| 摘要 |
<p>This invetion relates to novel pigement compositions and processes of making the same. The pigments of the present invention are free-flowing and a process for their production comprises a process for the production of a free-flowing pigment composition comprising tumbling together a finely divided wax composition as herein defined with a powdered pigment for a time sufficient for substantialy all of the pigment to be coated onto or to be absorbed by the wax. Specifically, a pigment in accordance with the invention comprises a free-flowing nucleated pigment composition comprising a substantially spherical particulate spray-chilled wax composition (as herein defined) having coated thereon and partially absorbed thereinto a pigment in powdered form, the said pigment being present to the extent of 50% by weight or more.</p> |
