LOW VISCOSITY NOISE ATTENUATING MATERIAL FOR AUTOMOTIVE TRIM PARTS

An injection moulded noise attenuating layer for an noise insulating trim part comprising a thermoplastic elastomeric material and an inorganic filler content of at least 50% by weight, preferably between 60 and 85%, based on the final material composition characterised in that the injection moulded...

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Bibliographische Detailangaben
Hauptverfasser:	Berger, Yann, Merrien, Raphael
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS METALLURGY METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS ORGANIC MACROMOLECULAR COMPOUNDS PHYSICS SOUND-PRODUCING DEVICES THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	An injection moulded noise attenuating layer for an noise insulating trim part comprising a thermoplastic elastomeric material and an inorganic filler content of at least 50% by weight, preferably between 60 and 85%, based on the final material composition characterised in that the injection moulded noise attenuating layer has a melt volume index (MVI) of between 100 and 500 cm 3 /10min, preferably between 150 and 350 cm 3 /10min, more preferably between 175 and 225 cm 3 /10min measured according to current ISO 1133-1.