Patents by Inventor Ronald D. Knudsen

Ronald D. Knudsen 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).

  • Ethylene dimerization
    Patent number: 4487847
    Abstract: A novel ethylene dimerization catalyst is provided consisting essentially of a nickel compound, a phosphine compound, and an acidic compound. In addition, an improved ethylene dimerization process is provided which comprises contacting ethylene with the novel catalyst composition present, in an effective solvent, at a temperature from about 0.degree. C. to about 200.degree. C. As a result of the inventive process, high catalyst productivity and good selectivity to the desired dimerized product, 1-butene, is obtained.
    Type: Grant
    Filed: July 25, 1983
    Date of Patent: December 11, 1984
    Assignee: Phillips Petroleum Company
    Inventor: Ronald D. Knudsen
  • Ethylene oligomerization
    Patent number: 4482640
    Abstract: A novel ethylene oligomerization catalyst is provided consisting essentially of a nickel compound, a phosphine compound, and an acid. In addition, an improved ethylene oligomerization process is provided which comprises contacting ethylene with the novel catalyst composition present, in an effective solvent, at a temperature from about 0.degree. C. to about 200.degree. C. As a result of the inventive process, high catalyst productivity and good selectivity to desired oligomeric products are obtained.
    Type: Grant
    Filed: May 2, 1983
    Date of Patent: November 13, 1984
    Assignee: Phillips Petroleum Company
    Inventors: Ronald D. Knudsen, Stephen E. Reiter
  • Monohalogenation of substituted phenol
    Patent number: 4284830
    Abstract: Monohalogenated hydrocarbyl substituted phenols can be produced by reacting hydrocarbyl substituted phenols with a halogen carrying out the reaction in a diluent such as benzene, alkyl substituted benzenes, and halosubstituted hydrocarbons of 1-3 carbon atoms.
    Type: Grant
    Filed: February 1, 1980
    Date of Patent: August 18, 1981
    Assignee: Phillips Petroleum Co.
    Inventors: Ronald D. Knudsen, Darryl R. Fahey
  • Cleavage of alkylenebisphenols
    Patent number: 4258221
    Abstract: Alkylenebisphenols are converted or cleaved to phenols and alkyl- and/or alkenyl-substituted phenols in good yields by contacting with hydrogen in the presence of a nickel oxide/manganese oxide/metal oxide supported catalyst. In a specific embodiment, bisphenol A is converted to isopropylphenol at high selectivity and high conversion by contacting with hydrogen in the presence of a nickel oxide/manganese oxide/magnesium oxide catalyst.
    Type: Grant
    Filed: April 11, 1979
    Date of Patent: March 24, 1981
    Assignee: Phillips Petroleum Company
    Inventors: Ronald D. Knudsen, Geir Bjornson