Patents by Inventor John L. Dorsch

John L. Dorsch 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).

  • Internally coated reaction vessel for use in olefinic polymerization
    Patent number: 4579758
    Abstract: This invention relates to a polymerization reaction vessel having a coating on the inner surfaces thereof resulting from applying thereto an aqueous coating solution of an alkali metal or ammonium salt of the reaction product or oligomers of an aromatic aldehyde, such as benzaldehyde, and the like, and a polyhydric phenol, such as resorcinol, and the like. When polymerizing olefinic monomers, such as vinyl halides, vinylidene halides, and vinylidene monomers having at least one terminal CH.sub.2 .dbd.CH< group, and mixtures thereof, while a contact with said coating, polymer buildup on the inner surfaces of the reaction vessel is substantially eliminated.
    Type: Grant
    Filed: February 24, 1983
    Date of Patent: April 1, 1986
    Assignee: The B. F. Goodrich Company
    Inventors: John L. Dorsch, John D. Smith