The Dow Chemical Company

William P Hovey

Albert J Palfey

James J Kubiak

Curved laminated sandwich panels having a plastic foam core and surface skins are prepared by applying pressure sensitive adhesive to at least one of adjacent faces to be joined, interposing a slip sheet between adjacent surfaces of the sheets to be laminated, positioning the sheets to be laminated within a matched die mold, removing the slip sheets and passing the matched die mold through pressure rolls to deform the sheets and conform them to the shape of the mold.

Method of making curved laminated panels

Curved sandwich panels having a plastic foam core are prepared by providing a flexibilized foam core, laminating inner and outer skins to the core. The outer skin is laminated to the core at locations other than where the panel will be curved, bending the panel to the desired shape and laminating the outer layer to the core.

Curved laminate panels

A curved panel is prepared by bending a rigid plastic foam such as polystyrene foam and simultaneously applying a rigid facing layer on the convex surface thereof.

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Mt. Pleasant, MI, United States of America

William P Hovey