Patents by Inventor John A. Donohue

John A. Donohue 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: 5324702
    Abstract: Compositions comprising certain metal-containing materials distributed interactively on a deboronated HAMS-1B crystalline borosilicate molecular sieve which are useful for catalytically oxidizing or oxidatively dehydrogenating organic compounds such as alkanes, aromatics, and alkyl-substituted aromatics are described. Alkanes are oxidatively dehydrogenated to olefins, and an aromatic compound such as benzene can be oxidized by nitric and/or nitrous oxide to largely phenol or largely nitrobenzene depending upon the oxidation temperature. When the compound is a methylaromatic, oxidation produces an aromatic aldehyde. Alkyl groups larger than methyl oxidatively dehydrogenate to alkenyl groups.
    Type: Grant
    Filed: December 16, 1992
    Date of Patent: June 28, 1994
    Assignee: Amoco Corporation
    Inventors: Jin S. Yoo, Mark S. Kleefisch, John A. Donohue
  • Patent number: 4962258
    Abstract: Gallium-containing, crystalline silicate molecular sieves in which substantially all of the gallium occupies molecular sieve lattice positions or is intimately associated with the crystal lattice of the silicate sieve when composited into a silica matrix are shown to form catalyst compositions having superior properties for the catalytic, liquid-phase isomerization of a xylene-containing stream containing a minor amount of ethylbenzene to a product mixture rich in paraxylene.
    Type: Grant
    Filed: December 15, 1988
    Date of Patent: October 9, 1990
    Assignee: Amoco Corporation
    Inventors: Jeffrey A. Amelse, John A. Donohue, Nancy A. Kutz, Judith B. Melville, Brian L. Slusar
  • Patent number: 4582925
    Abstract: 2,2',6,6'-Tetramethyl-4,4'-dicarboxylic acid is prepared by the oxidation of bimesityl and derivatives of the dicarboxylic acid are used in the preparation of polyesters of high molecular weight.
    Type: Grant
    Filed: May 15, 1981
    Date of Patent: April 15, 1986
    Assignee: Standard Oil Company (Indiana)
    Inventor: John A. Donohue
  • Patent number: 4547518
    Abstract: N-(1-Substituted-4,5-dihydro-1H-pyrazol-4-yl)benzamides having the general formula: ##STR1## wherein R is loweralkyl, cycloalkyl or phenylloweralkyl and R.sub.1 is selected from hydroxy, cyano, nitro, amino, methylamino, dimethylamino, halo, trifluoromethyl, loweralkyl, loweralkoxy, sulfamoyl or acetamido, and when n is more than 1 up to 3, R.sub.1 can be the same or different, are disclosed as having gastrokinetic and anti-emetic utility in animals and pharmaceutical compositions therefor. A process for preparing the compounds by oxidation of 1,2-disubstituted-N-(4-pyrazolidinyl)benzamides with a metal hypochlorite is disclosed.
    Type: Grant
    Filed: April 6, 1984
    Date of Patent: October 15, 1985
    Assignee: A. H. Robins Company, Incorporated
    Inventors: Lennox B. Turnbull, John A. Donohue, Gunnar E. Jagdmann, Jr.
  • Patent number: 4457814
    Abstract: Terephthalic acid, as the sodium salt, is electrochemically reduced to sodium p-hydroxymethylbenzoate wherein the catholyte comprises a soluble sodium salt and pH of the catholyte is controlled within limits to obtain good circuit efficiency and little or no by-products.
    Type: Grant
    Filed: July 29, 1983
    Date of Patent: July 3, 1984
    Assignee: Standard Oil Company (Indiana)
    Inventor: John A. Donohue
  • Patent number: 4447645
    Abstract: Disclosed is a process for purification of p-hydroxymethylbenzoic acid containing 4-carboxybenzaldehyde, p-toluic acid and terephthalic acid impurities.
    Type: Grant
    Filed: November 30, 1982
    Date of Patent: May 8, 1984
    Assignee: Standard Oil Company (Indiana)
    Inventors: John A. Donohue, James O. Knobloch, Bruce Petty-Weeks, Steven A. Cerefice
  • Patent number: 4431797
    Abstract: An electrochemical process is disclosed for the preparation of high molecular weight copolymers of poly(p-methylenebenzoate) and poly(alkyleneterephthalate) wherein ammonia is used in the electrolysis step. The ammonium salts thus formed are removed by heat decomposition. Copolymers are prepared from the resulting electrolysis product.
