Process for preparing pigment dispersible in paints and plastics concentrates
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United States of America Patent
Stats
-
Apr 8, 2003
Grant Date -
Feb 13, 2003
app pub date -
Jan 26, 2001
filing date -
Jan 26, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process for preparing an improved pigment which is readily dispersible in paints and plastics concentrates is provided. In accordance with the process, a particulate pigment is mixed with water to form a slurry thereof, and a surface active agent is mixed with the slurry so that the pigment therein is coated therewith. A preferred surface active agent is a mixture of ethoxylated sorbitan derivatives, non-ethoxylated mono and diglycerides and ethoxylated mono and diglycerides. After the pigment has been coated with the surface active agent, the coated pigment is dried.
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