Patents by Inventor Randall K. Whitmire

Randall K. Whitmire 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).

  • Purified hydroxy-functional polyether compounds
    Patent number: 5342541
    Abstract: The concentration of propenyl ethers in a hydroxy-functional polyether having oxypropylene units is reduced by a process including the step of contacting the polyether with an acid ion exchange resin for a time and at a temperature sufficient for the conversion of at least some of the propenyl ethers to propionaldehyde and in the presence of sufficient water for the conversion. Optionally, the polyether is treated with an epoxy compound in an amount sufficient to reduce the acidity of the polyol.
    Type: Grant
    Filed: March 29, 1989
    Date of Patent: August 30, 1994
    Assignee: The Dow Chemical Company
    Inventors: Johnny Chavez, Jr., Andrew S. Farnum, Vaughn M. Nace, Raymond A. Plepys, Randall K. Whitmire, Van A. Kent, Paul D. Bettge, Hans R. Friedli