Polymer safety glazing for vehicles
AssigneeRO Technologies, LLC
InventorsStephen S. Wilson, Bart E. Wilson
Life of this patent
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Abstract
A laminate includes a polycarbonate substrate and an ultraviolet hard coat film disposed on the polycarbonate substrate. The ultraviolet hard coat film may include a polyethylene terephthalate (PET) layer, an adhesive interposed between the PET layer and the polycarbonate substrate, and an exterior hard coat disposed on the PET layer opposite the polycarbonate substrate. The exterior hard coat may include UV stabilizers. The laminate may include additional ultraviolet hard coat films stacked on the ultraviolet hard coat film. The laminate may be thermoformed into the shape of a curved vehicle windshield.
Claims17
A laminate comprising:
- a polycarbonate substrate;
- a film disposed on the polycarbonate substrate, the film including a first polyethylene terephthalate (PET) layer, a first adhesive interposed between the first PET layer and the polycarbonate substrate, and a first exterior hard coat disposed on the first PET layer opposite the polycarbonate substrate;
- and
- an interior hard coat disposed on the polycarbonate substrate opposite the first PET layer, the interior hard coat being softer than the first exterior hard coat.
A method comprising:
- depositing a first hard coat on a first side of a polyethylene terephthalate (PET) carrier;
- coating a second side of the PET carrier, opposite the first side, with an adhesive;
- adhering the second side of the PET carrier to a first side of a polycarbonate substrate using the adhesive;
- and
- disposing an interior hard coat on a second side of the polycarbonate substrate opposite the first side, the interior hard coat being softer than the first hard coat.
Dependencies are inferred from the claim text.