R'CH:C(R")COOR"' are reacted to form a carboxylic acid and an aliphatic alcohol R"'OH wherein R, R', and R" are individually selected from the group consisting of --H, alkyl moieties of from 1 to 18 carbon atoms and aralkyl moieties, cycloalkyl moieties and alkylaryl moieties of 3 to 18 carbon atoms and R"' is an alkyl moiety of 1 to 18 carbon atoms in the presence of an AMS-1B borosilicate crystalline molecular sieve catalyst under reaction conditions.
    Type: Grant
    Filed: October 28, 1983
    Date of Patent: April 18, 1989
    Assignee: Amoco Corporation
    Inventor: Gary P. Hagen
  • Patent number: 4736062
    Abstract: A process is disclosed for producing an alpha-, beta-ethylenically unsaturated monocarboxylic acid compound which comprises the aldol-type condensation of a saturated aliphatic monocarboxylic acid compound under vapor phase conditions in the presence of a hydrocarbon of 6 to 12 carbon atoms and a solid catalyst.
    Type: Grant
    Filed: June 25, 1984
    Date of Patent: April 5, 1988
    Assignee: Amoco Corporation
    Inventors: Gary P. Hagen, Thomas G. Smith
  • Patent number: 4631264
    Abstract: Catalyst and process are disclosed for preparation of alpha, beta-unsaturated acids. Catalyst comprises a silica component and a Group IA alkali metal component which is present in an amount of from 200 to 15,000 parts per million, said silica component containing less than about 500 parts per million individually of aluminum, zirconium, titanium, iron and mixtures thereof. Process comprises reacting formaldehyde and a carboxylic acid of the formula RCH.sub.2 COOH wherein R is a member of the class consisting of -H, -alkyl, -aryl, -aralkyl, -cycloalkyl, and -alkylaryl radicals in the presence of said catalyst. Catalyst activity is maintained during process by addition of source of alkali metal component.
    Type: Grant
    Filed: October 7, 1985
    Date of Patent: December 23, 1986
    Assignee: Standard Oil Company (Indiana)
    Inventor: Gary P. Hagen
  • Patent number: 4447641
    Abstract: Alpha, beta-unsaturated esters are prepared by reaction between dimethylformal and carboxylic acid compounds of the formula RCH.sub.2 COOR' wherein R is a member of the class consisting of --H, -alkyl, -aryl, -aralky, -cycloalkyl, and -alkylaryl radicals, and R' is selected from the group consisting of --H and --CH.sub.3 radicals in the presence of AMS-1B borosilicate crystalline molecular sieve catalyst under reaction conditions.
    Type: Grant
    Filed: July 26, 1982
    Date of Patent: May 8, 1984
    Assignee: Standard Oil Company (Indiana)
    Inventor: Gary P. Hagen
  • Patent number: 4433174
    Abstract: Alpha, beta-unsaturated aldehydes are prepared by reacting formaldehyde and a reactant aldehyde of formula RCH.sub.2 CHO wherein R is a member of the class consisting of -H, -alkyl, -aryl, -aralkyl, -cycloalkyl, and -alkylaryl radicals in the presence of AMS-1B borosilicate crystalline molecular sieve catalyst. Metacrolein is prepared from propionaldehyde and formaldehyde.
    Type: Grant
    Filed: July 26, 1982
    Date of Patent: February 21, 1984
    Assignee: Standard Oil Company (Indiana)
    Inventor: Gary P. Hagen