Patents Assigned to Crompton Co. /Cle
  • Patent number: 7407920
    Abstract: A process and composition for forming a non-Newtonian oil composition in the form of a grease comprising an overbased calcium salicylate and solid particles of colloidally dispersed calcium carbonate in the form of calcite is disclosed wherein the process comprises the steps of heating overbased calcium salicylate, amorphous calcium carbonate, and a converting agent comprising a fatty acid of twelve to twenty-four carbon atoms in an oleaginous medium, and then adding sufficient water, alcohol, and carbon dioxide to the mixture to complete the conversion of the amorphous calcium carbonate to calcite.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: August 5, 2008
    Assignees: Crompton Corporation, Crompton Co. /Cle
    Inventors: William D. Olson, Ronald J. Muir, Wayne MacKwood