Patents by Inventor Li HAOQUAN

Li HAOQUAN 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).

  • Process for double carbonylation of allyl ethers to corresponding diesters
    Patent number: 9815766
    Abstract: The invention relates to a process for doubly carbonylating allyl ethers to the corresponding diesters, wherein a linear or branched allyl ether is reacted with a linear or branched alkanol (alcohol) with supply of CO and in the presence of a catalytic system composed of a palladium complex and at least one organic phosphorus ligand and in the presence of a hydrogen halide selected from HCl, HBr and HI.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: November 14, 2017
    Assignee: EVONIK DEGUSSA GMBH
    Inventors: Jie Lui, Li Haoquan, Matthias Beller, Ralf Jackstell, Robert Franke, Katrin Marie Dyballa
  • PROCESS FOR DOUBLE CARBONYLATION OF ALLYL ETHERS TO CORRESPONDING DIESTERS
    Publication number: 20170174609
    Abstract: The invention relates to a process for doubly carbonylating allyl ethers to the corresponding diesters, wherein a linear or branched allyl ether is reacted with a linear or branched alkanol (alcohol) with supply of CO and in the presence of a catalytic system composed of a palladium complex and at least one organic phosphorus ligand and in the presence of a hydrogen halide selected from HCl, HBr and HI.
    Type: Application
    Filed: December 14, 2016
    Publication date: June 22, 2017
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Jie LUI, Li HAOQUAN, Matthias BELLER, Ralf JACKSTELL, Robert FRANKE, Katrin Marie DYBALLA
  • PROCESS FOR DOUBLE CARBONYLATION OF ALLYL ALCOHOLS TO CORRESPONDING DIESTERS
    Publication number: 20170174610
    Abstract: The invention relates to a process for doubly carbonylating allyl alcohols to the corresponding diesters, wherein a linear or branched allyl alcohol is reacted with a linear or branched alkanol (alcohol) with supply of CO and in the presence of a catalytic system composed of a palladium complex and at least one organic phosphorus ligand and in the presence of a hydrogen halide selected from HCl, HBr and HI.
    Type: Application
    Filed: December 14, 2016
    Publication date: June 22, 2017
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Li HAOQUAN, Jie LUI, Matthias BELLER, Ralf JACKSTELL, Robert FRANKE, Katrin Marie DYBALLA