COMPOSIZIONI DI POLICARBONATI AROMATICI CHE RITARDANO LA FIAMMA PREPARATE DA DIFENOLI FLUORURATI

COMPOSIZIONI DI POLICARBONATI AROMATICI CHE RITARDANO LA FIAMMA PREPARATE DA DIFENOLI FLUORURATI

Improved flame retardance is imparted to high molecular weight aromatic polycarbonate resins by selecting appropriate fluorinated diphenols and incorporating them in homopolymers or copolymers. The fluorinated diphenols have at least one fluorinated alkyl or fluorinated aryl group upon the methylene...

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Hauptverfasser: MARK VICTOR, HEDGES CHARLES VERNON
Format: Patent
Sprache:ita
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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
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creator MARK VICTOR
HEDGES CHARLES VERNON
description Improved flame retardance is imparted to high molecular weight aromatic polycarbonate resins by selecting appropriate fluorinated diphenols and incorporating them in homopolymers or copolymers. The fluorinated diphenols have at least one fluorinated alkyl or fluorinated aryl group upon the methylene carbon atom positioned between the two phenol ring structures. The polycarbonates having improved flame retardance are made from fluorinated diphenols and halogen-containing carbonate precursors. Copolycarbonates having improved flame retardance are derived from the fluorinated diphenols and non-fluorinated diphenols. The flame retardant polycarbonates may be used in films and molded articles where improved resistance to flame is desirable.
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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 COMPOSIZIONI DI POLICARBONATI AROMATICI CHE RITARDANO LA FIAMMA PREPARATE DA DIFENOLI FLUORURATI
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