PVC FORMULATION | ADDITIVES
Figure 1. Test data from Emery Oleochemicals shows that different Wax E alternatives from its Loxiol bio-based lubricant range can effectively adjust die pressure for improved processing Source: Emery Oleochemicals
US-based AM Stabilizers produces heat stabilis- ers for flexible and rigid PVC markets and says its additive technical team at Valparaiso in Indiana, has been working at pace to meet rapidly changing processor needs. “Market demands can shift due to supply chain,
regulatory and environmental issues,” says Jason Labuda, President of the company. “For example, during the two recent tin stabiliser supply shortage AMS was able to supply the rigid PVC market with calcium-zinc stabilisers as a 100% replacement or offer tin stabiliser boosters – a 20% replacement – which allowed for equivalent performance at reduced cost,” he says. AM Stabilizers says its Technical Product Devel- opment has been centred around regulatory compliant market issues. “For example, AMS has developed PlastiStab 2520, a new alkyl phenol-free barium intermediate. This technology addresses REACH regulation demands now and into the future,” says Labuda.
“Other technical developments have included
providing calcium-zinc alternatives to traditional liquid barium-zinc stabiliser and tin stabiliser technologies. Movement toward environmentally friendly calcium-zinc technology allows for easier PVC recycling streams,” he says. “We are also committed to sustainability and have invested in solar energy provision, which generated 77% of the power needed to run the Valparaiso plant in 2022.”
Bio-based lubricants As attention focuses more intensely on carbon emissions, Emery Oleochemicals reports in- creased current demand for bio-based, biodegrad-
22 COMPOUNDING WORLD | June 2023
able and sustainable additives for PVC. “Increas- ingly companies want to reduce their carbon footprint and therefore request the origin of raw materials,” says Jana Ingraham, Global Marketing Manager, responsible for Green Polymer Additives within Emery. “Currently, suppliers to the building and construction industry are facing some challenges. However, the PVC additive market is stable in the long term,” she says. “Every customer has different demands, challenges and requirements. Therefore, solutions are very customer specific. The trend towards using more renewable feedstock in the future is set to increase and Emery Oleochemicals will continue to operate sustainably throughout its production process.”
Sustainable replacements Emery has developed a comprehensive range of high-performance polymer additives, including a wide range of lubricants, particularly suitable for PVC applications. “More PVC producers are looking to replace montan waxes with sustainable alternatives and a reliable supply chain,” says Dr Christian Mueller, Global Head of Business Devel- opment & Marketing of Emery’s Green Polymer Additives business. “The Green Polymer Additives business offers
alternatives to Wax E and Wax OP, which are proven to be suitable in PVC applications. These products, sold under the Loxiol brand name, are predominantly bio-based, compliant with FDA food contact regulations and have a secured raw material basis,” he says. The company says that Loxiol lubricants are made with up to 100% renewable resources, are biodegradable, and are available in more than 50 countries worldwide. Several alternatives to Wax E and Wax OP are available to allow for fine-tuning lubrication performance in polymer applications. The com- pany says, for example, that a rigid PVC test proved that different Wax E alternatives could adjust the die pressure to the appropriate level needed for a specific process (Figure 1).
CLICK ON THE LINKS FOR MORE INFORMATION: �
www.baerlocher.com �
www.ika-wolfen.de �
www.ingeniapolymers.com �
www.dow.com �
www.noracadditives.com �
www.adeka-pa.eu �
www.amstabilizers.com �
http://greenpolymeradditives.emeryoleo.com/additives/
www.compoundingworld.com
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