B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/1130
B29C 43/02 (2006.01) B29B 17/00 (2006.01) B29C 33/62 (2006.01) B29C 35/02 (2006.01) B29C 35/04 (2006.01) B29C 35/16 (2006.01)
Patent
CA 2016540
Abstract The present invention relates to a process and a device for processing plastic waste, such as packaging foil of polyvinylchloride, polyethylene, polypropylene etc. into blocks by compressing it in a container. Said compres- sing of the plastic waste is achieved by means of a punch at a temperature of 120 - 180°C and a pressure of 250 - 400 g/cm2 and preferably at a temperature of 140 - 160°C and a pressure of 260 - 290 g/cm2, followed by cooling with air. The cooling is carried out by the introduction of air in the container by means of a fan, which cooling takes place in 5 - 15 minutes, and preferably 8 - 10 minutes. The device of the invention is provided with a punch, whereas the inner surfaces of said container and/or said punch are provided with a coating in order to prevent said softened and compressed plastic waste from adhering to the walls. Said coating is preferably teflon, whereas the heating elements advantageously are electrical heating elements.
de Soet Antonius Hendrikus
Moffat & Co.
Thermopers B.v.
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