Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1973-03-26
1976-04-06
Powell, William A.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
144309B, 144315R, 144320R, 144327, 156214, B31F 100
Patent
active
039487083
ABSTRACT:
A method of forming a flexible sheetlike structure such as an automotive head-liner by treating a sheet of fiberboard or other woodlike fibrous material with water at an elevated temperature to make the sheet sufficiently ductile to permit forming without tearing or blowing, and placing the water-treated sheet between heated dies to form the sheet to a compound curvature by the application of heat and pressure. The sheet may or may not be perforated. The method also includes finishing one side of the die-formed sheet by securing a decorative or sound-absorbing layer thereto. The sheet is placed on a support and the layer is applied over the adhesive coated upper surface of the sheet. A cover is draped over the support to provide an air seal over the layer and sheet and is drawn against the support by differential pressure, either pressure or vacuum to press the layer against the sheet and adhere the two together.
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patent: 3378422 (1968-04-01), Kemp
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patent: 3627608 (1969-12-01), Steiner et al.
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patent: 3654019 (1972-04-01), Cusick
patent: 3675692 (1972-07-01), Jeans
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Powell William A.
Simmons David A.
Van Dresser Corporation
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