Invention Grant
- Patent Title: Particulate encapsulation of liquid beads
- Patent Title (中): 液体珠的颗粒包封
-
Application No.: US09568272Application Date: 2000-05-10
-
Publication No.: US06413548B1Publication Date: 2002-07-02
- Inventor: Monica A. Hamer , James J. Marti , William A. Hendrickson
- Applicant: Monica A. Hamer , James J. Marti , William A. Hendrickson
- Main IPC: A61K914
- IPC: A61K914

Abstract:
Various materials, including generally non-compatible materials may be provided from a single delivery system by a unique encapsulation system. An encapsulation system is advantageously constructed as a core of aqueous liquid having at least 5% by weight water therein, and an encapsulant surrounding the core to form a stable encapsulated particle, the encapsulant comprising at least one layer of hydrophobic particles in contact with and surrounding the core, the core and hydrophobic particles providing an encapsulated system that has an average weight average particle diameter of from 0.05 to 25 micrometers and can support its own weight. The encapsulation system may be provided by a novel method of manufacture comprising providing a mass of hydrophobic particles having average mass diameter size of between 0.05 and 25 micrometers, providing droplets of an aqueous medium to the mass of particles, gently mixing the fine particles of aqueous medium and the hydrophobic particles to form a stable encapsulant system of droplets of the aqueous medium encapsulated by a shell of particles.
Information query