Patents by Inventor Mike Lemanski

Mike Lemanski 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).

  • Catalysts and processes for the manufacture of vinyl acetate
    Patent number: 5274181
    Abstract: A shell impregnated catalyst for use in the production of vinyl acetate from ethylene, acetic acid and an oxygen containing gas is provided. The catalyst has a productivity of greater than 661 grams of vinyl acetate per hour per liter of catalyst at 150.degree. C. and consists essentially of:(1) a catalyst support having a particle diameter from about 3 to about 7 mm and a pore volume of 0.2 to 1.5 ml per gram(2) palladium and gold distributed in the outermost 1.0 mm thick layer of the catalyst support particles, and(3) from about 3.5 to 9.5% by weight of potassium acetate.The catalyst is characterised by having a gold to palladium weight ratio in the range 0.60 to 1.25.
    Type: Grant
    Filed: October 7, 1992
    Date of Patent: December 28, 1993
    Assignee: BP Chemicals Limited
    Inventors: William J. Bartley, Simon Jobson, Gordon G. Harkreader, Melanie Kitson, Mike Lemanski