additives feature | Antioxidants


PolyAd HTPP long-term heat stability performance data shows after 1,000 hours at 150°C, PP enhanced with PolyAd HTPP retains its initial tensile strength


Source: PolyAd Services


polyethylene wire and cable compounds, enabling them to reach ISO 6722 T3, T4, and even T5 classifi cation levels (T5 indicates ability to resist continuous exposure to 150°C).


And Magaha says the company continues to improve its 201 Iodide Stabiliser package for polyamides too. “With inorganic additives in organic polymers, you need to pay particular attention to things like dispersion,” he says. “We have made important progress in this area.” In addition, he points out that system costs have come down while performance has remained the same or even improved, due at least in part to the incorporation of bromides into the additive package alongside iodides, while he says progress is underway to enhance aspects such as resistance to automotive fl uids. Meanwhile, Korea’s Songwon has announced an


extension of its long standing Songnox PQ product line. Songnox PQ SB is a semi-bead dust-free product


designed to simplify in-plant dosing and handling in plant easier for customers due to its dust free form. Songwon 1162 FF triple blend - which contains Songnox PQ - is intended for biaxial oriented polypropylene (BOPP) applications, which the company says have one of the broadest approvals for indirect food contact applications globally. “After acquiring SeQuent’s Specialty Chemicals


business less than a year ago, we are proud to be able to offer Songnox PQ in this new product form,” says Thomas Schmutz, Leader Technical Service & Application Development, Business Unit Polymer Stabilizers. “The addition to our portfolio means that we now offer the broadest solid phosphite product range in our industry. It also highlights Songwon’s commitment to meeting the needs of our customers.” Songw on’s PQ stabilizer is said to suitable for a wide


range of applications including: thin wall injection moulding of PP; processing of BOPP and PP raffi a; production of LLDPE and mLLDPE cast fi lms; and processing of polyolefi n elastomers (POE), PA and PC polymers.


Click on the links for more information:  www.addivant.com  www.basf.com  www.everspringchem.com  www.mayzo.com  www.doverchem.com  www.cytec.com  www.mpi-chemie.com  www.polyadservices.com  www.songwon.com


NORNER - Expert Services in Plastic Additives NORNER is an industrially focused plastics institute.


Norner holds world leading competence in plastic additives and polymer modifi cation which includes a versatile centre for additive performance testing with sophisticated laboratory equipment and processing pilots. This includes a wide range of exposure testing facilities.


Recipe development, compounding, performance verifi cation, moulding and extrusion, exposure and life time testing and additive analysis.


How can we help you? read more at www.norner.no / post@norner.no


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