PVC stabilizers | additives feature
chemicals, but its major thrust is in polymer additives – especially PVC additives. PMC is currently consolidat- ing US manufacturing operations in Carrollton, Kentucky, and integrating the additives and technolo- gies it has acquired, notably from Dow and Arkema. Keith Mesch, CVI director, says that one effort
involves eliminating product redundancy. He adds the CVI is playing an important role in additive formulation and testing. “We will seek to develop products for current and new applications. We have new product concepts in the pipeline, and a fully developed testing lab for them in the CVI,” he explains. Applications that will benefit from these develop-
ment efforts include window profiles, cellular PVC compounds and weatherable products. “All of the PVC applications that continue to grow,” Mesch says.
Regulatory needs Companies such as Reagens are expending a great deal of effort in developing additives that comply with regula- tory initiatives like REACH. Mario Berna, R&D and technical service manager, says that a decade of development has led to an extensive portfolio of calcium
organic stabilizers (COS) for use in place of lead-based versions. Grades can be used in cable and building materials, as well as rigid applications like pipe, profiles and moulded fittings. In COS systems, basic stability comes from an
inorganic complex that acts as an acid scavenger, Berna says. The COS additives are especially suited to pipes
PMC’s Center for Vinyl
Innovation develops PVC additives for tough applications such as building profiles
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