Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1990-11-05
1993-02-23
Ball, Michael W.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156 99, 156228, 156282, 156311, 156163, B29C 5518, B32B 110
Patent
active
051886928
ABSTRACT:
A method for laminating plastic film to glass is provided. The method includes the steps of providing a precast layer of glass on a support and placing a polymer film at a distance therefrom; then providing a ram with a lower surface having substantially the same contour as the top surface of the glass layer and providing a hard, flexible intermediate layer between the ram and the polymer film in which the intermediate layer has a contour that is more convex than that of the lower surface of the ram. The distance between the ram and the precast glass is then decreased such that initially the lower surface of the ram contacts the intermediate layer and the central portion of the intermediate layer contacts the polymer film at its center first and continues to stretch the polymer film into contact with the glass layer at its center outwardly towards the edges. Eventually the pressure is increased between the ram and the glass layer, heat is applied, and the glass layer and polymer film are laminated. The method can also be used to laminate together a polymer film between two glass layers or to laminate together two glass layers with two polymer films, one film between the glass and the other film on the surface of one of the glass layers.
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Ball Michael W.
Hewson Donald E.
Lorin Francis J.
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