Swedish specialty chemicals company Perstorp is pioneering in the PVC market with the introduction of a general-purpose plasticiser partly based on renewable raw material using a traceable mass balance concept. Emoltene 100 Pro is a dipropylheptyl phthalate (DPHP) designed to support the sustainable sourcing of renewable and recycled raw materials and reduction of carbon dioxide emission throughout the value chain.
The product has been designed as a low-carbon drop-in replacement for the company’s existing Emoltene 100 product, and will be available in two grades with different levels of renewable content based on mass balance.
"We launched the original Emoltene 100 plasticizer back in 2009 and it has ever since proven its performance in terms of durability and flexibility, especially for tough outdoor applications,” said Perstorp Business Manager Martin Hansson. “This track record drove us to keep working with the same DPHP molecule, but to give it a more sustainable design, in line with our customers’ demands as well as global sustainability trends in, for example, the automotive and construction industries.”
The renewable content of the first grade of Emoltene 100 Pro is biogas which replaces fossil natural gas as raw material. Emoltene 100 Pro, as well as all Perstorp Pro-Environment products, are certified according to the ISCC PLUS system (International Sustainability & Carbon Certification). Both the mass balance where Perstorp applies both physical and chemical traceability, as well as the GHG calculations, are certified.
Over the last few years, Perstorp has significantly expanded its portfolio of ‘Pro-Environment’ products, made from renewable and/or recycled raw materials, to cover polyols, de-icers, plasticizers, acids, aldehydes and alcohols.
The phthalate plasticiser DPHP is emerging as the main substitute for the low molecular weight DEHP, which used to be the most commonly used phthalate. However, under REACH, the use of DEPH without authorisation has been prohibited since 2015. This is also the case for the other low molecular weight phthalates BBP, DBP and DIBP.
Regulatory measures against the high-molecular weight phthalates DINP, DPHP and DIDP are said to be unnecessary, as they are not associated with the same epigenetic or endocrine disrupting effects and the group of low molecular weight phthalates, according to European Plasticisers. Recent independent studies have shown no evidence of adverse effects mediated via an endocrine mode of action for high phthalates in animal studies and, equally, there is no evidence for such effects in humans.
These products have undergone individual and comprehensive risk assessments completed by the European Union. The results of this risk assessment have confirmed that they are not reproductive agents, are not classified for any health or environmental hazard, and can be safely used in all current applications.