The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 04, 2017
Filed:
Sep. 07, 2012
Françoise Poulat, Sciez, FR;
Françoise Poulat, Sciez, FR;
SOCIETE ANONYME DES EAUX MINERALES D'EVIAN et en abrégé“S.A.E.M.E.”, Evian-les-Bains, FR;
Abstract
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 —at least one of the terephtalate compound and/or the monoethylene glycol is obtained from at least one bio-based material, and —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: —performing the method described above; and —Step D) converting the bio-PET into the bio-PET packaging element.