Patent ID: 9695276
Date: 2017-07-04
CPC Classifications: B29D,C08G

Claim:
1. A method for producing a bio-PET polymer comprising the following steps: preparing a mixture comprising: A) at least one diacid compound comprising a terephtalate compound; B) at least one diol compound comprising monoethylene glycol; and C) at least one crystallization retarding compound; wherein: at least one of the terephtalate compound and the monoethylene glycol is obtained from at least one bio-based material; and copolymerizing the mixture to obtain a bio-PET polymer comprising diacid units and diol units, wherein the bio-PET polymer comprises up to 7.5 mol % of Links) corresponding to the at least one crystallization retarding compound, based on the total number of moles of diacid units contained in the bio-PET.