Factors influencing the SPP Uprating of Polymers.

• Polymer morphology
• Polymer catalyst system
• Incoming feedstock molecular weight (measured as Intrinsic Viscosity IV).
• Target product IV. (Note All reference to IV measurements will require correlation of Customer and PETUK values)
• Feedstock moisture content.
• Pellet size, shape, cut and consistency.
• Polymer thermal history (for continuously produced polymer and recycle).
• Level of co-polymerisation or additive content.

Additionally PETUK applied processing profile, which is based on the above will take cognisance of the following;

• Batch size, dependent also on bulk density.
• Polymer heat transfer characteristics.
• Pellet quality and levels of dust.
• Special processing profiles to maintain/change Customer specific polymer characteristics.
• Adjustments arising through our own DSC analysis.

Pricing will be a function of reaction time and batch size; reaction time may be influenced by any of the all and above and by any Customer generic polymer variants or feedstock variability.