Vapor phase coating technology for pharmaceutical abuse deterrent formulations

    公开(公告)号:US12233169B2

    公开(公告)日:2025-02-25

    申请号:US17004827

    申请日:2020-08-27

    Inventor: Colin C. Neikirk

    Abstract: A method of preparing an abuse deterrent pharmaceutical composition having a drug-containing core enclosed by one or more metal oxide materials is provided. The method includes the sequential steps of (a) loading the particles comprising the drug into a reactor, (b) applying a vaporous or gaseous metal precursor to the particles in the reactor, (c) performing one or more pump-purge cycles of the reactor using inert gas, (d) applying a vaporous or gaseous oxidant to the particles in the reactor, and (e) performing one or more pump-purge cycles of the reactor using inert gas. This produces an abuse deterrent pharmaceutical composition comprising a drug containing core enclosed by one or more metal oxide materials.

    Particle coating methods and apparatus

    公开(公告)号:US12146217B2

    公开(公告)日:2024-11-19

    申请号:US17590614

    申请日:2022-02-01

    Abstract: A reactor for coating particles includes a vacuum chamber configured to hold particles to be coated, a vacuum port to exhaust gas from the vacuum chamber via the outlet of the vacuum chamber, a chemical delivery system configured to flow a process gas into the particles via a gas inlet on the vacuum chamber, one or more vibrational actuators located on a first mounting surface of the vacuum chamber, and a controller configured to cause the one or more vibrational actuators to generate a vibrational motion in the vacuum chamber sufficient to induce a vibrational motion in the particles held within the vacuum chamber.

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