Patents by Inventor Lianxi Zheng

Lianxi Zheng 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).

  • Carbon Nanotube Fiber Spun From Wetted Ribbon
    Publication number: 20150040532
    Abstract: A fiber of carbon nanotubes was prepared by a wet-spinning method involving drawing carbon nanotubes away from a substantially aligned, supported array of carbon nanotubes to form a ribbon, wetting the ribbon with a liquid, and spinning a fiber from the wetted ribbon. The liquid can be a polymer solution and after forming the fiber, the polymer can be cured. The resulting fiber has a higher tensile strength and higher conductivity compared to dry-spun fibers and to wet-spun fibers prepared by other methods.
    Type: Application
    Filed: April 29, 2014
    Publication date: February 12, 2015
    Inventors: Yuntian T. Zhu, Paul Arendt, Xiefel Zhang, Qingwen Li, Lei Fu, Lianxi Zheng
  • Carbon nanotube fiber spun from wetted ribbon
    Patent number: 8709372
    Abstract: A fiber of carbon nanotubes was prepared by a wet-spinning method involving drawing carbon nanotubes away from a substantially aligned, supported array of carbon nanotubes to form a ribbon, wetting the ribbon with a liquid, and spinning a fiber from the wetted ribbon. The liquid can be a polymer solution and after forming the fiber, the polymer can be cured. The resulting fiber has a higher tensile strength and higher conductivity compared to dry-spun fibers and to wet-spun fibers prepared by other methods.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: April 29, 2014
    Assignee: Los Alamos National Security, LLC
    Inventors: Yuntian T. Zhu, Paul Arendt, Xiefei Zhang, Qingwen Li, Lei Fu, Lianxi Zheng
  • Carbon nanotube fiber spun from wetted ribbon
    Publication number: 20090208742
    Abstract: A fiber of carbon nanotubes was prepared by a wet-spinning method involving drawing carbon nanotubes away from a substantially aligned, supported array of carbon nanotubes to form a ribbon, wetting the ribbon with a liquid, and spinning a fiber from the wetted ribbon. The liquid can be a polymer solution and after forming the fiber, the polymer can be cured. The resulting fiber has a higher tensile strength and higher conductivity compared to dry-spun fibers and to wet-spun fibers prepared by other methods.
    Type: Application
    Filed: October 2, 2008
    Publication date: August 20, 2009
    Inventors: Yuntian T. Zhu, Paul Arendt, Xiefei Zhang, Qingwen Li, Lei Fu, Lianxi Zheng
  • Preparation of pile of carbon nanotubes and fiber therefrom
    Publication number: 20070212290
    Abstract: A pile of carbon nanotubes was prepared by placing a small amount of catalyst solution on a substrate, putting the substrate into a furnace, purging the furnace, and heating the substrate under a flow of gaseous carbon source. A pile of carbon nanotubes formed on the substrate. Nanotubes from the pile were spun into a fiber.
    Type: Application
    Filed: May 22, 2006
    Publication date: September 13, 2007
    Inventors: Lianxi Zheng, Yuntian Zhu