Patents by Inventor Chaiya Chandavasu

Chaiya Chandavasu 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).

  • Preparation of microporous films from immiscible blends via melt processing and stretching
    Patent number: 6824680
    Abstract: The invention is directed broadly to microporous films prepared from immiscible blends of at least two components, preferably polymers, which are produced via melt processing, a film formed therefrom, for example by extrusion and post-film-forming treatments comprising uniaxial or biaxial cold-stretching and hot-stretching. The films have a three-dimensional reticulated or interconnected network of microcracks or crazing throughout the film, extending from one surface of the film to the other, providing a stable porosity and pore size useful for a variety of filtration and other applications.
    Type: Grant
    Filed: May 7, 2001
    Date of Patent: November 30, 2004
    Assignee: New Jersey Institute of Technology
    Inventors: Chaiya Chandavasu, Marino Xanthos, Kamalesh K. Sirkar, Costas Gogos
  • Preparation of microporous films from immiscible blends via melt processing and stretching
    Publication number: 20020180082
    Abstract: The invention is directed broadly to microporous films prepared from immiscible blends of at least two components, preferably polymers, which are produced via melt processing, a film formed therefrom, for example by extrusion and post-film-forming treatments comprising uniaxial or biaxial cold-stretching and hot-stretching. The films have a three-dimensional reticulated or interconnected network of microcracks or crazing throughout the film, extending from one surface of the film to the other, providing a stable porosity and pore size useful for a variety of filtration and other applications.
    Type: Application
    Filed: May 7, 2001
    Publication date: December 5, 2002
    Inventors: Chaiya Chandavasu, Marino Xanthos, Kamalesh K. Sirkar, Costas Gogos