Patent ID: 7530372

Claim:
A flexible unbonded pipe for a dynamic pressurized fluid-transfer hose comprising from the inside to the outside, an inner polymer sheath, at least two crossed armor plies, each comprised of at least one wound reinforcing wire comprising a wire or strand, and at least one flexible adjacent layer into which at least one wound reinforcing wire is able to penetrate at least partially, and the at least two plies being wound helically at opposing lay angles A and B, the lay angles A and B are not equal, each lay angle being close to a 55° equilibrium angle, the lay angles having a mean centered on a value close to the equilibrium angle value, and an outer polymer sheath; the pipe further including an anticreep layer arranged around the inner sheath and comprised of at least one winding with contiguous edges, the winding being of a strip with high mechanical properties.