US Patent 7220455 Material-selectable, self-healing, anti-leak method for coating liquid container

A method for applying a plural-layer coating to the outside of a liquid container to act as an anti-leakage barrier in the event of a penetration wound occurring in the container resulting from a penetrating projectile strike, such as a bullet strike. This method includes (a) forming on the outside of such a container, a first layer optimized for providing an elastomeric wound-closure response, (b) forming on the outside of this first layer a second layer optimized for providing combined elastomeric and liquid-imbibing wound-closure responses, and (c) forming on the outside of such a second layer a third, layer optimized in the same manner as the first layer.