摘要 |
A penetration resistant window includes a sheet of window glass having a penetration resistant layer of ionoplast material adhered thereto. A floating sheet made of hard material such as glass is adhered to the penetration resistant layer in order to provide abrasion resistance. The perimeter of the floating sheet is set back from the perimeter of the window glass. This set back allows the window to be mounted in a window or door frame such that the perimeters of the window glass and penetration resistant sheet are secured to the frame, but the floating sheet is unconstrained by the frame. The penetration resistant window is useful in architectural, residential and institutional applications for resisting debris penetration during hurricanes.
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