Aqueous phosphate pigment dispersions
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United States of America Patent
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Jun 14, 1988
Grant Date -
N/A
app pub date -
Nov 12, 1986
filing date -
Nov 12, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
This invention relates to a aqueous phosphate pigment dispersion usable for sugar or film coating tablets and the like, comprising like pigment particles, a polymeric colloid, a phosphate viscosity lowering agent which permits a higher concentration of pigment particles in the pigment suspension, and an aqueous solvent. A typical pigment suspension comprises FD&C pigment, a natural gum as the polymeric colloid, a polyphosphate as the viscosity lowering agent and water as the aqueous solvent.
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