Method and apparatus for encapsulation of a liquid or meltable s

Details Method and apparatus for encapsulation of a liquid or meltable s Method and apparatus for encapsulation of a liquid or meltable s

1982-09-24

1983-12-27

Hall, James R.

Plastic and nonmetallic article shaping or treating: processes

Encapsulating normally liquid material

Liquid encapsulation utilizing an emulsion or dispersion to...

264 11, 264 13, 264 14, 425 5, 425 6, A61J 504

Patent

active

044229852

ABSTRACT:
A method for encapsulation of a liquid or meltable solid material, comprises the steps of forming a jet of a material to be encapsulated, simultaneously forming a coaxial jet of a capsule-forming material surrounding the jet of the material to be encapsulated, forming a coaxial jet of a heated circulating liquid surrounding the coaxial composite jet of the capsule-forming material and the material to be encapsulated, introducing the resultant coaxial triple jet into a flow of a cooling liquid to form capsules composed of a core of the material to be encapsulated and a capsule or coating film of the capsule-forming material. The heated circulating liquid has a temperature close to or higher than that of the capsule-forming material.

REFERENCES:
patent: 2911672 (1959-11-01), van Erven Dorens et al.
patent: 3962383 (1976-06-01), Hagiwara et al.
patent: 4251195 (1981-02-01), Suzuki et al.

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