B - Operations – Transporting – 27 – N
Patent
B - Operations, Transporting
27
N
18/1073
B27N 5/00 (2006.01) D21J 1/10 (2006.01)
Patent
CA 1061074
"METHOD OF TREATING AND FORMING A PANEL" ABSTRACT OF THE DISCLOSURE A method of forming a flexible sheetlike structure such as an automotive headliner by treating a sheet of fiber- board or other similar 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 in- cludes 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.
248904
Na
Van Dresser Corporation
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