Patent ID: 7984591
Filing Date: 2011-07-26
Classification: B32B,E04C,E04H,F41H,Y10T

Abstract:
1. An impact resistant sheet material comprising: a moisture vapor permeable, water-impermeable, polymeric barrier layer having a hydrohead of at least 55 cm and a moisture vapor transmission rate of at least 35 g/m an impact resistant layer attached to the barrier layer, the impact resistant layer comprising a fabric layer having at least two pluralities of strands that extend in different directions and intersect each other, the impact resistant layer having a tensile strength of at least 445 Newtons, an elongation that is between 2 and 20 percent, and an Impact Resistance as measured by the Free-Falling Dart Method of greater than about 0.7 pounds, and wherein the strands of the impact resistant layer comprise fiberglass.