Patents by Inventor Friedrich Josef Weck

Friedrich Josef Weck 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).

  • Method of separating methylolphenols from solutions
    Patent number: 3981929
    Abstract: A method of separating methylolphenols from an organic solution containing the methylolphenols by contacting the organic solution with an aqueous alkaline borate solution in which lithium ions are present in a quantity greater than any other single alkali metal ion for a period of time sufficient to form a solid complex of the lithium and boron with the methylolphenols which then are separated from the organic solution.The methylolphenols subsequently may be recovered from the complex by decomposing the complex with acid and dissolving the released methylolphenols in an organic solvent.
    Type: Grant
    Filed: May 16, 1974
    Date of Patent: September 21, 1976
    Assignee: Kerr-McGee Corporation
    Inventors: Robert Elliott Davis, Friedrich Josef Weck