Patents by Inventor Ralph U. Boes

Ralph U. Boes 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).

  • Mineral binders colored with silicon-containing carbon black
    Patent number: 5622557
    Abstract: Binder compositions are provided which include a mineral binder and a silicon-containing carbon black. The silicon-containing carbon black can have attached an ionic or ionizable organic group or can be oxidized. Silicon-containing carbon blacks may be prepared by a furnace method. The binder compositions of the present invention have improved coloring and weathering properties in comparison to binder compositions prepared with conventional carbon blacks. Furthermore, the binder compositions that incorporate silicon-containing carbon blacks having ionic or ionizable organic groups attached exhibit excellent dispersibility, even in pelletized form. Articles such as roofing tiles can be prepared from the binder compositions. Also contemplated is a method of improving the color stability of a mineral binder composition. Silicon-containing carbon blacks as described above are added to the mineral binder composition.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: April 22, 1997
    Assignee: Cabot Corporation
    Inventors: Khaled Mahmud, Jameel Menashi, James A. Belmont, Ralph U. Boes
  • Carbon black products for coloring mineral binders
    Patent number: 5575845
    Abstract: A mineral binder composition having incorporated therein a carbon black product comprising a carbon black having attached an organic group containing an ionic or an ionizable group.
    Type: Grant
    Filed: December 15, 1994
    Date of Patent: November 19, 1996
    Assignee: Cabot Corporation
    Inventors: James A. Belmont, Ralph U. Boes, Jameel Menashi