Patents by Inventor Jianfang SHENG

Jianfang SHENG 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).

  • Polypropylene with narrow molecular weight distribution range and processes for preparation thereof
    Patent number: 10301405
    Abstract: Disclosed herein are a polypropylene with narrow molecular weight distribution and a process for preparing the same in a reactor using a Ziegler-Natta catalyst.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: May 28, 2019
    Assignees: Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corp, China Petroleum & Chemical Corporation
    Inventors: Liangshi Wang, Luqiang Yu, Shijun Zhang, Jinliang Qiao, Meifang Guo, Zhichao Yang, Jianjun Yin, Honghong Huang, Liping Hou, Jianfang Sheng
  • POLYPROPYLENE WITH NARROW MOLECULAR WEIGHT DISTRIBUTION RANGE AND PROCESSES FOR PREPARATION THEREOF
    Publication number: 20140121339
    Abstract: Disclosed herein are a polypropylene with narrow molecular weight distribution and a process for preparing the same in a reactor using a Ziegler-Natta catalyst.
    Type: Application
    Filed: October 30, 2013
    Publication date: May 1, 2014
    Applicants: BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHNA PETROLEUM & CHEMICAL CORP, CHINA PETROLEUM & CHEMICAL CORPORATION
    Inventors: Liangshi WANG, Luqiang YU, Shijun ZHANG, Jinliang QIAO, Meifang GUO, Zhichao YANG, Jianjun YIN, Honghong HUANG, Liping HOU, Jianfang SHENG