Patents Represented by Attorney, Agent or Law Firm David Ari Kalow
  • Continuous processes for producing titanium dioxide pigments
    Patent number: 6695906
    Abstract: Titanium dioxide pigments having improved gloss and durability are disclosed. These pigments are prepared by continuous processes, where pH, temperature, and addition times of hydrous silica and alumina coatings are carefully controlled.
    Type: Grant
    Filed: April 12, 2001
    Date of Patent: February 24, 2004
    Assignee: Millennium Inorganic Chemicals, Inc.
    Inventors: Michael Hiew, Yarw-Nan Wang, Les Hamor, Brian Tear, Robert McIntyre