Crystallizing conveyor

CAFC
  • US 7,790,840 B2
  • Filed: 05/24/2006
  • Issued: 09/07/2010
  • Est. Priority Date: 05/24/2006
  • Status: Active Grant
First Claim
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1. A method of crystallizing a plurality of polymeric pellets, the method comprising:

  • a) introducing the plurality of polymeric pellets into a pneumatic conveying system at an inlet, the plurality of polymeric pellets comprising a crystallizable polymer having a crystallization temperature and a melting temperature; and

    b) pneumatically transferring the plurality of polymeric pellets from the inlet to an outlet with a conveying gas, the conveying gas having a temperature sufficient to maintain the plurality of polymeric pellets within a temperature range such that the plurality of polymeric pellets obtain a degree of crystallinity greater than about 30% prior to removal of the plurality of polymeric pellets from the outlet of the pneumatic conveying system.

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