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Materials and application know-how

POLYMETRIX is the specialist for thermal treatment of bulk materials. We focus on the processing and refining of virgin and recyclable polyesters, polyamides and other polymers.

Products from our plants are mainly used as packaging material for food, as high-strength yarn for airbags or seatbelt webbing, as a special polymer in electrical engineering or for high-quality textiles.

The demanding product properties for these applications are achieved by thermal treatment such as solid state polycondensation (SSP), drying and conditioning or crystallization. Depending on the application, up to 100% recycled material can be processed.

To design our processes, we analyze the relevant material characteristics in our own test center with regard to processing and the demands of the final applications. The data from the tests serve us as a basis for process simulation and the scale-up of industrial plants.


vPET for food packaging

Virgin PET (vPET) is produced form oil or renewable resource based monomers. The POLYMETRIX solid state polycondensation (SSP) technology is the last step in the manufacturing chain and upgrades the PET to fulfill the demanding quality and food safety requirements for food packaging applications.

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rPET for food packaging

POLYMETRIX PET recycling technologies make it possible to convert post-consumer PET bottles into recycled PET (rPET) suitable for direct food contact applications. The rPET pellets are fully compatible with virgin PET and are used for beverage bottles and food trays with up to 100% rPET content.

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vPET for technical applications

POLYMETRIX SSP process technology is particularly well suited to produce PET pellets with very high viscosity. The high viscosity PET pellets are required for the manufacture of high tenacity yarns, packaging straps and other specialties.

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rPET for technical applications

POLYMETRIX SSP process technology is particularly well suited to produce rPET pellets or flakes with very high viscosity. The high viscosity rPET is mostly used for packaging straps but it also finds its way into other high tenacity applications.

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Polyamides for technical applications

Polyamide (PA) pellets for high-quality textiles and technical applications are manufactured using POLYMETRIX conditioning and SSP process technology. The processes adjust the viscosity and the equilibrium moisture content in the PA pellets to the requirements for subsequent spinning or molding processes.

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Other polymers

POLYMETRIX process technologies are used to treat various types of polymers according to the requirements for subsequent processing or packing. The technologies are particularly suitable for processing polymer pellets or flakes, such as polybutyleneterephthalate (PBT), polytrimethyleneterephthalate (PTT), polycarbonate (PC) and poly lactic acid (PLA).

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