Patent ID: 8871658

Claim:
A rigid ballistic-resistant composite, comprising: a) a plurality of yarns arranged into a fabric, the yarns having a “Composite-Armor dpf factor” (CA•dpffactor) selected to provide improved ballistic performance; and b) a resin in contact with the fabric to form a rigid composite panel in which the yarns of the fabric are held in place by the resin, wherein CA•dpffactor is determined according to the following equation: CA · dpf factor = dpf yarn ( 1 ( S . G ⁢ . yarn ) 3 ) = dpf yarn × ( S . G ⁢ . yarn ) 3 , wherein dpfyarn is a denier per filament of the yarns, wherein S.G.yarn is a specific gravity of the yarns, and wherein the yarns have a CA•dpffactor of less than 85, and include poly-para-phenylene terephthalamide fibers having a CA•dpffactor of greater than 6.72.