Process for the production of readily dispersible pigment preparations
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United States of America Patent
Stats
-
Oct 14, 1980
Grant Date -
N/A
app pub date -
Feb 23, 1979
filing date -
Feb 25, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process for the production of readily dispersible pigment preparations with a pigment content of more than 65% is disclosed. An aqueous suspension containing 25% to 50% by weight of a pigment is made and kneaded with heating to 60.degree.-70.degree. C. Following addition of a cation-active substance and an oleate, a binder dissolved in an organic solvent is added and a phase inversion takes place whereby water is separated out. After decantation, the organic mass of pigment is kneaded and dried.
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