Corrugated paperboard automotive liner

Details Corrugated paperboard automotive liner Corrugated paperboard automotive liner

1988-05-10

1989-12-12

Robinson, Ellis P.

Stock material or miscellaneous articles

Structurally defined web or sheet

Nonplanar uniform thickness material

428182, 428186, 428252, 428286, 4283044, 4283184, 4283188, 428137, 428138, 296211, 296214, 181284, 181288, 181290, 181291, 181292, 181293, B32B 328, E04B 182

Patent

active

048866962

ABSTRACT:
An automotive headliner comprised of a laminate of double corrugated paperboard. Perforations in all the sheets of the laminate except the back paperboard sheet improve the acoustical performance of the liner. A vapor barrier on the back sheet prevents entry of moisture into the laminate from the roof, and a layer of sound dampening material on the front face of the laminate improves the sound absorption of the laminate. The front corrugation is larger than the back corrugation. When molding the laminate it is first moisturized, then heat molded. Heat is applied until the laminate has regained its rigidity.

REFERENCES:
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patent: 3293107 (1966-12-01), Wells et al.
patent: 3507355 (1970-04-01), Lawson
patent: 4077821 (1978-03-01), Doerfling
patent: 4119451 (1978-10-01), Fujii
patent: 4119749 (1978-10-01), Roth et al.
patent: 4131702 (1978-12-01), Alfter et al.
patent: 4150186 (1979-04-01), Kazama
patent: 4227356 (1980-10-01), Stern et al.
patent: 4242172 (1980-12-01), Fujii
patent: 4479992 (1984-10-01), Hesseker et al.

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