Patents by Inventor Colin G. Francis

Colin G. Francis 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).

  • Organo-metal catalysts and processes for their preparation
    Patent number: 4292253
    Abstract: Metal catalysts for use in known heterogeneous catalysis processes are prepared by vaporizing a metal in a low pressure environment in the vicinity of an organic liquid polymer, so that the metal contacts and becomes anchored to the polymer. The resulting products have the metal in the form of small clusters, anchored to the polymer, this form of the metal being the catalytically most active form. The organometal polymers are stable at temperatures in the -40.degree. C..fwdarw.+40.degree. C. range. Suitable polymers include poly (methyl-phenyl siloxanes) and poly (phenyl ethers). Suitable metals include titanium, chromium, molybdenum, etcetera.
    Type: Grant
    Filed: April 3, 1979
    Date of Patent: September 29, 1981
    Inventors: Geoffrey A. Ozin, Colin G. Francis, Helmut X. Huber