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US 9,285,191 B2Granted
Polymer coatings for enhanced and field-repairable transparent armor
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsCharles M. Roland, Raymond M. Gamache
Life of this patent
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Abstract
A coating of atactic polypropylene over a transparent armor substrate improves resistance to penetration while allowing convenient repair of minor abrasions and scratches.
Claims9
A transparent armor system comprising:
- a hard, transparent armor substrate, and
- a transparent coating consisting of atactic polypropylene having a thickness of from about 0.25 cm to about 2.0 cm bonded to the armor substrate as an outside surface.
A vehicle comprising
- a transparent armor comprising:
- a hard, transparent armor substrate, and
- a transparent coating consisting of atactic polypropylene bonded to the armor substrate having a thickness from about 0.25 cm to about 2.0 cm, configured to face an exterior surface of said vehicle as an outside surface,
- wherein said transparent armor system is configured as a window, windscreen, or viewing port of said vehicle.
1 more element
A method of treating a transparent armor system, the method comprising:
- (a) providing an armor system comprising:
- a hard, transparent armor substrate, and
- a transparent coating consisting of atactic polypropylene having a thickness from about 0.25 cm to about 2.0 cm bonded to the armor substrate as an outside surface;
- and
- (b) heating and smoothing the transparent coating, thereby improving optical clarity thereof.
2 more elements
Dependencies are inferred from the claim text.