Extended release plastic formulation
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United States of America Patent
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Jun 13, 2023
Grant Date -
Feb 16, 2023
app pub date -
Dec 31, 2020
filing date -
Dec 31, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
A plastic material for extended release of a bio-active agent, the plastic material comprising a structural polymer, at least one bio-active ingredient embedded within the structural polymer as solid islands, a liquid binding material embedded within the structural polymer as granules, and a carrier liquid absorbed within the liquid-absorbent material. The carrier liquid may be sufficiently non-compatible with the structural polymer so that at least a portion of the carrier liquid is released from the liquid-absorbent material through the structural polymer to an outer surface of the plastic material over a period of time, such as a week or more, a month or more, or about three months. The bio-active agent comprised in the at least one bio-active ingredient may be sufficiently soluble in the carrier liquid at room or body temperature so that the carrier liquid released to the outer surface comprises the bio-active agent in solution.
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