Abstract: The invention relates to a process for producing a bio-based polyethylene terephthalate (PET) polymer, from at least one terephthalate compound obtained from at least one bio-based material, and at least one monoethylene glycol compound obtained from at least one bio-based material, Said process comprising the polymerization of the terephthalate compound and of the monoethylene glycol compound in the presence of at least one crystallization retarding compound, Said process being characterized in that the crystallization retarding compound is obtained from at least one bio-based material. The invention also relates to a bio-based PET polymer obtained by said process. Preferably, the process further comprises processing the bio-based PET polymer into a bio-based product such as a bio-based container or a bio-based packaging. The invention also relates to said bio-based product.

Abstract: The invention relates to a process for producing a bio-based polyethylene terephthalate (PET) polymer, from at least one terephthalate compound obtained from at least one bio-based material, and at least one monoethylene glycol compound obtained from at least one bio-based material, Said process comprising the polymerization of the terephthalate compound and of the monoethylene glycol compound in the presence of at least one crystallization retarding compound, Said process being characterized in that the crystallization retarding compound is obtained from at least one bio-based material. The invention also relates to a bio-based PET polymer obtained by said process. Preferably, the process further comprises processing the bio-based PET polymer into a bio-based product such as a bio-based container or a bio-based packaging. The invention also relates to said bio-based product.

Abstract: The invention relates to a process for producing a bio-based polyethylene terephthalate (PET) polymer, from at least one terephthalate compound obtained from at least one bio-based material, and at least one monoethylene glycol compound obtained from at least one bio-based material, Said process comprising the polymerization of the terephthalate compound and of the monoethylene glycol compound in the presence of at least one crystallization retarding compound, Said process being characterized in that the crystallization retarding compound is obtained from at least one bio-based material. The invention also relates to a bio-based PET polymer obtained by said process. Preferably, the process further comprises processing the bio-based PET polymer into a bio-based product such as a bio-based container or a bio-based packaging. The invention also relates to said bio-based product.

Abstract: The inventions relates to a method for processing polyethylene terephthalate (PET) comprising supplying PET raw material (S1), drying the PET raw material (S4) to a target moisture level, plasticizing the PET (S5), and injecting the plasticized PET (S6) into a mold. In this method, the target moisture level is between 60 ppm and 250 ppm to generate hydrolysis of PET during plasticization (S5) resulting in a controlled drop of intrinsic viscosity of the PET. According to other aspects of the invention, there is provided a method for forming a bottle and a method for packaging still beverage in this bottle.

Abstract: The invention relates to a process for producing a bio-based polyethylene terephthalate (PET) polymer, from at least one terephthalate compound obtained from at least one bio-based material, and at least one monoethylene glycol compound obtained from at least one bio-based material, Said process comprising the polymerization of the terephthalate compound and of the monoethylene glycol compound in the presence of at least one crystallization retarding compound, Said process being characterized in that the crystallization retarding compound is obtained from at least one bio-based material. The invention also relates to a bio-based PET polymer obtained by said process. Preferably, the process further comprises processing the bio-based PET polymer into a bio-based product such as a bio-based container or a bio-based packaging. The invention also relates to said bio-based product.

Abstract: The inventions relates to a method for processing polyethylene terephthalate (PET) comprising supplying PET raw material (S1), drying the PET raw material (S4) to a target moisture level, plasticizing the PET (S5), and injecting the plasticized PET (S6) into a mold. In this method, the target moisture level is between 60 ppm and 250 ppm to generate hydrolysis of PET during plasticization (S5) resulting in a controlled drop of intrinsic viscosity of the PET. According to other aspects of the invention, there is provided a method for forming a bottle and a method for packaging still beverage in this bottle.

Abstract: Pearls based on expanded polymers are produced by extruding an expandable composition containing a thermoplastic polymer and an expanding agent, and thereafter cooling and chopping the expanded material thus obtained.

Abstract: The invention relates to a composite structure, in particular to a sandwich structure comprising a structural layer (C1), a lightweight layer (C2) and optionally a reinforcing component made of rigid or semi-rigid foam and optionally a structural layer (C3). Said invention relates, in particular to a composite structure comprising a polyamide-based foam layer (C2), to a method for the production and use thereof.

Abstract: Pearls based on expanded polymers are produced by extruding an expandable composition containing a thermoplastic polymer and an expanding agent, and thereafter cooling and chopping the expanded material thus obtained.