Patents by Inventor Chunhong Xia

Chunhong Xia 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).

  • Catalyst component and catalyst for olefin polymerization, and application thereof
    Patent number: 11970510
    Abstract: Disclosed are a catalyst component and a catalyst for olefin polymerization, and an olefin polymerization method. The catalyst component comprises magnesium, titanium, a halogen and an internal electron donor, wherein the internal electron donor comprises a monocarboxylic acid ester compound and a diether compound, and the molar ratio of the monocarboxylic acid ester compound to the diether compound is (0.0035-0.7):1. By using the catalyst, a polymer having both a high isotactic index and a high melt flow index can be prepared.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: April 30, 2024
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION
    Inventors: Jin Zhao, Xianzhi Xia, Yuexiang Liu, Yang Tan, Chunhong Ren, Weili Li, Long Chen, Futang Gao, Yongtai Ling, Tao Liu
  • Notebook ultrasonic module
    Patent number: D754665
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: April 26, 2016
    Assignee: Edan Instruments, Inc.
    Inventors: Renfu Zhang, Chunhong Xia, Shunjin Xiao