Laminated panes and process for the production of same
First Claim
1. A laminated safety pane suitable for adhesive mounting by use of an adhesive material, comprising a monolithic or laminated substrate of glass and/or of plastics material and a sheet of plastics material comprising at least one external polyurethane film having surface properties, wherein on at least one zone of the polyurethane film, there is contained a bonding prefilm compatible with a layer of said adhesive material to be later deposited, said prefilm being deposited after an electrical treatment applied to at least the zone of said external polyurethane film which is to receive said prefilm, said electrical treatment being chosen from among the treatments of the corona discharge type or the action of an electric field.
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Accused Products
Abstract
This invention relates to a laminated safety pane, comprising a monolithic or laminated substrate of glass and/or of plastics material and a sheet of plastics material comprising at least one external polyurethane film providing desirable surface properties. According to the invention, the pane is provided, on at least one zone of the polyurethane film, with a gluing prefilm compatible with a film of adhesive deposited later, this prefilm being deposited after an electrical treatment applied to at least the zone of the polyurethane film which is to receive the prefilm, this electrical treatment being chosen from among the treatments of the corona discharge type.
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Citations
12 Claims
- 1. A laminated safety pane suitable for adhesive mounting by use of an adhesive material, comprising a monolithic or laminated substrate of glass and/or of plastics material and a sheet of plastics material comprising at least one external polyurethane film having surface properties, wherein on at least one zone of the polyurethane film, there is contained a bonding prefilm compatible with a layer of said adhesive material to be later deposited, said prefilm being deposited after an electrical treatment applied to at least the zone of said external polyurethane film which is to receive said prefilm, said electrical treatment being chosen from among the treatments of the corona discharge type or the action of an electric field.
- 9. A process for the production of a laminated pane ready for mounting by gluing in a window opening, the pane comprising a monolithic or laminated substrate of glass and/or of plastics material and a sheet of plastics material comprising at least one external polyurethane film having surface properties, wherein, after the sheet of plastics material has been assembled with the substrate, at least the zone of said external polyurethane film intended to be glued by means of a bonding adhesive into a window opening, is subjected to electrical treatment chosen from among corona discharge and passage through an electrical field, following which treatment the treated part intended to be glued is coated with a bonding prefilm compatible with said bonding adhesive.
Specification