Reduction in polystyrene foams with dibasic esters
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United States of America Patent
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Jun 1, 2004
Grant Date -
N/A
app pub date -
Jan 3, 2000
filing date -
Jan 3, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A foam reduction agent consisting of dibasic esters is shown and a process using a liquid contact with polystyrene foam wherein the higher boiling temperature of the dibasic esters and contact with the liquid provides a volume reduction process and less evaporation loss as well as safer transportation of the chemicals and the polystyrene in its reduced state. The resulting reduced sludge is also recyclable to superior quality raw polystyrene foam beads and the reduction agents are recoverable for future use. The resulting sludge also has unexpected beneficial uses hereto for unknown as a waterproofing agent.
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