| 摘要 |
A process for preparing a PET composition is provided. The process includes the steps of: providing an early stage VPET and an RPET; comminuting the RPET; and blending the RPET and the early stage VPET to form a VPET/RPET blend, wherein the blending occurs prior to a polycondensation reaction. A process is also described that includes the step of: adding the comminuted RPET to the early stage VPET before a polycondensation reaction process, wherein contaminants are caused to diffuse out of the comminuted RPET. In a further process, the comminuted RPET is decontaminated in a step separate from the blending to form the VPET/RPET blend.
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