For a PET bottle with the #1 Resin Identification Code (RIC), is there a limit on how much of the bottle needs to be made of PET? Could a PET bottle with > 20 wt% additives still be classified by this #1 resin code? What is a typical wt% of additives found in a PET bottle?
Abdelkader BOUAZIZ
Dear Sean Okonsky, there are many sorts of additives, those related to processing (processing aids, thermal stabilizers, mold release, ...) and others related to the application (UV stabilizers, O2 barriers, colorant/dye, ...). The following documents bring additional information. My Regards
https://whattheythink.com/articles/71195-functional-additives-plastic-packaging/
https://doi.org/10.1016/j.jhazmat.2017.10.014
https://doi.org/10.1080/02652030400009217
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