| http://www.w3.org/ns/prov#value | - The extruder employed is a 30 mm, twin-screw, with 5 temperature zones plus die, operating at T1 to Tn=280??? C., and 200 RPM. The PET was used without pre-drying, no vacuum was employed during processing, and no catalyst was employed. [0069] Three chain extenders of this invention designed and prepared according to the process described above were evaluated at different loads against a large numb
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