Agglomeration processes paste extrusion

Most systems function with paste but Young et al. (10) described the use of a process whereby the extrusion was with a hot-melt system, the extrudate cut in a pelletizer (Randcastle RCP-2,0, Randcastle Inc. Cedar Grove. New Jersey, U.S.A.) into cylindrical pellets, which were then spheronized on a conventional spheronizer (Caleva Model 120, AC Compacting LLc, North Brunswick, New Jersey, U.S.A.) heated with a heat gun to 65-70 C while dusting with microcrystalline cellulose (MCC) to prevent agglomeration. The picture of the pellets shown to illustrate the product appears round but the process times of 45 and 80 minutes are considerably longer than those involved with the paste systems. 

Uses Processing aid, dispersanL plasticizer, release agent for rubber prevents agglomeration of fillers in highly loaded compds. reduces slicking to process equip. improves extrusion, release Featwes Provides easier incoqraralion of fillers F roperties Lt. bm. paste sp.gr. 0.89 bulk dens. 890 g/l drop pt. 42 C Use Level 0.63%... 

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