MATERIALS | POLYOLEFIN ADDITIVES
of these sustainably sourced renewable feedstocks, the product’s cradle-to-gate carbon footprint is significantly reduced by up to 60%, compared to the global average product carbon footprint of conventional grades.” The first BASF products to be certified and included in the company’s Valeras portfolio are the workhorse antioxidants, Irganox 1010 BMBcert and Irganox 1076 FD BMBcert. The products will initially be produced at BASF’s site in Kaisten, Switzerland.
At a loading of 1,500 ppm in a 1 mm thick PET film, Chitec’s GA403 UV-blocking additive can block blue light up to 405 nm Source: Chitec
agricultural plastics, including sustainability requirements, increased chemical exposure, longer use durations and downgauging trends,” said Bettina Sobotka, head of global marketing and development for plastic additives at BASF. “BASF’s NOR [non-basic aminoether] HALS [hindered amine light stabilisers] solutions improve stabilisation by moving beyond solutions based on secondary and methylated HALS. Through collaboration with agricultural plastic producers as well as farmers, we facilitate the exchange of knowledge and expertise, creating solutions that will ultimately lead to improved crop yield.” The new stabiliser is part of BASF’s Valeras
portfolio, which the company says is designed to help users meet their sustainability goals. Renewable electricity is used to manufacture the additive, and the product form improves material dosing precision, among other benefits, the company says.
Right: Chitec’s Revonox 420V antioxidant has received US FDA food contact approval
BASF launched its first biomass-balanced plastics additives, certified by TÜV Nord for mass balance according to the International Sustainability and Carbon Certification (ISCC Plus) system, which supports using renewable feedstock to replace fossil feedstock and contributes to sustainable development by ensuring chain of custody along the value chain. The products are “drop-ins” to their conventional counterparts that provide identical performance as well as identical quality, product stewardship, and regulatory aspects, and thus do not require requalification or reformulation. “At the beginning of the value chain, fossil-
based raw material is replaced by ISCC certified bio-based feedstock and a corresponding amount is attributed to the product according to a mass balance approach,” said BASF. “Via the attribution
30 FILM & SHEET EXTRUSION | November/December 2024
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Food safety Chitec announced that its Revonox 420V antioxidant has received US FDA food contact substance notification (FCN) for use up to 0.1% (1,000 ppm) in HDPE, after previously receiving approval in PP. The phenol-free primary antioxidant is a hydroxylamine derived from renewable palm oil. It has good initial colour and is resistant to
gas-fading, the company reports. Chitec’s Revonox 501 is a patented, highly
efficient lactone-based chemistry that acts at low levels (50-100 ppm) as an acid scavenger or antioxidant booster. A new blend of Revonox 420V with Revonox 501 and Chitec’s nonmigrating phosphite is Revonox 601V. The blend is finding success in clear, thermoformed food packaging, where it prevents yellowing in material from in-house recycling. “We’ve found that the stabilised material can go
through more than six passes through the extruder without yellowing, which allows thermoformers to more than double their regrind capabilities and reduce waste,” said James Gacek, executive VP and managing director of North and Latin America for Chitec. The blend has FDA FCN approval in HDPE, and the company is seeking to expand the approval to other polymers. Chitec received an FDA FCN in 2023 for its novel UV blocker derived from vanillin and began
IMAGE: REVONOX
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