Process for the production of resins based on poly (ethylene terephthalate) resins based on poly (ethylene terephthalate) and the use of such resins.

摘要

Process for the production of resins based on poly (ethylene terephthalate) resins based on poly (ethylene terephthalate) and the use of such resins.The present invention relates to a process for the production of resins based on poly (ethylene terephthalate) (PET), modified by the incorporation of comonu00f3meros that may be obtained from green chemical routes, such as glycerol and derivatives thereof, as an alternative to etile Noglicol as a source of hydroxyl in the reaction.An additional objective is the development of sustainable alternatives for the production of materials derived from pet with higher molar mass, intrinsic viscosity and transparency (reduction of crystallinity), as required by the film industry and packaging.The invention relates also to the use of materials derived from pet modified by the incorporation of comonu00f3meros that may be obtained from chemical routes and their own sustainable materials derived from pet modified (resins) through the incorporation of comonu00f3meros that Can be obtained from green chemical routes.