Method for encapsulating very finely divided particles

Details Method for encapsulating very finely divided particles Method for encapsulating very finely divided particles

1996-12-12

1999-08-31

Beck, Shrive

Coating processes

Particles, flakes, or granules coated or encapsulated

Inorganic base

427221, 427421, 118308, B05D 700

Patent

active

059451599

ABSTRACT:
The invention is directed to a method for the encapsulation of very finely divided solids within a continuous impervious coating of thermoplastic material. The method is carried out with continuous agitation during which the particles are coated with a plurality of sprayed layers of thermoplastic coating material while maintaining the particles in free-flowing powder consistency during the coating steps.

REFERENCES:
patent: 3992558 (1976-11-01), Smith-Johannsen et al.
patent: 4162165 (1979-07-01), Schwab
patent: 5306524 (1994-04-01), Rutz et al.

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