Patents by Inventor Royal A. Meader, Jr.

Royal A. Meader, Jr. 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).

  • Preparation of hydrocarbon resins using zirconium tetrachloride
    Patent number: RE29654
    Abstract: Styrene is homopolymerized or copolymerized with alpha methyl styrene, preferably in the presence of limonene, with or without t-butyl styrene, using zirconium tetrachloride as the catalyst. The light colored resins formed are useful as .[.drying.]. .Iadd.dry .Iaddend.cleaning sizing agents and in hot melt adhesives.
    Type: Grant
    Filed: August 16, 1977
    Date of Patent: May 30, 1978
    Assignee: Schenectady Chemicals, Inc.
    Inventors: Kenneth C. Petersen, Royal A. Meader, Jr.