Patents by Inventor Russell Edward Malz, Jr.

Russell Edward Malz, Jr. 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).

  • Preparation of substituted aromatic amines
    Patent number: 5858321
    Abstract: A method for producing aromatic amines such as N-phenyl-p-phenylenediamine is disclosed wherein an amine substituted aromatic such as aniline is oxidized with oxygen or hydrogen peroxide in the presence of trisodium pentacyano ferrate(II) complexes containing various water soluble ligands, such as ammonia, mono alkyl amine, dialkyl amines, and trialkyl amines. The complex is subsequently catalytically reduced by hydrogenation using certain heterogeneous metal catalysts to yield the desired aromatic amine.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: January 12, 1999
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Edward Lockwood Wheeler, Russell Edward Malz, Jr.
  • Preparation of substituted aromatic amines
    Patent number: 5728882
    Abstract: A method for producing aromatic amines such as N-phenyl-p-phenylenediamine is disclosed wherein an amine substituted aromatic such as aniline is oxidized with oxygen or hydrogen peroxide in the presence of trisodium pentacyano ferrate(II) complexes containing various water soluble ligands, such as ammonia, mono alkyl amine, dialkyl amines, and trialkyl amines. The complex is subsequently catalytically reduced by hydrogenation using certain heterogeneous metal catalysts to yield the desired aromatic amine.
    Type: Grant
    Filed: April 4, 1996
    Date of Patent: March 17, 1998
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Edward Lockwood Wheeler, Russell Edward Malz, Jr.