Patents by Inventor Chuanli REN

Chuanli REN 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).

  • Phosphazene compound, preparation method and use thereof
    Patent number: 11242362
    Abstract: Provided are a phosphazene compound, a method for preparing a phosphazene compound and a method for producing a polymer with a phosphazene compound as a catalyst. The compound of formula (I) or a solvate thereof, where A is a six- or eight-membered ring consisting of repeated P?N, and B is at least one of unsubstituted or substituted C1-6 alkylamino, unsubstituted or substituted C1-6 cycloalkylamino, unsubstituted or substituted arylamino, or halogen, and B is attached to A at phosphorus in P?N, where R is unsubstituted or substituted C1-6 alkyl, unsubstituted or substituted C1-6 cycloalkyl, unsubstituted or substituted aryl, or unsubstituted or substituted benzyl, or R forms C1-6 heterocycloalkyl together with N attached thereto.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: February 8, 2022
    Assignee: QINGDAO UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Zhibo Li, Na Zhao, Chuanli Ren, Xiaohui Fu, Shaofeng Liu
  • PHOSPHAZENE COMPOUND, PREPARATION METHOD AND USE THEREOF
    Publication number: 20190315786
    Abstract: Provided are a phosphazene compound, a method for preparing a phosphazene compound and a method for producing a polymer with a phosphazene compound as a catalyst. The compound of formula (I) or a solvate thereof, where A is a six- or eight-membered ring consisting of repeated ?P?N?, and B is at least one of unsubstituted or substituted C1-6 alkylamino, unsubstituted or substituted C1-6 cycloalkylamino, unsubstituted or substituted arylamino, or halogen, and B is attached to A at phosphorus in ?P?N?, where R is unsubstituted or substituted C1-6 alkyl, unsubstituted or substituted C1-6 cycloalkyl, unsubstituted or substituted aryl, or unsubstituted or substituted benzyl, or R forms C1-6 heterocycloalkyl together with N attached thereto.
    Type: Application
    Filed: June 19, 2019
    Publication date: October 17, 2019
    Inventors: Zhibo LI, Na ZHAO, Chuanli REN, Xiaohui FU, Shaofeng LIU