B - Operations – Transporting – 29 – B
Patent
B - Operations, Transporting
29
B
B29B 17/00 (2006.01) B29B 13/10 (2006.01) B29B 17/04 (2006.01)
Patent
CA 2075275
A method and system for recycling waste materials enables the treatment of masses of waste including thermosetting plastics materials, high-melting thermoplastics materials, aluminium, wood, paper, fabrics, etc. The mass of waste is first subjected to a grinding process, preferably in two stages, to reduce it to a maximum particle size of the order of 10 mm. The granular material thus produced undergoes a heating and mixing process and is then reduced to sheet or strip form and simultaneously cooled in order to undergo a scraping or shaving process which leads to the formation of a mass substantially comparable to a powder with a particle size of between 50 and 1000 microns, including a certain quantity of fibres. The shavings produced can be mixed with a better-quality plastics material, at least some of which may be produced from fairly large articles made of plastics materials which are first separated from the mass to be treated and ground separately, to produce a recycled plastics material in which the fraction of thermosetting materials, high-melting thermoplastics, aluminium, etc. constitute a filler and a fibrous reinforcing structure.
Oyen Wiggs Green & Mutala Llp
Stroppiana Fernando
LandOfFree
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