Multilayer anti-drumming and stiffening sheeting

Details Multilayer anti-drumming and stiffening sheeting Multilayer anti-drumming and stiffening sheeting

1980-02-08

1981-12-29

Cannon, James C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including variation in thickness

181290, 181294, 428168, 428240, 428241, 428246, 428251, 428261, 428271, 428272, 428278, 428283, 428284, 428286, 428290, 428324, 428330, 428331, 428347, 428354, 428489, 428490, C04B 4310, C04B 4312, E04B 182, E04B 184

Patent

active

043083080

ABSTRACT:
A multilayer sheeting for attachment to sheet metal to stiffen the sheet metal and diminish noise. An anti-drumming sheeting consisting of a filler embedded in a mass such as a bituminous material may be bonded to sheet metal, such as the sheet metal employed in manufacture of an automobile door, and a stiffening sheeting which may consist of a matrix such as a fiberglass mat drenched in a thermosetting resin is bonded to the anti-drumming sheeting. Such a multilayer anti-drumming and stiffening sheeting is flexible enough during application to conform to the configuration of the sheet metal, but hardens into a rigid lining component when the sheet metal is heat treated during the normal course of fabrication.

REFERENCES:
patent: 3276928 (1966-10-01), Pearson et al.
patent: 4056161 (1977-11-01), Allen

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