Process for drying and expanding microspheres

Details Process for drying and expanding microspheres Process for drying and expanding microspheres

1981-12-18

1983-08-09

Anderson, Philip E.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By gas forming or expanding

264 41, 264DIG6, 521 57, B29D 2700

Patent

active

043977995

ABSTRACT:
The present invention relates to a process for drying and expanding microspheres whereby first a dispersion of the microspheres in an inert liquid is prepared. This dispersion is then atomized in a hot inert gas. The process of the invention is advantageously carried out in a spray dryer.

REFERENCES:
patent: 2797201 (1957-06-01), Veatch et al.
patent: 3611583 (1971-10-01), Anderson et al.
patent: 3615972 (1971-10-01), Morehouse et al.
patent: 3651182 (1972-03-01), Rosenthal
patent: 3779941 (1973-12-01), Powell
patent: 3914360 (1975-10-01), Gunderman et al.
"Spray Drying"-Industrial & Engineering Chem., vol. 60, No. 10, pp. 53-63.

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