Patents by Inventor Robert C. Bening, Jr.

Robert C. Bening, 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).

  • Iron-Schiff base magnetic polymers and process thereof
    Patent number: 5274070
    Abstract: The present invention relates to a magnetically active organometallic Schiff base polymer having a molecular weight of between about 4,000 and 50,000 daltons. In an additional aspect, the present invention relates to a process for the preparation of magnetically active organometallic polymer having a molecular weight of between about 4,000 and 50,000 daltons, wherein the polymer comprises a multiplicity of Schiff base tridentate chelating groups having the capacity to combine with the iron (II) or iron (III) ion of an organic salt, which process comprises:(a) combining at least one organic diamine including hydrazine with at least one organic diketone or dialdehyde in an anhydrous dipolar aprotic solvent for a time sufficient to produce to polymer at a temperature of between about 50.degree. C. and 200.degree. C.
    Type: Grant
    Filed: May 10, 1991
    Date of Patent: December 28, 1993
    Assignee: Osaka Gas Company, Ltd.
    Inventors: David B. Cotts, Louisa M. Brodrecht, Robert C. Bening, Jr.
  • Iron-Schiff base magnetic polymers and process thereof
    Patent number: 5015699
    Abstract: Broadly, the present invention relates to a magnetically active organometallic Schiff base polymer having a molecular weight of between about 4,000 and 50,000 daltons.In an additional aspect, the present invention relates to a process for the preparation of magnetically active organometallic polymer having a molecular weight of between about 4,000 and 50,000 daltons, wherein the polymer comprises a multiplicity of Schiff base tridentate chelating groups having the capacity to combine with the iron (II) or iron (III) ion of an organic salt, which process comprises:(a) combining at least one organic diamine including hydrazine with at least one organic diketone or dialdehyde in an anhydrous dipolar aprotic solvent for a time sufficient to produce the polymer at a temperature of between about 50.degree. and 200.degree. C.
    Type: Grant
    Filed: July 22, 1988
    Date of Patent: May 14, 1991
    Assignee: Osaka Gas Co., Ltd.
    Inventors: David B. Cotts, Louisa M. Brodrecht, Robert C. Bening, Jr.