Patents by Inventor Kenneth F. Kubiak

Kenneth F. Kubiak 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).

  • Precipitated silicas, silica gels with and free of deposited carbon from caustic biomass ash solutions and processes
    Patent number: 6638354
    Abstract: Disclosed are amorphous precipitated silicas, silica gels, and amorphous carbons derived from biomass and methods of producing them with and without adhered or deposited amorphous carbons produced by acidifying a caustic silicate solution produced by caustic digestion of biomass ash containing silica with and without activated carbon, the ash being obtained from thermal pyrolysis of the biomass, the acidifying effective to produce a slurry of the precipitated silica and silica gels with and without adhered or deposited amorphous carbon, and separated from the slurry the precipitated silicas and silica gels with and without the adhered or deposited amorphous carbons. The properties of the precipitated silica with adhered or deposited carbon being within the range as utilized in rubber compositions thereby avoiding the blending of silica and carbon components for such use.
    Type: Grant
    Filed: January 30, 2002
    Date of Patent: October 28, 2003
    Assignees: Agritec, Inc., Occidental Chemical Corporation
    Inventors: Douglas K. Stephens, Clyde W. Wellen, Jeffrey B. Smith, Kenneth F. Kubiak
  • Precipitated silicas, silica gels with and free of deposited carbon from caustic biomass ash solutions and processes
    Publication number: 20030097966
    Abstract: Disclosed are amorphous precipitated silicas, silica gels, and amorphous carbons derived from biomass and methods of producing them with and without adhered or deposited amorphous carbons produced by acidifying a caustic silicate solution produced by caustic digestion of biomass ash containing silica with and without activated carbon, the ash being obtained from thermal pyrolysis of the biomass, the acidifying effective to produce a slurry of the precipitated silica and silica gels with and without adhered or deposited amorphous carbon, and separated from the slurry the precipitated silicas and silica gels with and without the adhered or deposited amorphous carbons. The properties of the precipitated silica with adhered or deposited carbon being within the range as utilized in rubber compositions thereby avoiding the blending of silica and carbon components for such use.
    Type: Application
    Filed: January 30, 2002
    Publication date: May 29, 2003
    Applicant: Agritec, Inc.
    Inventors: Douglas K. Stephens, Clyde W. Wellen, Jeffrey B. Smith, Kenneth F. Kubiak
  • Precipitated silicas, silica gels with and free of deposited carbon from caustic biomass ash solutions and processes
    Patent number: 6375735
    Abstract: Disclosed are amorphous precipitated silicas, silica gels, and amorphous carbons derived from biomass and methods of producing them with and without adhered or deposited amorphous carbons produced by acidifying a caustic silicate solution produced by caustic digestion of biomass ash containing silica with and without activated carbon, the ash being obtained from thermal pyrolysis of the biomass, the acidifying effective to produce a slurry of the precipitated silica and silica gels with and without adhered or deposited amorphous carbon, and separated from the slurry the precipitated silicas and silica gels with and without the adhered or deposited amorphous carbons. The properties of the precipitated silica with adhered or deposited carbon being within the range as utilized in rubber compositions thereby avoiding the blending of silica and carbon components for such use.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: April 23, 2002
    Assignees: Agritec, Inc., Occidental Chemical Corporation
    Inventors: Douglas K. Stephens, Clyde W. Wellen, Jeffrey B. Smith, Kenneth F. Kubiak
  • Method for the decoloration of chloro-xylene compositions
    Patent number: 4885417
    Abstract: Off-color liquid ortho-chloro-para-xylene compositions are decolorized by contacting the compositions with particles of diatomaceous silica, magnesium oxide or soda ash.
    Type: Grant
    Filed: September 19, 1988
    Date of Patent: December 5, 1989
    Assignee: Occidental Chemical Corporation
    Inventor: Kenneth F. Kubiak