Patents by Inventor Tibo ZHAO

Tibo ZHAO 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).

  • Fiber-reinforced rigid polyurethane foam composite railway sleeper with high fiber content and manufacturing method thereof
    Patent number: 10538615
    Abstract: A fiber-reinforced rigid polyurethane foam composite railway sleeper with high fiber content and a manufacturing method thereof. The railway sleeper is formed by bonding a plurality of fiber-reinforced rigid polyurethane foam composite boards with high fiber content by a binder, and the outer surface of the railway sleeper is provided with an anticorrosive paint film. The fiber-reinforced rigid polyurethane foam composite boards with high fiber content include a polyurethane resin as a matrix material and a fiber as a reinforcing material. The problem of insufficient impregnation of the polyurethane and the fiber is solved by using a plurality of technical means such as using a mixed polyether polyol having a low hydroxyl value and a low functionality, using a coupling agent, etc., thus a fiber-reinforced rigid polyurethane foam composite product having a density higher than 840 kg/m3 and a fiber content greater than 60% is manufactured.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: January 21, 2020
    Assignees: RAILWAY ENGINEERING RESEARCH INSTITUTE OF CHINA ACADEMY OF RAILWAY SCIENCES CORPORATION LIMITED, CHINA ACADEMY OF RAILWAY SCIENCES CORPORATION LIMITED
    Inventors: Bin Niu, Zhibin Zeng, Yonghua Su, Tibo Zhao
  • FIBER-REINFORCED RIGID POLYURETHANE FOAM COMPOSITE RAILWAY SLEEPER WITH HIGH FIBER CONTENT AND MANUFACTURING METHOD THEREOF
    Publication number: 20190185610
    Abstract: A fiber-reinforced rigid polyurethane foam composite railway sleeper with high fiber content and a manufacturing method thereof. The railway sleeper is formed by bonding a plurality of fiber-reinforced rigid polyurethane foam composite boards with high fiber content by a binder, and the outer surface of the railway sleeper is provided with an anticorrosive paint film. The fiber-reinforced rigid polyurethane foam composite boards with high fiber content include a polyurethane resin as a matrix material and a fiber as a reinforcing material. The problem of insufficient impregnation of the polyurethane and the fiber is solved by using a plurality of technical means such as using a mixed polyether polyol having a low hydroxyl value and a low functionality, using a coupling agent, etc., thus a fiber-reinforced rigid polyurethane foam composite product having a density higher than 840 kg/m3 and a fiber content greater than 60% is manufactured.
    Type: Application
    Filed: August 14, 2017
    Publication date: June 20, 2019
    Applicants: RAILWAY ENGINEERING RESEARCH INSTITUTE OF CHINA ACADEMY OF RAILWAY SCIENCES CORPORATION LIMITED, CHINA ACADEMY OF RAILWAY SCIENCES COPORATION LIMITED
    Inventors: Bin NIU, Zhibin ZENG, Yonghua SU, Tibo ZHAO