B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 5/26 (2006.01) B29C 43/20 (2006.01) B60R 13/02 (2006.01) E04B 1/99 (2006.01) B60R 13/08 (2006.01)
Patent
CA 2090182
-24- INSULATING LAMINATE ABSTRACT OF THE DISCLOSURE An insulating laminate, which is particularly suitable for a sound attenuating barrier, such as a contoured vehicle headliner. The disclosed embodiment includes a finish lamina, which may be preferably cloth-like, and a substrate which is preferably structurally stable and self supporting and which may be adapted to absorb sound primarily at predetermined higher frequencies. In one preferred embodiment, a thin flexible film is located between the finish lamina and the substrate which is adapted to absorb sound primarily at relative lower predetermined frequencies. The film may include a pattern of openings or holes designed to absorb sound primarily at predetermined lower frequencies. In the disclosed embodiment, the substrate includes a porous fiber mat, preferably including fibers having a range of thicknesses to improve sound attenuation at higher frequencies, a structural foam lamina and a reinforcing scrim, preferably comprising spunbonded polyester filaments.
Gowling Lafleur Henderson Llp
Indian Head Industries Inc.
LandOfFree
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