Patents Assigned to Dahlia Ireland Limited
  • Production of pigments
    Patent number: 6235104
    Abstract: Metal pigment, especially aluminum pigment is produced in a non toxic environment by milling and/or blending in an inert medium comprising transesterified alkyl, especially methyl esters of vegetable oils selected from soybean oil, cotton seed oil and linseed oil. The metallic pigments produced are of improved quality and appearance. They have improved brightness and the non-leafing pigments produced have highly leafing characteristics.
    Type: Grant
    Filed: February 12, 1999
    Date of Patent: May 22, 2001
    Assignee: Dahlia Ireland Limited
    Inventors: Arun Kumar Chattopadhyay, Thomas Aquinas Barry