MATERIAU ANTI-ACOUSTIQUE, MATERIAU FORMANT BARRIERE FLEXIBLE REDUISANT LA TRANSMISSION DU SON ET PROCEDE DE PRODUCTION

L'INVENTION CONCERNE UN MATERIAU ANTI-ACOUSTIQUE.SELON L'INVENTION, IL CONTIENT UN POLYURETHANE ELASTOMERE RETICULE COMME LIANT ET DES QUANTITES SENSIBLES DE PARTICULES ANTI-ACOUSTIQUES QUI Y SONT INCORPOREES, LE RAPPORT PONDERAL DES PARTICULES AU POLYURETHANE ETANT D'AU MOINS 10.L�...

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1. Verfasser:	GLENN ELTON FULMER ET LOUIS LEONARD WOOD
Format:	Patent
Sprache:	fre
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS REFRACTORIES SLAG THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF NATURAL STONE USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Zusammenfassung:	L'INVENTION CONCERNE UN MATERIAU ANTI-ACOUSTIQUE.SELON L'INVENTION, IL CONTIENT UN POLYURETHANE ELASTOMERE RETICULE COMME LIANT ET DES QUANTITES SENSIBLES DE PARTICULES ANTI-ACOUSTIQUES QUI Y SONT INCORPOREES, LE RAPPORT PONDERAL DES PARTICULES AU POLYURETHANE ETANT D'AU MOINS 10.L'INVENTION S'APPLIQUE NOTAMMENT A LA LUTTE CONTRE LE BRUIT. A sound deadening material is obtained with a very high loading of sound damping materials such as barium sulfate, calcium carbonate or metal powders. These materials are mixed with water and are bound together by adding a water-miscible isocyanate-terminated prepolymer which reacts with the water to form a cross-linked binder.