Process for the production of an asymmetric laminated pane by calendering
AssigneesSaint-Gobain Vitrage, Asahi Glass Company, Limited
InventorsClaude Didelot, Jean Ducret, Edouard Kadzialka
Life of this patent
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Abstract
A process and a device for making asymmetric laminated panes composed of a support and at least one sheet of plastic material by calendaring. A blank sheet of plastic material (15) is brought into contact with the support (11) to be covered by an endless conveyor belt (16). The blank sheet is released progressively so as to bring it into contact with the support (11) just before the pressing passage (3), as the laminated assembly passes into and through the pressing passage.
Claims8
A process for assembling a blank sheet of plastic material with a rigid support for the purpose of forming a laminated pane, comprising the steps of:
- bringing the support to be covered to an upstream end of a passage between rollers of a calenderer;
- electrostatically adhering a blank sheet onto an endless conveyor belt which travels at the same speed as the support to be covered;
- using the endless conveyor belt to bring the blank sheet above, and into contact with, the support to be covered so as to form an assembly of the blank sheet and the support to be covered;
- progressively separating the blank sheet from the endless conveyor by passing the conveyor belt around an electrically grounded guide member having a curve of small radius;
- and
- pressing the assembly of the support and the blank sheet in contact therewith in the passage between the rollers as the assembly passes through the passage between the rollers.
Dependencies are inferred from the claim text.