Patent ID: 9656418
Date: 2017-05-23
CPC Classifications: B29B,B29C,B29K,B29L,C08G,Y10T

Claim:
1. A process for making a shaped article from a solid polyester resin containing a polyester polymer, comprising: forming the shaped article by melting and processing pellets of the polyester polymer without changing the intrinsic viscosity of the polyester polymer by more than 0.025 dL/g; wherein the polyester polymer before the melting has an intrinsic viscosity of from 0.70 to 0.95, and wherein the pellets of the polyester resin are: (i) made without solid-state polymerization, (ii) made with high IV melt polycondensation, and (iii) made by direct latent heat crystallization in which an extruded stream of the molten polyester polymer is quenched in a water bath containing water having a temperature of 80° C. or higher.