Process for coating solid particles

Details Process for coating solid particles Process for coating solid particles

1986-07-30

1987-09-01

Lusignan, Michael R.

Coating processes

Solid particles or fibers applied

Uniting particles to form continuous coating with...

71 6402, 118 19, 118303, 264117, 427212, 427220, 427242, B05D 700, B29C 6700, C09C 156, A01N 2500

Patent

active

046908340

ABSTRACT:
The present invention relates to a process for coating solid particles using a material being highly viscous or solid at room temperature, whereby a melt of a material being highly viscous or solid at room temperature, and the particulate material, to be coated, respectively, are introduced via separate conduits (19,22) to a hollow space (7) in a rotating mixing disc (3,4), and one or more spaces (13) for a solid material in said mixing disc (3,4) respectively, and are swept by the centripetal force outwardly toward the periphery of the disc (3,4), whereby the melt is pressed from its hollow space (7) via a slot (9) in the disc (3,4) in a direction towards the upper side of the disc (3,4) and thereby forms a finely dispersed melt in the form of small droplets creating a mist, which meets the particulate solid material being swept outwardly by the centripetal force, and is attached to the surface of said material to the formation of an unbroken coating of a material being highly viscous or solid at room temperature around said material.

REFERENCES:
patent: 3348938 (1967-10-01), Sherrington et al.
patent: 3991225 (1976-11-01), Blouin
patent: 4353852 (1982-10-01), Tse
patent: 4596206 (1986-06-01), Berge et al.

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