Stabilized red phosphorus for use as flame-retardant, in particular for compositions on the basis of polymers
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United States of America Patent
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Oct 6, 1987
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N/A
app pub date -
Dec 27, 1985
filing date -
Mar 19, 1985
priority date (Note) -
Expired
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Abstract
Stabilized powder of red phosphorus, for use as flame-retardant agent, in particular for compositions on the basis of polymers, constituted by particles of red phosphorus enveloped by a thin capsule constituted by a first layer of Al(OH).sub.3 adhering on to the surface of red phosphorus individual particles, and by a second layer, superimposed onto said first layer, constituted by a crosslinked polyconsensation resin formed by urea-melamine-phenol-formaldehyde.
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