Patents by Inventor GUANWEN YANG

GUANWEN YANG 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).

  • Organic metal-free catalysts with electrophilic and nucleophilic dual-functions, preparation methods of making the same, and uses thereof
    Patent number: 11780961
    Abstract: The present invention relates to a kind of organic metal-free catalysts containing both electrophilic and nucleophilic dual-functions, preparation methods of making the same, and uses thereof. The organic metal-free catalysts in the present invention have the chemical structure shown in formula (I): Compared with the metal-free organic polymerization catalytic systems that have been reported before, the organic metal-free catalysts in this invention have the combined advantages of simple preparation, high reactivity, easy operation, low cost, wide applicability, easy for industrial production.
    Type: Grant
    Filed: September 2, 2019
    Date of Patent: October 10, 2023
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Guangpeng Wu, Guanwen Yang, Yaoyao Zhang
  • ORGANIC METAL-FREE CATALYSTS WITH ELECTROPHILIC AND NUCLEOPHILIC DUAL-FUNCTIONS, PREPARATION METHODS OF MAKING THE SAME, AND USES THEREOF
    Publication number: 20210363297
    Abstract: The present invention relates to a kind of organic metal-free catalysts containing both electrophilic and nucleophilic dual-functions, preparation methods of making the same, and uses thereof. The organic metal-free catalysts in the present invention have the chemical structure shown in formula (I): Compared with the metal-free organic polymerization catalytic systems that have been reported before, the organic metal-free catalysts in this invention have the combined advantages of simple preparation, high reactivity, easy operation, low cost, wide applicability, easy for industrial production.
    Type: Application
    Filed: September 2, 2019
    Publication date: November 25, 2021
    Inventors: GUANGPENG WU, GUANWEN YANG, YAOYAO ZHANG