Patents by Inventor Hariharan Rajaraman

Hariharan Rajaraman 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).

  • Method and colorant for the coloring of rubber
    Publication number: 20040087712
    Abstract: The present invention provides a method for coloring a rubber substrate with a latex-based colorant comprising the steps of providing a latex-based colorant that includes an elastomeric latex-based binder and a pigment system and mixing the latex-based colorant with the rubber substrate. Optionally, the latex-based colorant further comprises a surfactant system, a thickener, a defoamer, and an antioxidant. The present invention further provides a colored rubber and a latex-based colorant for coloring rubber.
    Type: Application
    Filed: July 22, 2003
    Publication date: May 6, 2004
    Inventor: Hariharan Rajaraman
  • Processes and products for foaming thermoplastic materials using a pellet or powder as a vehicle to deliver a physical foaming agent, and products formed therewith
    Publication number: 20040006148
    Abstract: In a process for forming low-density foamed articles, a blend of foamable thermoplastic material and physical foaming agent concentrate is mixed and melted and expanded to form an extruded foam article.
    Type: Application
    Filed: July 7, 2003
    Publication date: January 8, 2004
    Applicant: POLYMER 5
    Inventors: Richard E. Harris, Hariharan Rajaraman, Duane E. Peterson
  • Method and colorant for the coloring of rubber
    Patent number: 6500896
    Abstract: The present invention provides a method for coloring a rubber substrate with a latex-based colorant comprising the steps of providing a latex-based colorant that includes an elastomeric latex-based binder and a pigment system and mixing the latex-based colorant with the rubber substrate. Optionally, the latex-based colorant further comprises a surfactant system, a thickener, a defoamer, and an antioxidant. The present invention further provides a colored rubber and a latex-based colorant for coloring rubber.
    Type: Grant
    Filed: February 14, 2000
    Date of Patent: December 31, 2002
    Assignee: Chromascape, Inc.
    Inventor: Hariharan Rajaraman
  • Method and colorant for the coloring of rubber
    Publication number: 20020193501
    Abstract: The present invention provides a method for coloring a rubber substrate with a latex-based colorant comprising the steps of providing a latex-based colorant that includes an elastomeric latex-based binder and a pigment system and mixing the latex-based colorant with the rubber substrate. Optionally, the latex-based colorant further comprises a surfactant system, a thickener, a defoamer, and an antioxidant. The present invention further provides a colored rubber and a latex-based colorant for coloring rubber.
    Type: Application
    Filed: July 17, 2002
    Publication date: December 19, 2002
    Applicant: Chromascape, Inc.
    Inventor: Hariharan Rajaraman