Patents by Inventor Jim M. Hom

Jim M. Hom 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).

  • Fluorinated aromatic diamine
    Patent number: 4203922
    Abstract: This invention relates to a novel aromatic diamine and more particularly to the use of said diamine for the preparation of thermally stable high-molecular weight polymers including, for example, polyamides, polyamideimides, polyimides, and the like. This diamine is obtained by reacting a stoichometric amount of a disodium salt of 2,2-bis(4-hydroxyphenyl) hexafluoropropane with 4-chloronitrobenzene to obtain an intermediate, 2,2-bis[4-(4-nitrophenoxy)phenyl] hexafluoropropane, which is reduced to the corresponding 2,2-bis[4-(4-aminophenoxy)phenyl] hexafluoropropane.
    Type: Grant
    Filed: October 11, 1977
    Date of Patent: May 20, 1980
    Assignee: TRW Inc.
    Inventors: Robert J. Jones, Michael K. O'Rell, Jim M. Hom
  • Polyimides prepared from perfluoroisopropylidene diamine
    Patent number: 4111906
    Abstract: This invention relates to a novel aromatic diamine and more particularly to the use of said diamine for the preparation of thermally stable high-molecular weight polymers including, for example, polyamides, polyamideimides, polyimides, and the like. This diamine is obtained by reacting a stoichometric amount of a disodium salt of 2,2-bis(4-hydroxyphenyl) hexafluoropropane with 4-chloronitrobenzene to obtain an intermediate, 2,2-bis[4-(4-nitrophenoxy)phenyl] hexafluoropropane, which is reduced to the corresponding 2,2-bis[4-(4-aminophenoxy)phenyl] hexafluoropropane.
    Type: Grant
    Filed: July 19, 1976
    Date of Patent: September 5, 1978
    Assignee: TRW Inc.
    Inventors: Robert J. Jones, Michael K. O'Rell, Jim M. Hom