Patents by Inventor Donald J. Black

Donald J. Black 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).

  • Peroxide composition containing phenolic antioxidant
    Patent number: 4552682
    Abstract: Phenolic antioxidant compounds are added to aqueous dispersions of organic peroxide to reduce the rate of self induced homolytic decomposition of the peroxide at temperatures of from above -5.degree. C. to +20.degree. C. From about 0.1 to about 2 mole percent, basis the organic peroxide, of phenolic antioxidant is preferentially used. Among the organic peroxides described are the dialkylperoxydicarbonates. Among the phenolic antioxidants described are hindered phenols such as 2,6-di-tertiarybutyl-4-methylphenol.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: November 12, 1985
    Assignee: PPG Industries, Inc.
    Inventors: Donald J. Black, Robert H. Tang
  • Mazed castle game board
    Patent number: D297023
    Type: Grant
    Filed: September 20, 1985
    Date of Patent: August 2, 1988
    Inventor: Donald J. Black