Patents by Inventor Patrick E. McMahon

Patrick E. McMahon 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: 5332838
    Abstract: The present invention is a cyclization process utilizing the catalyst copper aluminum borate which process comprises the step of contacting (1) a compound having a fragment in which a carbon-containing chain of at least three atoms in sequence is bonded at one end thereof to a nitrogen, oxygen, or sulfur atom, and at the opposite end to a carbon, nitrogen, oxygen, or sulfur atom, where the latter are bonded to at least one hydrogen atom; with (2) a catalyst comprising at least one member selected from the group consisting of copper aluminum borate and zero valent copper on a support comprising aluminum borate, under conditions sufficient to effect ring closure between the ends of the fragment to obtain a compound comprising a heterocyclic ring.
    Type: Grant
    Filed: March 29, 1988
    Date of Patent: July 26, 1994
    Assignee: Amoco Corporation
    Inventors: Patrick E. McMahon, Larry C. Satek
  • 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: 5227530
    Abstract: Conversion of alcohol to organic compounds which comprises contacting the alcohol with a heterogeneous catalyst composition comprising crystallineCu.sub.2-X Cr.sub.y Al.sub.6-y B.sub.4 O.sub.17 M.sub.m M'.sub.nwhere M is a divalent metal, M' is a monovalent metal, m is a number in a range from 0 to 0.8, n is a number in a range from 0 to 1.6, X is a number in a range from 0 to 10 0.8 and is equal to the sum of m and n/2, and y is a number in a range from 0.01 to 3, having a characteristic X-ray diffraction pattern.
    Type: Grant
    Filed: March 24, 1992
    Date of Patent: July 13, 1993
    Assignee: Amoco Corporation
    Inventors: Larry C. Satek, Patrick E. McMahon
  • Patent number: 5157182
    Abstract: A dehydrocyclization process is described for producing polynuclear organic compounds by contacting a starting organic material having at least one ring moiety comprising at least two adjacent ring carbon atoms each bonded to an independently selected monovalent radical comprising at most about eight carbon atoms provided at least one of the monovalent hydrocarbon radicals comprises more than one carbon atom with a crystalline copper aluminum borate catalyst. The preferred catalyst comprises at least one member selected from the group consisting of (a) crystalline copper aluminum borate and (b) zero valent copper on a support comprising at least one member selected from the group consisting of Al.sub.4 B.sub.2 O.sub.9 and the crystalline copper aluminum borate, the zero valent copper on the support being formed by the reduction of the crystalline copper aluminum borate.
    Type: Grant
    Filed: June 19, 1991
    Date of Patent: October 20, 1992
    Assignee: Amoco Corporation
    Inventors: Patrick E. McMahon, Larry C. Satek
  • Patent number: 5108973
    Abstract: The preparation, structure, and properties of solid inorganic materials containing at least copper, chromium, aluminum, boron and oxygen which new materials have a characteristic X-ray diffraction pattern are described. Also described is the use of such materials in catalytic compositions for the conversion of organic compounds. In particular, new compositions comprising material having a structureCu.sub.2-x Cr.sub.y Al.sub.6-y B.sub.4 O.sub.17 M.sub.m M'.sub.nwhere M is a divalent metal, M' is a monovalent metal, m is a number in a range from 0 to 0.8, n is a number in a range from 0 to 1.6, X is a number in a range from 0 to 0.8 and is equal to the sum of m and n/2, and y is a number in a range from 0.01 to 3, having a characteristic X-ray diffraction pattern are described as well as the use of such materials in various catalyzed processes including dehydrogenation of hydrocarbons and oxygen-containing hydrocarbons.
    Type: Grant
    Filed: May 28, 1991
    Date of Patent: April 28, 1992
    Assignee: Amoco Corporation
    Inventors: Larry C. Satek, Patrick E. McMahon
  • Patent number: 4891462
    Abstract: A copper aluminum borate catalyzed cyclization-dehydrogenation process useful for converting 1-ethylnaphthalene to mixtures of vinylnaphthalens, acenaphthene and acenaphthylene.
    Type: Grant
    Filed: April 25, 1988
    Date of Patent: January 2, 1990
    Assignee: Amoco Corporation
    Inventor: Patrick E. McMahon
  • Patent number: 4883915
    Abstract: A process for the catalyzed conversion fo oximes such as cyclohexanone oxime to amides such as caprolactam via a high conversion, high selectivity, long catalyst lifetime reaction over a HAMS-1B crystalline borosilicate-based catalyst composition.
    Type: Grant
    Filed: April 8, 1987
    Date of Patent: November 28, 1989
    Assignee: Amoco Corporation
    Inventor: Patrick E. McMahon
  • Patent number: 4783570
    Abstract: A gas-phase isomerizaiton process wherein a feed containing one or more members of the 2,7-DMN isomer triad is selectively isomerized over a lower-acidity, supported, molecular-sieve-based catalyst composition to form essentially equilibrium amounts of the members of the 2,7-triad and reduced amounts of outside-the-triad products.
    Type: Grant
    Filed: May 26, 1987
    Date of Patent: November 8, 1988
    Assignee: Amoco Corporation
    Inventors: Gregory P. Hussmann, Patrick E. McMahon
  • Patent number: 4740647
    Abstract: Cyclization of aliphatic moieties of 3-20 carbons which comprises contacting a suitable starting compound comprising the aliphatic moiety with a catalyst comprising at least one member selected from the group consisting of copper aluminum borate and zero valent copper on a support comprising aluminum borate under appropriate reaction conditions to obtain a compound having at least one more cyclic moiety than the starting compound. Preferably, the aromatic which undergoes cyclization is an alkenyl group attached to an aromatic nucleus. The present invention can be used to dehydrocyclize alkenylbenzenes to alkylnaphthalenes. In particular, 5-(o-tolyl)pentene can be dehydrocyclized to mixtures of 1,5-, 1,6-, and 2,6-dimethylnaphthalene.
    Type: Grant
    Filed: October 31, 1986
    Date of Patent: April 26, 1988
    Assignee: Amoco Corporation
    Inventors: Gregory P. Hussmann, Patrick E. McMahon
  • Patent number: 4697010
    Abstract: A process for the catalyzed conversion of oximes such as cyclohexanone oxime to amides such as caprolactam via a high conversion, high selectivity, long catalyst lifetime reaction over a HAMS-1B crystalline borosilicate-based catalyst composition.
    Type: Grant
    Filed: June 5, 1986
    Date of Patent: September 29, 1987
    Assignee: Amoco Corporation
    Inventor: Patrick E. McMahon