Branched Polyphosphonates

Disclosed are branched polyphosphonates produced using a polycondensation process, that result in polyphosphonates having Tg of at least 100°C, and which can be further processed to have improved hydro lytic stability compared to other polyphosphonates. The method and polyphosphonate compositions ma...

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Hauptverfasser: VINCIGUERRA, MICHAEL, RICE, NORMAN, LUSIGNEA, RICHARD, FREITAG, DIETER
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creator VINCIGUERRA, MICHAEL
RICE, NORMAN
LUSIGNEA, RICHARD
FREITAG, DIETER
description Disclosed are branched polyphosphonates produced using a polycondensation process, that result in polyphosphonates having Tg of at least 100°C, and which can be further processed to have improved hydro lytic stability compared to other polyphosphonates. The method and polyphosphonate compositions may be made from readily available starting materials providing lower cost fire retardant materials. Also disclosed are polymer compositions that comprise these branched polyphosphonates and at least one other polymer, wherein the resulting polymer compositions exhibit flame retardant properties.
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subjects CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
title Branched Polyphosphonates
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