DRY MELT COATING PROCESS AND FORMULATION FOR VOLATILE COMPOUNDS
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United States of America Patent
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Issued Date -
Dec 24, 2015
app pub date -
Feb 6, 2014
filing date -
Feb 8, 2013
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Abstract
This invention is based on surprising results that dry-coat particles using a melt process where the dispersed melted polymer core (for example a linear polyester diol containing dispersed HAIP) can bead up effectively in a surrounding hydrophobic powder. One good coating powder is identified as organoclay. Silica coating also works well when combined with clay coating. With the coating provided, this invention enables generation of a stable powder with, for example approximately 20%, HAIP loading using a simple grinding and sieving process. The formulations provided can release less than 25% 1-MCP over a period of 4 hours under stirring conditions.
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