Patent ID: 7108500
Filing Date: 2006-09-19
Classification: B29B,B29C,B29K,C08J,Y02P,Y02W

Abstract:
1. Apparatus for recycling of PET-material, in which the PET-material to be processed is dried, crystallized and at least one of plasticized and molten, and the melt is processed to one of PET-granulate and PET-articles, and for performing a process having first and second processing steps, the apparatus comprising a pre-processing device for carrying out the first step of pre-processing the supplied PET-material having rotatable mechanical processing elements for drying and simultaneously crystallizing the PET-material at elevated temperature and an evacuable main-processing device for carrying out the second processing step, the evacuable main-processing device having mechanical processing elements for further drying, crystallizing and temperature increase of the PET-material supplied by the pre-processing device, a screw conveyor for transporting the PET-material from the pre-processing device to the main-processing device, means for controlling the temperature of the PET-material obtained by rotational energy of the processing elements, a further device for at least one of plasticizing and melting the material after the second processing step, the further device being arranged downstream of the main-processing device, a filtration device for filtering the PET-material arranged downstream of the further device for at least one of plasticizing and melting the PET-material, and a pressure reducer for maintaining a pressure of less than 150 mbar in the main-processing device.