Coacervated highly absorptive polymers
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United States of America Patent
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-
May 4, 1993
Grant Date -
N/A
app pub date -
Dec 8, 1989
filing date -
Dec 8, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A composition which is includes discrete particles of a highly cross-linked macroporous hydrophobic polymer. The particles are of a first predetermined average diameter, and the polymer particles have entrapped therein and dispersed uniformly throughout an active ingredient. The composition also includes a coacervating agent mixed with the polymer particles in an amount sufficient to cause the polymer particles to collect forming dense clusters of coacervated particles of a second predetermined average diameter, the second predetermined average diameter being substantially in excess of the first predetermined average diameter.
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