Method for Making Phase Change Aggregates From a Microencapsulated Phase Change Material Liquid Emulsion
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United States of America Patent
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Issued Date -
May 12, 2011
app pub date -
Jan 20, 2009
filing date -
Jan 20, 2009
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Abandoned
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Abstract
The present invention provides a method of producing manufactured aggregates from a mPCM slurry, by combining a cementitious binder with the slurry in an agglomeration process. Also, other materials may be introduced (e.g., CaO). The agglomerated feed mix then goes through a curing and classification process to meet the size criteria of the end product. The invention also provides a method of manufacturing PCM aggregates that are substantially fire retardant by mixing the PCM particles with magnesium hydroxide or aluminum hydroxide. Water may be added to assure uniform distribution of particles with the hydroxide particles. Alternatively, the hydroxides may be obtained in situ by mixing magnesium oxide or aluminum oxide with water prior to mixing with the PCM particles.
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