What can be done to increase the glass transition temperature (Tg) of polyethylene terephthalate (PET)?
See answerPolyethylene terephthalate (PET) glass transition temperature limits its use, notably in packagings subject to heating.
By introducing POLYSORB® isosorbide as co-monomer during the resin synthesis, PEIT (polyethylene-co-isosorbide terephthalate) resin is created. POLYSORB® isosorbide introduction boosts resin temperature resisitance, enabling the use of PEIT in new demanding packaging applications.