Ammonium polyphosphate microencapsulated with amino-plastic resins
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United States of America Patent
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Nov 19, 1996
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app pub date -
Jun 2, 1995
filing date -
Nov 14, 1991
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Abstract
Ammonium polyphosphate having the general formula (I): (NH.sub.4).sub.n+2 P.sub.n O.sub.3n+1 (I) microencapsulated with condensation compounds obtained by means of the polymerization of polyaminic compositions essentially constituted by derivatives of 2,4,6-triamino-1,3,5-triazine, having the general formula (II): ##STR1## with aldehydes, preferably formaldehyde.
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