Patents Examined by Deborah O. Lambkin
  • Alkoxylation of 6-membered alkylene carbonates
    Patent number: 6498278
    Abstract: A method for the preparation of &ggr;-hydroxy ethers from cyclic organic carbonates and active-hydrogen-containing compounds in one form includes the steps of contacting an active-hydrogen-containing compound and a cyclic organic carbonate compound containing a six-membered ring, and a catalyst, running the reaction at a suitable temperature, and isolating the &ggr;-hydroxy ether as a mixture that can be purified or used directly as produced in the reaction.
    Type: Grant
    Filed: September 5, 2001
    Date of Patent: December 24, 2002
    Assignee: Huntsman Petrochemical Corporation
    Inventors: John H. Clements, Howard P. Klein, Edward T. Marquis