Acoustical composite headliner
AssigneeJohnson Controls Technology Company
InventorsHarry J. Rozek, Dennis J. Beard, Marie-Christine Knorr, Christoph Jung
Life of this patent
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Abstract
A thermoformed contoured three-dimensional laminated structure having improved sound absorbing characteristics and which can be formed with shorter mold cycle times includes a porous thermoformable fibrous batt layer and a rigid foam layer. The laminated articles are suitable for use as decorative sound absorbing panels for automotive applications, and are well suited for use as vehicle headliners.
Claims27
A thermoformable laminate comprising:
- a porous fibrous batt layer;
- a porous rigid foam layer;
- a reinforcing layer disposed between the fibrous batt layer and the rigid foam layer, the reinforcing layer comprising fibers having a softening temperature greater than fibers of which the fibrous batt is comprised.
A thermoformable laminate comprising:
- a porous fibrous batt layer;
- a porous rigid foam layer;
- a reinforcing layer disposed between the fibrous batt layer and the rigid foam layer, the reinforcing layer comprising fibers having a softening temperature greater than fibers of which the fibrous batt is comprised;
- and
- wherein the reinforcing layer comprises natural fibers.
A molded contoured three-dimensional laminate structure comprising:
- a porous fibrous batt layer;
- a porous rigid foam layer;
- a reinforcing layer disposed between the fibrous batt layer and the rigid foam layer, the reinforcing layer comprising fibers having a softening temperature greater than fibers of which the fibrous batt is comprised;
- and
- wherein the reinforcing layer is adhered to the fibrous batt layer and to the rigid foam layer by a thermoset resin.
A molded contoured three-dimensional laminated structure comprising:
- a porous fibrous batt layer;
- a porous rigid foam layer;
- a reinforcing layer disposed between the fibrous batt layer and the rigid foam layer, the reinforcing layer comprising fibers having a softening temperature greater than fibers of which the fibrous batt is comprised;
- and
- wherein the reinforcing layer comprises natural fibers.
Dependencies are inferred from the claim text.