additives feature | PVC plasticizers
Perstorp’s new Oxo plant in
Stenungsund, Sweden, started
production earlier this year
other areas, including fl ooring, wall coverings, coated fabrics and various consumer goods. The producer says it has experienced strong,
double-digit growth for Hexamoll DINCH since its introduction. BASF expanded capacity from an original 25,000 tonnes/year to 100,000 tonnes/year in 2006 and to 200,000 tonnes/year in 2014. Hexamoll DINCH vies with Eastman 168 for market top spot among non- phthalates. Hexamoll DINCH also sets high standards with
regard to sustainability, BASF claims. Within its “Sustainable Solution Steering” evaluation process, which it applies to its entire portfolio to evaluate the value chain from cradle to grave, BASF puts products into one of four categories: accelerator, performer, transitioner, or challenged. Hexamoll DINCH was classifi ed as an accelerator. “Its unique performance comes along with an excellent toxicological profi le and a low migration rate,” the company says. This conclusion has recently been questioned by the Research Institute at McGill University Health Centre (RI
Perstorp says that tests show Pevalen’s low viscosity is less dependent on temperature than other general purpose plasticizers
MUHC) in Montreal, Canada. Its study, which was published in the journal Environmental Research, says that DINCH could have similar biological effects to DEHP, affecting metabolic processes in mammals. However, BASF says that the paper has “substantial fl aws” The McGill research team evaluated the effects of DINCH and two of its major metabolites with in-vitro experiments on the fat tissue of rats. They say DINCH behaved very similarly to DEHP. The paper’s lead author, Vassilios Papadopoulos, a researcher at RI-MUHC and professor of medicine at McGill Univer- sity, said it was diffi cult to assess whether DINCH exposure represented a risk to human health. In a statement to Film & Sheet Extrusion, a sister publication of Compounding World, BASF questioned the paper. “It’s not clear what substance they really tested, as the synthesis path and starting materials are completely different from our process,” says Beate Brugger, marketing manager for plasticizers in Europe. “The conclusions the authors made are not supported by the data shown. BASF is currently evaluating options to respond to the claims and statements put forward in this study.”
The French Agency for Food, Environmental and Occupational Health and Safety (Anses) recently conducted a risk management options analysis on DINCH and concluded that there is no need for any risk management measures under REACH.
In May, Perstorp offi cially opened a major extension to its capacity to produce PVC plasticizers and key chemical intermediates. The new state-of-the-art Oxo plant in Stenungsund, Sweden, began producing material soon after its start-up in January. The plant signifi cantly boosts Perstorp’s output of valeraldehyde and 2-propyl heptanol (2-PH), two key raw materials for
28 COMPOUNDING WORLD | August 2015
www.compoundingworld.com
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