Patent ID: 6581644
Filing Date: 2003-06-24
Classification: B29C,F16L

Abstract:
A fiber reinforced plastic pipe comprising an elongated, hollow tubular body, concentric with a longitudinal axis, with a wall structure formed from a plurality of layers, at least two of such layers containing fibers fixed in a resin binder, the fibers being disposed at a substantially fixed angle with respect to the longitudinal axis of the pipe, wherein the layers containing fibers consist essentially of an outer axial load bearing layer and one or two inner hoop load bearing layers, the outer layer containing first fibers ranging in thickness from about 1 to about 7 &mgr;m and disposed at a substantially fixed angle ranging from 0Â° to about +/âˆ’30Â°, and the inner layer or layers disposed radially inward of the outer layer containing second fibers disposed at a substantially fixed angle of greater than +/âˆ’30Â°, and ranging in thickness from about 10 &mgr;m to about 24 &mgr;m.