Societe Anonyme Des Eaux Minerales D'evian Et En Abrege, “s.a.e.m.e”

Sa Des Eaux Minerales D'evian Saeme

Françoise Poulat

Jean-Paul Besson

Philippe Reutenauer

Emilie Boutin

A polyethylene terephthalate (PET) polymer having diacid units derived from diacid compounds, said diacid units comprising: a) from 92.50 mol % to 97.75 mol % of terephthalic units derived from terephthalic acid (TA) or an ester thereof, and b) from 2.25 mol % to 7.50 mol % of 2,5-FDCA units derived from 2,5- furandicarboxylic acid (2,5-FDCA) or an ester thereof, and-diol units derived from diol compound(s), the diol units having monoethylene glycol units derived from monoethylene glycol (MEG), as well as to a method to prepare a PET polymer. The use of a 2,5-FDCA compound selected from 2,5- furandicarboxylic acid (2,5-FDCA) and esters thereof as an anti-crystallization comonomer in a PET polymer and a bio-based PET polymer in which the anti-crystallisation comonomer is bio-based.

PET polymer with an anti-crystallization comonomer that can be bio-sourced

The invention relates to a method for producing a bio-PET polymer comprising the following steps: Step A) providing at least one diacid compound, comprising a terephtalate compound; Step B) providing at least one diol compound, comprising monoethylene glycol; wherein &#x2014;at least one of the terephtalate compound and/or the monoethylene glycol is obtained from at least one bio-based material, and &#x2014;at least one of the diacid compound and/or the diol compound further comprises at least one crystallization retarding compound; and Step C) copolymerizing a mixture of the diacid compound and the diol compound to obtain a bio-PET polymer comprising diacid units and diol units, comprising up to 7.5 mol % of unit(s) corresponding to the at least one crystallization retarding compound, based on the total number of moles of diacid units contained in the bio-PET. The invention also relates to a method for producing a bio-PET packaging element, comprising the following steps: &#x2014;performing the method described above; and &#x2014;Step D) converting the bio-PET into the bio-PET packaging element.

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Sciez, France

Françoise Poulat