Auto ceiling panel and its manufacturing process

Details Auto ceiling panel and its manufacturing process Auto ceiling panel and its manufacturing process

1978-04-11

1978-12-05

Van Balen, William J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including aperture

156219, 156245, 156253, 156306, 181290, 264321, 296137A, 428158, 428213, 428313, 428315, B62D 2506, B32B 310, B32B 326

Patent

active

041286839

ABSTRACT:
Highly acoustical auto ceiling panel characterized in that polyethylene foams are laminated with a metal lath sandwiched between them; the surface of the interior side polyethylene foam is coated with a vinyl chloride sheet and this foam with said sheet is provided with numerous small holes through two layer, while the other polyethylene foam across said metal lath is provided with numerous through holes of a diameter larger than that of the hole in the former foam; and the manufacturing process of this auto ceiling panel.

REFERENCES:
patent: 3647588 (1972-03-01), Greig
patent: 3697126 (1972-10-01), Tiffin et al.
patent: 3954537 (1976-05-01), Alfter et al.
patent: 3966526 (1976-06-01), Doerfling
patent: 4073991 (1978-02-01), Focht

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