Compacting polycarbonate and copoly(carbonate/phosphonate) parti

Details Compacting polycarbonate and copoly(carbonate/phosphonate) parti Compacting polycarbonate and copoly(carbonate/phosphonate) parti

1982-07-22

1984-02-28

Hall, James R.

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

264118, B01J 222

Patent

active

044341180

ABSTRACT:
Polycarbonate or copoly(carbonate/phosphonate) resins of low bulk density are compacted by mechanical pressure into easily handleable and processable mattes which can be used to produce pellets. Typically loose material with a bulk density less than about 0.1 g/cm.sup.3 is compacted to a matte of material with a bulk density greater than about 1 g/cm.sup.3.

REFERENCES:
patent: 3758655 (1973-09-01), Wienand
patent: 4165978 (1979-08-01), Sanzenbacher et al.
patent: 4205162 (1980-05-01), Herscovici
patent: 4248819 (1981-02-01), Meyer et al.

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