Patents by Inventor Mohammad Nahid Siddiqu

Mohammad Nahid Siddiqu 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).

  • PVC composites containing functionalized asphaltene
    Patent number: 11773245
    Abstract: A polyvinyl chloride-asphaltene composite and a method of making the polyvinyl chloride-asphaltene composite is disclosed. The composite includes a polyvinyl chloride (PVC) polymer in an amount of 90 to 99.5 wt.%, based on a total weight of the polyvinyl chloride-asphaltene composite, and a filler in an amount of 10 wt.% or less, based on a total weight of the polyvinyl chloride-asphaltene composite. The filler is an asphaltene, the asphaltene is the only filler present, and the asphaltene is uniformly dispersed within a matrix of the PVC polymer. The polyvinyl chloride-asphaltene composite of the present disclosure demonstrates enhanced thermal stability and improved mechanical tensile or thermo-mechanical properties.
    Type: Grant
    Filed: October 17, 2022
    Date of Patent: October 3, 2023
    Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventor: Mohammad Nahid Siddiqu
  • Polyvinyl chloride-asphaltene composite and methods of preparation thereof
    Patent number: 11492479
    Abstract: A polyvinyl chloride-asphaltene composite and a method of making the polyvinyl chloride-asphaltene composite is disclosed. The composite includes a polyvinyl chloride (PVC) polymer in an amount of 90 to 99.5 wt. %, based on a total weight of the polyvinyl chloride-asphaltene composite, and a filler in an amount of 10 wt. % or less, based on a total weight of the polyvinyl chloride-asphaltene composite. The filler is an asphaltene, the asphaltene is the only filler present, and the asphaltene is uniformly dispersed within a matrix of the PVC polymer. The polyvinyl chloride-asphaltene composite of the present disclosure demonstrates enhanced thermal stability and improved mechanical tensile or thermo-mechanical properties.
    Type: Grant
    Filed: May 18, 2022
    Date of Patent: November 8, 2022
    Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventor: Mohammad Nahid Siddiqu