Solid material comminution or disintegration – Processes – With heating or cooling of material
Patent
1994-09-12
1996-12-31
Husar, John M.
Solid material comminution or disintegration
Processes
With heating or cooling of material
241 2428, 241 29, B02C 1900, B02C 1912
Patent
active
055885993
ABSTRACT:
A method for preparing resin chips for use as an intermediate product in the manufacture of artificial-granite and artificial-stone articles. The process consists of mixing a thermoplastic polyester-resin material with an alumina tri-hydrate (ATH) filler and with a pigment, if desired, in a heated extruder to produce a continuous stream of thermoplastic agglomerate. This product is allowed to cool, then it is cut, ground and screened to a predetermined size, as required to meet the size characteristics of the desired resin-chip product. The undersize fines produced by the grinding operation are recycled as thermoplastic feedstock to the extruder. The resin-chip material so produced may be further mixed with a filler, as required for a particular application, and packaged for sale to commercial users.
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Durando Antonio R.
Husar John M.
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