𝐓𝐨𝐝𝐚𝐲'𝐬 𝐊𝐍𝐎𝐖𝐋𝐄𝐃𝐆𝐄 𝐒𝐡𝐚𝐫𝐞 ; 𝐏𝐕𝐂 𝐏𝐥𝐚𝐬𝐭𝐢𝐜𝐢𝐳𝐞𝐫𝐬 𝐅𝐨𝐥𝐥𝐨𝐰𝐢𝐧𝐠 𝐒𝐚𝐟𝐞𝐫 𝐒𝐮𝐬𝐭𝐚𝐢𝐧𝐚𝐛𝐥𝐞 𝐏𝐚𝐭𝐡!

𝐓𝐨𝐝𝐚𝐲'𝐬 𝐊𝐍𝐎𝐖𝐋𝐄𝐃𝐆𝐄 𝐒𝐡𝐚𝐫𝐞

𝐏𝐕𝐂 𝐏𝐥𝐚𝐬𝐭𝐢𝐜𝐢𝐳𝐞𝐫𝐬 𝐅𝐨𝐥𝐥𝐨𝐰𝐢𝐧𝐠 𝐒𝐚𝐟𝐞𝐫 𝐒𝐮𝐬𝐭𝐚𝐢𝐧𝐚𝐛𝐥𝐞 𝐏𝐚𝐭𝐡!

Plasticizers are for, the most part, phthalate-based ester additives that impart elasticity to PVC (PolyVinyl Chloride) to soften it, make it flexible and bendable for application development purposes. 


The current major trend in PVC plasticizers is to move away from very efficient low molecular weight variants due to increased regulations around negative human endocrine system absorption, most evident currently in Europe that will eventually spread to other global geographies.


𝐓𝐫𝐚𝐝𝐢𝐭𝐢𝐨𝐧𝐚𝐥 𝐥𝐨𝐰 𝐦𝐨𝐥𝐞𝐜𝐮𝐥𝐚𝐫 𝐰𝐞𝐢𝐠𝐡𝐭 𝐩𝐥𝐚𝐬𝐭𝐢𝐜𝐢𝐳𝐞𝐫 𝐭𝐲𝐩𝐞𝐬 𝐢𝐧𝐜𝐥𝐮𝐝𝐞: 


𝐃𝐄𝐇𝐏 (𝐃𝐢𝐄𝐭𝐡𝐲𝐥𝐇𝐞𝐱𝐲𝐥𝐏𝐡𝐭𝐡𝐚𝐥𝐚𝐭𝐞)

𝐃𝐈𝐁𝐏 (𝐃𝐢𝐈𝐬𝐨𝐁𝐮𝐭𝐲𝐥𝐏𝐡𝐭𝐡𝐚𝐥𝐚𝐭𝐞)

𝐃𝐁𝐏 (𝐃𝐢𝐁𝐮𝐭𝐲𝐥𝐏𝐡𝐭𝐡𝐚𝐥𝐚𝐭𝐞)

𝐁𝐁𝐏 (𝐁𝐞𝐧𝐳𝐲𝐥𝐁𝐮𝐭𝐲𝐥𝐏𝐡𝐭𝐡𝐚𝐥𝐚𝐭𝐞)


High molecular weight orthophthalates and alternative bio-based plasticizers are the emerging replacement choices. 


The existing in place REACH (Registration, Evaluation, Authorisation and restriction of CHemicals) Annex XIV regulation has restricted low molecular weight plasticizer use in Europe. Additionally, the 2020 implementation of a new REACH Annex XVII is targeted at severely reducing low molecular weight plasticizers being imported into Europe.


From another European perspective Regulation, ((EU) 2017/745) in 2021 will further restrict DEHP plasticizer in medical device use. Going further, the European Food Safety Authority (EFSA) has set plasticizer public health daily intake limits in food-contact materials for DEHP, DBP, BBP, and DINP (DiIsoNonylPhthalate) at 50 μg/kg (microgram per kilogram) of body weight, as well as 150 μg/kg for DIDP (DiIsoDecylPhthalate). 


Taken together, these plasticizer limits have generated significant interest in non-low molecular weight plasticizer alternatives in medical device and food packaging application development that will be outlined further.


Delving a bit further from a phthalate research standpoint, Scotland's Edinburgh University is completing a risk assessment study on DBP and DINP plasticizers as endocrine disruptors for use in medical applications. 


In a similar vein, the United States Environmental Protection Agency (EPA) is currently performing low molecular weight plasticizer risk assessments on DEHP, DBP, BBP, DINP, and DIBP. Also, the EPA, as requested by the key suppliers ExxonMobil Chemical, Evonik, Teknor Apex, and supported by their American Chemistry Council trade group, will risk assess evaluate high molecular weight DIDP and DINP plasticizers over the next three years. This evaluation is expected to come back positive for these two high molecular weight plasticizers, and they will be declared safe for use.


source : Donald Rosato -SpecialChem

image : Regulation ((EU) 2017/745) Restricts Use of DEHP in European Medical Devices in 2021

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