    Type: Grant
    Filed: November 30, 1982
    Date of Patent: February 14, 1984
    Assignee: Standard Oil Company (Indiana)
    Inventors: Edward E. Paschke, John A. Donohue
  • Patent number: 4402805
    Abstract: Terephthalic acid is electrochemically reduced to p-hydroxymethylbenzoic acid and 4-carboxybenzaldehyde content is decreased by a process in a two-compartment electrolysis cell in which (a) the cathode is solid and metal with a mercury amalgam surface and with a hydrogen overvoltage which is greater than the potential for the reduction of terephthalic acid to p-hydroxymethylbenzoic acid, (b) the separating diaphragm is a cation exchange membrane, (c) the catholyte comprises a solution of terephthalic acid, ammonia, an ammonium salt and a soluble salt of mercury, (d) the temperature of the catholyte is between 0.degree. C. and 100.degree. C., (e) the current density is within the range of 1 to 200 A/dm.sup.
    Type: Grant
    Filed: March 15, 1982
    Date of Patent: September 6, 1983
    Assignee: Standard Oil Company Indiana
    Inventor: John A. Donohue
  • Patent number: 4381229
    Abstract: Terephthalic acid is electrochemically reduced to p-hydroxymethylbenzoic acid in a process in an electrolysis cell in which (a) the cathode is solid and metal with an amalgam of mercury surface and has a hydrogen overvoltage which is greater than the potential for the reduction of terephthalic acid to p-hydroxymethylbenzoic acid, and, (b) sufficient mercury is added of a mercury compound to maintain the process.
    Type: Grant
    Filed: November 9, 1981
    Date of Patent: April 26, 1983
    Assignee: Standard Oil Company (Indiana)
    Inventor: John A. Donohue
  • Patent number: 4289870
    Abstract: A polyester comprising units of a dicarboxylic acid component and dihydroxy component wherein said dicarboxylic acid component comprises non-vicinal benzene dicarboxylate moieties and said dihydroxy component comprises 2,2',6,6'-tetramethylbiphenyl-4,4'-diol moieties.
    Type: Grant
    Filed: October 3, 1979
    Date of Patent: September 15, 1981
    Assignee: Standard Oil Company (Indiana)
    Inventors: John A. Donohue, Edward E. Paschke
  • Patent number: 4288588
    Abstract: Methyl-substituted polyphenylacyl compounds are prepared by selective oxidation of oligomers of mesitylene. These methyl-substituted polyphenylacyl compounds are useful as intermediates for polyamides and polyesters. The esters are useful as plasticizers for polyvinylchloride.
    Type: Grant
    Filed: July 13, 1978
    Date of Patent: September 8, 1981
    Assignee: Standard Oil Company (Indiana)
    Inventor: John A. Donohue
  • Patent number: 4154922
    Abstract: Methyl-substituted polyphenylacyl compounds are prepared by selective oxidation of oligomers of mesitylene. These methyl-substituted polyphenylacyl compounds are useful as intermediates for polyamides and polyesters. The esters are useful as plasticizers for polyvinylchloride.
    Type: Grant
    Filed: October 15, 1975
    Date of Patent: May 15, 1979
    Assignee: Standard Oil Company (Indiana)
    Inventor: John A. Donohue
  • Patent number: 3992435
    Abstract: Process for coupling alkyl esters of polyalkylbenzoic acid to prepare polyalkylbiphenylpolycarboxylic acid compounds which comprises anodically oxidizing said alkyl esters in a non-nucleophilic media by applying a source of direct current in liquid phase at atmospheric pressure and temperatures from -30.degree. to 80.degree. C. The biphenyl acid compounds are useful in the formation of polyester resins, including alkyds, and fiber-forming polymers.
    Type: Grant
    Filed: April 7, 1975
    Date of Patent: November 16, 1976
    Assignee: Standard Oil Company (Indiana)
    Inventors: John A. Donohue, Ellis K. Fields, Harold Hart