| http://www.w3.org/ns/prov#value | - It is an object of the present invention to provide a process for producing with good productivity PET which has a low oligomer content and produces a less amount of oligomers during the molding operation, whereby contamination of e.g. the mold scarcely occurs during the molding operation, and the amount of acetaldehyde produced during the molding operation is so small that it does not adversely a
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