Method of forming corrugated paperboard automotive liner

Details Method of forming corrugated paperboard automotive liner Method of forming corrugated paperboard automotive liner

1989-10-10

1991-10-15

Ball, Michael W.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156224, 156245, 156253, 156292, 181286, 181288, 181290, 296211, 296214, 428184, 428186, B32B 3118, B32B 3120

Patent

active

050571761

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:
patent: 2043988 (1936-06-01), Brown
patent: 2985553 (1961-05-01), Anderson
patent: 3293107 (1966-12-01), Wells et al.
patent: 4131702 (1978-12-01), Alfter et al.
patent: 4256797 (1981-03-01), Stamper et al.
patent: 4416716 (1983-11-01), Ichikawa et al.

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