C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
117/47.1
C08J 9/22 (2006.01) B05D 7/02 (2006.01)
Patent
CA 1049336
ABSTRACT OF THE DISCLOSURE: A method for enveloping foamed polystyrene pellets suitable for producing lightened manufactured articles of cement. The method substantially comprises the continuous steps of introducing a stream of foamed polystyrene pellets into a mixing unit, feeding the pellets to n first station of the unit, continuously introducing at the first station a proportioned amount of water and water dispersible synthetic resins; feeding the 30 wetted pellets to a second station of the unit; continuously introducing at the second station an inert filler in a proportioned amount; feeding all of the material to a third station of the unit; presenting an obstacle to the progression of material in the unit to cause momentary accumulation of the material at a drying and polymerization zone; applying heat to the accumulated material at the zone to enhance drying and polymerization of the material; and thereafter delivering the material to an outlet of the unit.
219892
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