Process aid for PVC foam sheet and pipe, and phthalate-replacement plasticizer.

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Among several new products featured at NPE2015 by Arkema, King of Prussia, Pa., were two novel additives for PVC applications. Plastistrength 566 acrylic process aid is a high-molecular-weight grade for extrusion of cellular PVC sheet and building products, including foam-core pipe, trim board, signage, and profiles. Said to deliver optimum melt strength and rheology, Plastistrength 566 provides exceptional foaming efficiency compared with standard process aids, along with closed cells and good surface finish. Also new are Vikoplast soy-based plasticizers for direct replacement of phthalates in consumer and industrial flexible PVC.