Lightweight transparent armor window

a transparent, armor window technology, applied in protective equipment, transportation and packaging, synthetic resin layered products, etc., can solve the problems of high cost per square inch of these systems, and inability to meet the requirements of large-scale production
US20130305912A1Active Publication Date: 2013-11-21ORAN SAFETY GLASS INC

Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
ORAN SAFETY GLASS INC
Publication Date
2013-11-21

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Abstract

The invention relates to a lightweight transparent armor laminate comprising layers of borosilicate glass, layers of transparent glass-ceramics and a polymer spall layer of polycarbonate and / or polymethyl methacrylate. The layers are bound by polyurethane and / or polyvinylbutyral interlayer films.
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Description

[0001] This application claims the benefit of the filing date of U.S. Provisional Application Ser. No. 60 / 975,661 filed Sep. 27, 2007.

[0002] Commercially available, glass-based transparent armor typically consists of multiple glass and polymer layers, which are laminated together to form a relatively thick composite. The resulting composite must be transparent and essentially free of optical distortion while providing maximum protection against ballistic impact of projectiles and fragments at minimum weight and minimum cost. Of particular interest are transparent laminates, which restrict the destruction caused by the projectile locally to ensure maximum residual vision and provide protection against multiple hits.

[0003] To successfully stop a projectile, impact resistant transparent laminates typically engage various defeat mechanisms, including projectile fragmentation and mass removal by projectile erosion. Systems employing transparent ceramic materials such as, for example, transp...

Claims

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