Patents by Inventor Chloe Johnson

Chloe Johnson 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 PREPARING CYCLIC CARBONATES WITH AN EXOCYCLIC VINYLIDENE GROUP
    Publication number: 20230094796
    Abstract: A process can be used for preparing cyclic carbonates with an exocyclic vinylidene group by reacting a propargylic alcohol with CO2 in the presence of a silver catalyst having at least one bulky ligand a lipophilic carboxylate ligand. After completion of the reaction, the catalyst is separated from the cyclic carbonate by the use of two organic solvents of different polarity and having a miscibility gap. The silver catalyst is enriched in the less polar solvent and the cyclic carbonate in the more polar solvent.
    Type: Application
    Filed: January 5, 2021
    Publication date: March 30, 2023
    Applicant: BASF SE
    Inventors: Thomas SCHAUB, Peter Rudolf, Ulrike Licht, A. Stephen K. Hashmi, Saumya Dabral, Chloe Johnson