POLYCARBONATE LAMINATE FOR CLOSE-PROXIMITY BLAST EVENTS
The present invention provides a laminate for protecting an object against close-proximity blasts, ballistic and severe storm events, the laminate comprising two or more layers of polycarbonate having layered there between one or more layers of a thermoplastic polyurethane. Also provided is a method of protecting an object from a close-proximity blasts, ballistic and severe storm events, the method comprising placing between the object and the close-proximity blast, ballistic or severe storm event, the inventive laminate. The inventive laminate can afford increased protection to an object against 50 lbs. to 100 lbs. of trinitrotoluene-equivalent from distances as close as about 3 feet (0.91 m).
1 . A laminate for protecting an object against one of a close-proximity blast, a ballistic event and a severe storm event, the laminate comprising two or more layers of polycarbonate having layered therebetween one or more layers of a thermoplastic polyurethane.
2 . The laminate according to claim 1 , wherein the polycarbonate is in the form of sheets.
3 . The laminate according to one of claims 1 and 2 , wherein the thermoplastic polyurethane is in the form of film.
4 . The laminate according to one of claims 1 to 3 , wherein the laminate is at a standoff from about 2 feet (0.61 m) to about 4 feet (1.22 m) from the object.
5 . The laminate according to one of claims 1 to 4 , wherein the laminate is about 4 inches (10.2 cm) to about 6 inches (15.2 cm) in thickness.
6 . The laminate according to claim 5 , wherein the laminate is about 4 inches (10.2 cm) to about 5 inches (12.7 cm) in thickness.
7 . The laminate according to claim 1 , wherein the severe storm event is one selected from the group consisting of hurricane, cyclone, typhoon and tornado.
8 . A protective system for one of a close-proximity blast, a ballistic event and a severe storm event, the system comprising a laminate comprising two or more layers of polycarbonate having layered therebetween one or more layers of a thermoplastic polyurethane.
9 . The protective system according to claim 8 , wherein the polycarbonate is in the form of sheets.
10 . The protective system according to one of claims 8 and 9 , wherein the thermoplastic polyurethane is in the form of film.
11 . The protective system according to one of claims 8 to 10 , wherein the laminate is at a standoff from about 2 feet (0.61 m) to about 4 feet (1.22 m) from an object to be protected.
12 . The protective system according to one of claims 8 to 11 , wherein the laminate is about 4 inches (10.2 cm) to about 6 inches (15.2 cm) in thickness.
13 . The protective system according to claim 12 , wherein the laminate is about 4 inches (10.2 cm) to about 5 inches (12.7 cm) in thickness.
14 . The protective system according to claim 8 , wherein the severe storm event is one selected from the group consisting of hurricane, cyclone, typhoon and tornado.
15 . A method for protecting an object from one of a close-proximity blast, a ballistic event and a severe storm event, the method comprising placing between the object and the blast, ballistic and storm event, a laminate comprising two or more layers of polycarbonate having layered therebetween one or more layers of a thermoplastic polyurethane.
16 . The method according to claim 15 , wherein the polycarbonate is in the form of sheets.
17 . The method according to one of claims 15 and 16 , wherein the thermoplastic polyurethane is in the form of film.
18 . The method according to one of claims 15 to 17 , wherein the laminate is about 4 inches (10.2 cm) to about 6 inches (15.2 cm) in thickness.
19 . The method according to one of claims 15 to 18 , wherein the laminate is about 4 inches (10.2 cm) to about 5 inches (12.7 cm) in thickness.
20 . The method according to claim 15 , wherein the severe storm event is one selected from the group consisting of hurricane, cyclone, typhoon and tornado.
21 . The method according to one of claims 15 to 20 , wherein the laminate is placed at a standoff of about 2 feet (0.61 m) to about 4 feet (1.22 m) from the object.
22 . A method of protecting an object against about 50 lbs. (22.7 kg) to about 100 lbs. (45.4 kg) of trinitrotoluene-equivalent detonated at a distance of about 3 feet (0.914 m), the method comprising placing between the object and the about 50 lbs. to about 100 lbs. of trinitrotoluene-equivalent, a laminate comprising two or more layers of polycarbonate having layered therebetween one or more layers of a thermoplastic polyurethane.