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US 12,679,766 B2Granted
Method for producing a safety tempered vehicle glazing unit and safety tempered vehicle glazing unit
AssigneeSaint-Gobain Sekurit France
InventorsLaure-Hélène Guillemot, Svenja Bourone
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Abstract
A method for producing a safety tempered vehicle glazing unit, includes a. tempering a glass pane at a tempering temperature; b. cooling the tempered glass pane to a first temperature T1 above room temperature; c. coating the tempered glass pane with a dispersion of an organic resin at the first temperature T1, and d. drying and cooling to room temperature Tr.
Claims14
A method for producing a safety tempered vehicle glazing unit formed of a single pane, comprising:
- a. tempering a single glass pane at a tempering temperature, including bending the pane to have a concave inner surface;
- b. cooling the tempered glass pane to a first temperature T1 above room temperature Tr;
- c. coating over the concave inner surface of the tempered glass pane with a dispersion of an organic resin at the first temperature T1, and
- d. drying and cooling to room temperature Tr, thus drying the dispersion to form a layer with anti-shatter properties,
- wherein the glazing unit with said layer has a light transmission in the visible spectrum of T-ref±5%, where T-ref is a light transmission in the visible spectrum of a reference glazing unit, which is the same glazing unit without said layer,
- wherein said layer has a thickness of 90 μm-200 μm.
3 more elements
Dependencies are inferred from the claim text.