Patents by Inventor Ivan M.L. Sham

Ivan M.L. Sham 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).

  • Foam formulation and method of preparing solid porous materials with same
    Patent number: 10442734
    Abstract: A foam formulation for preparing polymer-grafted nanoparticles stabilized foam, including nanoparticles, monomers of a polymer to be grafted on the nanoparticle surface, polymerization initiator, surfactant and water. The polymer-grafted nanoparticles may act together with the surfactant to form single-layer assembling at the boundary of bubbles, which in turn stabilizes the foam. The generated foam shows much better stability in long-term storage, high-temperature drying process and alkaline environments than conventional wet foams. A method of preparing solid porous materials with the foam is also provided.
    Type: Grant
    Filed: May 5, 2016
    Date of Patent: October 15, 2019
    Assignee: Nano and Advanced Materials Institute Limited
    Inventors: Guoxing Sun, Tomi Pekka Bernhard Nissinen, Ivan M. L. Sham
  • FOAM FORMULATION AND METHOD OF PREPARING SOLID POROUS MATERIALS WITH SAME
    Publication number: 20170321026
    Abstract: A foam formulation for preparing polymer-grafted nanoparticles stabilized foam, including nanoparticles, monomers of a polymer to be grafted on the nanoparticle surface, polymerization initiator, surfactant and water. The polymer-grafted nanoparticles may act together with the surfactant to form single-layer assembling at the boundary of bubbles, which in turn stabilizes the foam. The generated foam shows much better stability in long-term storage, high-temperature drying process and alkaline environments than conventional wet foams. A method of preparing solid porous materials with the foam is also provided.
    Type: Application
    Filed: May 5, 2016
    Publication date: November 9, 2017
    Inventors: Guoxing Sun, Tomi Pekka Bernhard Nissinen, Ivan M.L. Sham