METHOD FOR RECYCLING CURED FOAM INSULATION FOR USE IN INSULATING CAVITIES OF DEVICES REQUIRING THERMAL INSULATION
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United States of America Patent
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Issued Date -
Dec 8, 2011
app pub date -
Aug 2, 2010
filing date -
Jun 3, 2010
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Abandoned
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Abstract
A method of recycling cured foam insulation having an internal cell/bubble structure is described. The method comprises cutting the cured foam cell insulation into foam pieces of predetermined sizes and shape dependent on the dimensions of cavities to be insulated and incorporating the foam pieces therein. A predetermined volume of the cavities is filled with the foam pieces and a predetermined quantity of an expandable liquid foam insulation is injected into the cavities containing the foam pieces and caused to expand to fill voids in the cavities with the foam pieces forming a homogeneous insulating foam body throughout the cavities while retaining substantially their internal cell/bubble structure.
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