Patents by Inventor Rachel Yerushalmi-Rozen

Rachel Yerushalmi-Rozen 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 for the preparation of dispersions of carbon nanotubes
    Patent number: 7812083
    Abstract: The invention provides a method for the preparation of a suspension of de-agglomerated carbon nanotubes, comprising mixing agglomerated carbon nanotubes with a block copolymer. Further, a powder of de-agglomerated carbon nanotubes is provided, that can be easily redispersed to obtain a suspension of untangled carbon nanotubes. The invention also relates to the use of the provided materials in the preparation of composites, and in electronics.
    Type: Grant
    Filed: December 13, 2004
    Date of Patent: October 12, 2010
    Assignee: Ben Gurion University of the Negev Research and Development Authority
    Inventor: Rachel Yerushalmi-Rozen
  • Method for the preparation of stable suspensions and powders of single carbon nanotubes
    Patent number: 7501108
    Abstract: A method is provided for exfoliation of carbon nanotubes and for the preparation of a stable aqueous suspension thereof containing dispersed, essentially single tubes, using a water-soluble polymeric material. A powder of carbon nanotubes is further provided, that can be re-dispersed to form a stable suspension. The nanotubes can be used in electronics, printing, coatings, thin layers, molecular machines, and for the production of composite materials.
    Type: Grant
    Filed: September 18, 2003
    Date of Patent: March 10, 2009
    Assignee: Ben-Gurion University of the Negev Research & Development Authority
    Inventors: Rachel Yerushalmi-Rozen, Oren Regev
  • Method For the Preparation of Dispersions of Carbon Nanotubes
    Publication number: 20080255294
    Abstract: The invention provides a method for the preparation of a suspension of de-agglomerated carbon nanotubes, comprising mixing agglomerated carbon nanotubes with a block copolymer. Further, a powder of de-agglomerated carbon nanotubes is provided, that can be easily redispersed to obtain a suspension of untangled carbon nanotubes. The invention also relates to the use of the provided materials in the preparation of composites, and in electronics.
    Type: Application
    Filed: December 13, 2004
    Publication date: October 16, 2008
    Applicant: BEN-GURION UNIVERSITY OF THE NEGEV RESEARCH AND DEVELOPMENT AUTHORITY
    Inventor: Rachel Yerushalmi-Rozen
  • Method for the preparation of stable suspensions and powders of single carbon nanotubes
    Publication number: 20040131859
    Abstract: A method is provided for exfoliation of carbon nanotubes and for the preparation of a stable aqueous suspension thereof containing dispersed, essentially single tubes, using a water-soluble polymeric material. A powder of carbon nanotubes is further provided, that can be re-dispersed to form a stable suspension. The nanotubes can be used in electronics, printing, coatings, thin layers, molecular machines, and for the production of composite materials.
    Type: Application
    Filed: September 18, 2003
    Publication date: July 8, 2004
    Inventors: Rachel Yerushalmi-Rozen, Oren Regev