Thermal crystallization of a molten polyester polymer in a fluid

  • US 7,192,545 B2
  • Filed: 11/10/2004
  • Issued: 03/20/2007
  • Est. Priority Date: 10/10/2003
  • Status: Active Grant
First Claim
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1. A process for crystallizing a polyester polymer comprising introducing a molten polyester polymer, made in the melt phase polycondensation process, into a liquid medium at a liquid medium temperature greater than the Tg of the polyester polymer before the molten polyester polymer falls to a temperature below its Tg.

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