Core-shell particles and process for their preparation

A particulate composition comprising particles having a core comprising a hydrophobic polymer within a shell, characterised in that the shell comprises a semi-permeable membrane. Particulate composition can be used for making a stable dispersion of particles uniformly distributed throughout a first...

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Bibliographische Detailangaben
Hauptverfasser: JANINE ANDREA PRESTON, KISHOR KUMAR MISTRY, KENNETH CHARLES SYMES
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A particulate composition comprising particles having a core comprising a hydrophobic polymer within a shell, characterised in that the shell comprises a semi-permeable membrane. Particulate composition can be used for making a stable dispersion of particles uniformly distributed throughout a first hydrophobic liquid, wherein the particles comprise a core within a shell and the core comprises a hydrophobic polymer into has been imbibed a second hydrophobic liquid, Compositions can be used to encapsulate active substances and may be used in sustained release mechanisms.