Thermal tumbling granulation

Details Thermal tumbling granulation Thermal tumbling granulation

1979-08-03

1982-01-12

Lieberman, Allan

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Agitating to form larger particles

264310, 106297, 106300, 106304, 106307, 106308Q, 106308F, 106308M, C08J 300

Patent

active

043104835

ABSTRACT:
A process for producing a granulate of difficultly fusible additives for plastics, particularly of pigments, by thermal tumbling granulation, which process comprises mixing the additive in powder form with a granulating auxiliary which softens between 30.degree. and 200.degree. C. and which has a particle size of 0.1-2.0 mm; and subjecting this mixture to a gentle rotary motion, with heating by means of a source of heat being simultaneously applied at least until softening of the granulating auxiliary commences.

REFERENCES:
patent: 3318538 (1967-05-01), Needham
patent: 3674736 (1972-07-01), Lerman et al.
patent: 3694402 (1972-09-01), Maltby
patent: 3778288 (1973-12-01), Ridge et al.
patent: 3909472 (1975-09-01), Fischer et al.
patent: 4154622 (1979-05-01), Momoi et al.
patent: 4170487 (1979-10-01), Robertson

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