Embodiments of a laminate exhibiting enhanced acoustic performance are described. In one or more embodiments, the laminate includes a first substrate, an interlayer structure and a second substrate. One or both the first substrate and the second substrate have a thickness less than about 1.5 mm. In one or more embodiments, the interlayer structure includes a first interlayer and a second interlayer, wherein the first interlayer has a lower shear modulus than the second interlayer and is positioned near the center of the laminate (i.e., positioned at a thickness range from about 0.4t to about 0.6t, where t is the laminate thickness). The laminates exhibit a transmission loss of greater than about 38 dB over a frequency range from about 2500 Hz to about 6000 Hz. Vehicles and architectural panels including the laminates described herein are also provided.
THIN LAMINATE STRUCTURES WITH ENHANCED ACOUSTIC PERFORMANCE
01.09.2016
Patent
Elektronische Ressource
Englisch
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES |