ADDITIVES | COMPATIBILISERS
Right: Images showing the effect of Yparex OH17 compatibiliser on gels in a recycled PE film. The sample on the left has no compatibi- lizer; the sample on the right has a 10 wt% addition of Yparex
and enhancing physical properties,” the company says. “In addition, because the product is well stabilised, it can be used across a large tempera- ture profile in many compounding applications.”
Extending reach Netherlands-based Polyscope Polymers’ core business is based on styrene-maleic anhydride and the company claims to have significantly grown its market share in this sector over the past decade. Its acquisition earlier this year by Vertellus is expected to support future its growth ambitions. “With this acquisition, Polyscope has expanded its reach within the specialty additives market,” says Patrick Muezers, Polyscope CEO. “We will be able to leverage Vertellus’ global resources, capabilities and strong market leadership to better serve [existing and new] customers.” Potential synergies between the Polyscope and
Vertellus portfolios are currently being investigat- ed. “New synergies will continue to emerge, but ZeMac, an ethylene MA copolymer offered by Vertellus, is already proving highly complementary to Polyscope’s current offering,” says Muezers. “The combination of our additives will help us
provide answers to our customers’ questions about Xibond blend optimisers. We have seen an increasing demand for more sustainable solutions. For example, we have initiated projects where our additives will support the processing of bio-based plastics in PLA/PBAT combinations. In this case, our Xibond compatibilisers are essential to enable optimal performance across applications and developments, including the switch from traditional PE bags to bio-based shopping bags,” he says. “Furthermore, we increasingly see opportunities
to offer solutions for the upcycling of various polymers. Some of our customers have even found that our compatibilisers can contribute to making blends from ‘plastic soup’ in combination with ABS, enabling PET/ABS blends that can be used in applications such as in housing for electrical appliances,” Muezers explains. “Finally, we have developed our experience
46 COMPOUNDING WORLD | May 2022
around our Xibox service model, through which we help our customers to speed up the product development phase, reducing the length of the process by several weeks or, in some cases, months. We use a small tabletop mini extruder to undertake a quick screening of customers’ formulations.” The Xibox screening concept is said to have been adopted by several customers facing chal- lenges working with multiple recycling streams. Olebond products from Turkey’s Tisan Engi- neering Plastics are maleic anhydride grafted polymers produced by reactive extrusion. “Accord- ing to grafting level and polymer type, Olebond help to improve compound performance by acting as compatibiliser, coupling agent, impact modifier and adhesive agent,” the company claims. Olebond 7401 grades based on PP and with high maleic content are used in PP compounds as a coupling agent between polymer and filler. The 7401 grade can also help improve mechanical performance characteristics in blends of PP and immiscible polymers such as PA, the company says. Olebond 7402 grade is used as a compatibiliser and coupling agent in applications ranging from halogen-free cable compounds, multilayer pipes, composite panels and PE blends with other polymers. As a compatibiliser, Olebond 7402 is said to improve the interphase adhesion of PE to polymers such as PA and other polyolefins. “Olebond 7402 offers the best dispersion between mineral fillers, fibres and polymer matrix and increases the mechanical properties of polymer compounds. For example, when used in talc filled polymer compounds, Olebond 7402 doubles the dispersion of the talc,” according to Tisan. Other Olebond grades include ABS and
EVA-based products that can be used as compati- bilisers in different products. Olebond 7404 is an MA grafted ABS and Olebond 7405 is MA grafted ethylene vinyl acetate (EVA). Korea-headquartered SK Functional Polymer
(SKFP) offers a full range of compatibilisers and recycling boosters that are claimed to allow users
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IMAGE: THE COMPOUND COMPANY
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