Patents by Inventor Tongbing SUN

Tongbing SUN 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).

  • Ultra-high molecular weight, ultra-fine particle size polyethylene, preparation method therefor and use thereof
    Patent number: 11530281
    Abstract: An ultra-high molecular weight, ultra-fine particle size polyethylene has a viscosity average molecular weight (Mv) greater than 1×106. The polyethylene is spherical or are sphere-like particles having a mean particle size of 10-100 ?m, having a standard deviation of 2-15 ?m and a bulk density of 0.1-0.3 g/mL. Using the polyethylene as a basic polyethylene, a grafted polyethylene can be obtained by means of a solid-phase grafting method; and a glass fiber-reinforced polyethylene composition comprising the polyethylene and glass fibers, and a sheet or pipe prepared therefrom; a solubilized ultra-high molecular weight, ultra-fine particle size polyethylene; and a fiber and a film prepared from the solubilized ultra-high molecular weight, ultra-fine particle size polyethylene may also be obtained. The method has simple steps, is easy to control, has a relatively low cost and a high repeatability, and can realize industrialisation.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: December 20, 2022
    Assignee: INSTITUTE OF CHEMISTRY, CHINESE ACADEMY OF SCIENCES
    Inventors: Huayi Li, Qian Li, Tongbing Sun, Caizhen Zhu, Ruigang Liu, Ning Zhao, Jian Xu
  • ULTRA-HIGH MOLECULAR WEIGHT, ULTRA-FINE PARTICLE SIZE POLYETHYLENE, PREPARATION METHOD THEREFOR AND USE THEREOF
    Publication number: 20190185596
    Abstract: An ultra-high molecular weight, ultra-fine particle size polyethylene has a viscosity average molecular weight (Mv) greater than 1×106. The polyethylene is spherical or are sphere-like particles having a mean particle size of 10-100 ?m, having a standard deviation of 2-15 ?m and a bulk density of 0.1-0.3 g/mL. Using the polyethylene as a basic polyethylene, a grafted polyethylene can be obtained by means of a solid-phase grafting method; and a glass fiber-reinforced polyethylene composition comprising the polyethylene and glass fibers, and a sheet or pipe prepared therefrom; a solubilized ultra-high molecular weight, ultra-fine particle size polyethylene; and a fiber and a film prepared from the solubilized ultra-high molecular weight, ultra-fine particle size polyethylene may also be obtained. The method has simple steps, is easy to control, has a relatively low cost and a high repeatability, and can realize industrialisation.
    Type: Application
    Filed: February 19, 2019
    Publication date: June 20, 2019
    Inventors: Huayi LI, Qian LI, Tongbing SUN, Caizhen ZHU, Ruigang LIU, Ning ZHAO, Jian XU