Process and apparatus for reprocessing polyurethane foam wastes, in particular flexible foam wastes, for recycling as additives in the production of polyurethane
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United States of America Patent
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-
Sep 19, 1995
Grant Date -
N/A
app pub date -
May 3, 1994
filing date -
May 14, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a fine comminution apparatus arranged downstream of a coarse comminution apparatus, polyurethane foam wastes can be comminuted to the desired particle size for recycling as an additive in the production of polyurethane, in a low-dust and energy-saving manner, by carrying out the fine comminution preferably by repeatedly forcing a mixture of the coarsely comminuted material and one of the reaction components through a nozzle or through a plurality of nozzles.
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Cited Art Landscape
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