POLYMER COATED FERTILIZER COMPOSITIONS AND METHODS OF MAKING THEREOF
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United States of America Patent
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Issued Date -
Dec 31, 2015
app pub date -
May 19, 2015
filing date -
Jun 27, 2014
priority date (Note) -
Abandoned
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Abstract
The present invention provides a controlled release, solid fertilizer composition comprising a water-soluble central substrate and at least three layers of a water insoluble coating formed by reacting a polyisocyanate and a polyol and further comprising a coating of an organic wax. The present invention provides a better release profile in relation to the amount of coating materials applied than known fertilizers. Preparation systems and processes are also provided.
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