Temporary protective covers
First Claim
Patent Images
1. A window assembly comprising:
- a) a window pane having an exterior surface that is durable to a selected washing fluid, the exterior surface carrying a temporary protective cover comprising a sputtered film that can readily be removed by washing with the selected washing fluid, the temporary protective cover being durable to glass tempering, wherein the window pane has an interior surface carrying a low-emissivity coating; and
b) a window frame to which the pane is secured by a bead of sealant, the bead of sealant being bonded on a first side directly to a peripheral portion of the protective cover, said peripheral portion of the cover overlying a peripheral region of the pane'"'"'s exterior surface, the bead of sealant being bonded on a second side to the window frame.
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Accused Products
Abstract
A substrate carrying a temporary protective cover and related methods of producing and processing substrates are described. In one embodiment, a substrate has a durable exterior surface bearing a temporary protective cover that protects the durable surface against contamination but that can readily be readily removed from the durable surface by washing with a given washing fluid.
117 Citations
22 Claims
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1. A window assembly comprising:
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a) a window pane having an exterior surface that is durable to a selected washing fluid, the exterior surface carrying a temporary protective cover comprising a sputtered film that can readily be removed by washing with the selected washing fluid, the temporary protective cover being durable to glass tempering, wherein the window pane has an interior surface carrying a low-emissivity coating; and
b) a window frame to which the pane is secured by a bead of sealant, the bead of sealant being bonded on a first side directly to a peripheral portion of the protective cover, said peripheral portion of the cover overlying a peripheral region of the pane'"'"'s exterior surface, the bead of sealant being bonded on a second side to the window frame. - View Dependent Claims (2)
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- 3. A sheet-like substrate having two generally-opposed major surfaces, one of the major surfaces being an interior surface, the other major surface being an exterior surface, wherein the interior surface carries a low-emissivity coating and the exterior surface carries a temporary protective cover that protects the exterior surface against contamination, the temporary protective cover being stable in the presence of water and being durable to glass tempering but breaking down in the presence of a mild acid or a mild base.
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17. A sheet-like substrate having two generally-opposed major surfaces, one of the major surfaces being an interior surface, the other major surface being an exterior surface, wherein the interior surface carries a low-emissivity coating and the exterior surface carries a temporary protective cover that protects the exterior surface against contamination, the temporary protective cover being stable in the presence of water and durable to glass tempering but breaking down in the presence of a mild acid or a mild base, and wherein the temporary protective cover is formed of an inorganic material.
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18. A sheet-like substrate having two generally-opposed major surfaces, one of the major surfaces being an interior surface, the other major surface being an exterior surface, wherein the interior surface carries a low-emissivity coating and the exterior surface carries a temporary protective cover that protects the exterior surface against contamination, the temporary protective cover being stable in the presence of water and durable to glass tempering but breaking down in the presence of a mild acid or a mild base and wherein the temporary protective cover has a thickness of at least about 25 Å
- but less than about 100 Å
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- but less than about 100 Å
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19. A sheet-like substrate having two generally-opposed major surfaces, one of the major surfaces being an interior surface, the other major surface being an exterior surface, wherein the interior surface carries a low-emissivity coating and the exterior surface carries a temporary protective cover that protects the exterior surface against contamination, the temporary protective cover being stable in the presence of water and durable to glass tempering but breaking down in the presence of a mild acid or a mild base, and wherein the temporary protective cover is formed of a sputtered metal oxide selected from the group consisting of zinc oxide, bismuth oxide, cadmium oxide, iron oxide, and nickel oxide.
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20. A sheet-like substrate having two generally-opposed major surfaces, one of the major surfaces being an interior surface, the other major surface being an exterior surface, wherein the interior surface carries a low-emissivity coating comprising, moving outwardly from the substrate, at least one dielectric layer, a metal layer, and a further dielectric layer, and wherein the exterior surface carries a temporary protective cover that protects the exterior surface against contamination, the temporary protective cover being durable to glass tempering and having a thickness of at least about 25 Å
- but less than about 100 Å and
being formed of a sputtered metal oxide selected from the group consisting of zinc oxide, bismuth oxide, cadmium oxide, iron oxide, and nickel oxide.
- but less than about 100 Å and
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21. A sheet-like substrate having two generally-opposed major surfaces, one of the major surfaces being an interior surface, the other major surface being an exterior surface, wherein the interior surface carries a low-emissivity coating, wherein the exterior surface carries a temporary protective cover that protects the exterior surface against contamination, the temporary protective cover being durable to glass tempering and having a thickness of at least about 25 Å
- but less than about 100 Å and
being formed of a sputtered metal oxide selected from the group consisting of zinc oxide, bismuth oxide, cadmium oxide, iron oxide, and nickel oxide, wherein the substrate is part of a multiple-pane insulating glass unit having confronting surfaces that bound and are oriented toward a between-pane space, and wherein said exterior surface carrying the temporary protective cover is oriented away from said between-pane space.
- but less than about 100 Å and
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22. A sheet-like substrate having two generally-opposed major surfaces, one of the major surfaces being an interior surface, the other major surface being an exterior surface, wherein the interior surface carries a low-emissivity coating and the exterior surface bears a hydrophilic coating carrying a temporary protective cover that protects the hydrophilic coating against contamination, the temporary protective cover being stable in the presence of water and durable to glass tempering but breaking down in the presence of a mild acid or a mild base, and wherein the temporary protective cover has a thickness of at least about 25 Å
- but less than about 100 Å and
comprises a metal oxide selected from the group consisting of zinc oxide, bismuth oxide, cadmium oxide, iron oxide, and nickel oxide.
- but less than about 100 Å and
Specification