Patent ID: 8022168
Filing Date: 2011-09-20
Classification: B29B,C08G,Y10T

Abstract:
1. A method for melt processing polyester polymer spheroids comprising: (A) introducing polyester polymer spheroids into a drying zone comprising a dryer, said polyester polymer spheroids having been gas stripped to 10 ppm or less of residual acetaldehyde, and having been manufactured in a melt phase polycondensation reaction to an intrinsic viscosity (It.V.) of at least 0.72 dL/g, said dryer feeding a melt processing zone, and drying the polyester polymer spheroids in the drying zone to produce dried spheroids, (B) introducing the dried spheroids in the melt processing zone, (C) melting the dried spheroids in the melt processing zone to produce a molten polymer, and (D) forming an article from the molten polymer.