Patents Examined by Edward Smith
  • Magnesium halide hydrates and polymerization catalysts prepared therefrom
    Patent number: 4853444
    Abstract: An inexpensive one-step process is disclosed for producing the lower hydrates of magnesium dihalide by comminuting hydrated magnesium dihalide and anhydrous magnesium dihalide. Also the use of such hydrous magnesium dihalide products in the olefin polymerization catalysts.
    Type: Grant
    Filed: February 11, 1985
    Date of Patent: August 1, 1989
    Assignee: Phillips Petroleum Company
    Inventors: Kenneth E. Inkrott, Gil R. Hawley