UL Certifies Energy Savings in Molding Nucleated PP
Milliken’s nucleators in PP save an average of 5-8% in processing energy for injection molding.
Milliken Chemical has long said that its Hyperform HPN nucleator for PP offers significant energy savings to injection molders—a claim that has now been verified independently by UL. Four grades of Hyperform HPN were reviewed by UL Environment & Sustainability, a unit of the global UL group, which confirmed that the nucleators enabled an average of 5% to 8% energy savings in injection molding thin-wall container lids or similar PP products.

Thin-wall PP packaging with Milliken’s nucleators molds with less energy and faster cycles.
These additives reportedly also allow for faster molding cycles and improve performance of recycled PP, enabling greater use of rPP in various applications. Milliken plans to pursue UL certification of additional nucleators in other applications, such as in thermoforming.
Related Content
-
Understanding the Effect of Pressure Losses on Injection Molded Parts
The compressibility of plastics as a class of materials means the pressure punched into the machine control and the pressure the melt experiences at the end of fill within the mold will be very different. What does this difference mean for process consistency and part quality?
-
How to Design Three-Plate Molds, Part 1
There are many things to consider, and paying attention to the details can help avoid machine downtime and higher maintenance costs, and keep the customer happy.
-
Use These 7 Parameters to Unravel the Melt Temperature Mystery
Despite its integral role in a stable process and consistent parts, true melt temperature in injection molding can be an enigma. Learning more about these seven parameters may help you solve the puzzle.