Controlled release formulations coated with aqueous dispersions of acrylic polymers
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United States of America Patent
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Jun 17, 1997
Issued Date -
N/A
app pub date -
Jun 2, 1995
filing date -
Jan 27, 1992
priority date (Note) -
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Abstract
A stable solid controlled release formulation having a coating derived from an aqueous dispersion of a hydrophobic acrylic polymer includes a substrate including an active agent selected from the group consisting of a systemically active therapeutic agent, a locally active therapeutic agent, a disinfecting and sanitizing agent, a cleansing agent, a fragrance agent and a fertilizing agent, overcoated with an aqueous dispersion of the plasticized water-insoluble acrylic polymer. The formulation provides a stable dissolution of the active agent which is unchanged after exposure to accelerated storage conditions.
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