Patents Assigned to Huber Carbonates, LLC
  • Narrow particle size distribution calcium carbonate and methods of making same
    Patent number: 9193602
    Abstract: Calcium carbonate particles having very narrow particle sizes with a controlled D98 and minimal ultrafines (very small particles) are described. The particles are prepared by grinding a feedstock in a centrifugal grinding mill, which utilizes very high centrifugal forces to impact the particles with each other or grinding media.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: November 24, 2015
    Assignee: Huber Carbonates, LLC
    Inventors: Lane George Shaw, Gary Lee Hillebrenner