Patents by Inventor John Donohue

John 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).

  • Methyl-substituted polyphenylcarboxylic acids
    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
  • Polyesters of methyl-substituted polyphenylcarboxylic acids
    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
  • Process for electrolytic synthesis of polyalkylbiphenylpolycarboxylic acid compounds
    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