Adhesive sheets and methods for their use
OwnerRichard M. Hogan, John R. Wright +1inventors
InventorsRichard M. Hogan, John R. Wright, Bret P. Liebeno
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Abstract
An adhesive sheet is prepared by coextruding a thermoplastic adhesive material such as a thermoplastic polyurethane and a polymeric material such as a polyolefin that forms a polymeric expendable layer. A process for making a multi-layer impact resistant glass composite made up of alternating glass and plastic layers involves interposing the adhesive sheet between the glass layer and the plastic layer, removing at least one polymeric expendable layer from the adhesive sheet, and pressing the layers together to adhere the glass layer to the plastic layer. In alternate embodiments, the adhesive sheet may be provided as a co-extruded A-B composite sheet or as an A-B-A 3-layer composite sheet.
Claims29
A process of glazing by interposing sheet adhesive between glass and plastic layers, comprising:
- providing a first glass layer;
- laying a co-extruded A-B film on the first glass layer with the B layer to the glass, wherein the B layer is an adhesive material and the A layer is an expendable polymeric layer;
- and
- removing the extendable layer to expose the adhesive layer;
- and
- laying a plastic layer on the adhesive layer, wherein the plastic layer has a first and second side, and wherein the first side is in contact with the adhesive.
-30. (canceled)
A method of preparing a multilayer plastic film comprising at least one thermoplastic polyurethane layer in contact with at least one polymeric expendable layer, comprising:
- co-extruding a sheet of thermoplastic polyurethane and a sheet of the polymeric expendable layer.
A process for making a multilayer impact resistant glass composite, comprising the steps of:
- providing a glass layer;
- providing a plastic layer;
- interposing an adhesive between the glass layer and the plastic layer;
- pressing the layers together to adhere the glass layer to the plastic layer;
- wherein the step of interposing the adhesive comprises removing at least one polymeric expendable layer from an adhesive sheet,
- wherein the adhesive sheet is prepared by co-extruding a thermoplastic adhesive material and a polymeric material forming the polymeric expendable layer.
Dependencies are inferred from the claim text.