SELF-EXTINGUISHING POLYOLEFIN COMPOSITION

SELF-EXTINGUISHING POLYOLEFIN COMPOSITION

Self-extinguishing polymeric composition based on a polyolefin, especially polypropylene, of improved thermal stability containing an intumescent fire-retardant system comprised of a phosphorus constituent and a carbonaceous nitrogen constituent. The composition contains more particularly, as the ph...

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1. Verfasser: HORST STAENDEKE
Format: Patent
Sprache:eng
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CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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creator HORST STAENDEKE
description Self-extinguishing polymeric composition based on a polyolefin, especially polypropylene, of improved thermal stability containing an intumescent fire-retardant system comprised of a phosphorus constituent and a carbonaceous nitrogen constituent. The composition contains more particularly, as the phosphorus constituent, a product consisting substantially of (a) 75-99.5 wgt % pulverulent free flowing ammonium polyphosphate of the following general formula H(n-m)+2(NH4)mPnO3n+1 in which n stands for an integer having an average value of from about 20 to 800 and the ratio of m/n is about 1, and (b) about 0.5-25 wgt % of a water-insoluble, optionally cured artificial resin encapsulating the individual ammonium polyphosphate particles.
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subjects CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
title SELF-EXTINGUISHING POLYOLEFIN COMPOSITION
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