Patent ID: 9096000
Filing Date: 2015-08-04
Classification: B29B,B29C,B29K,B32B,Y10T

Abstract:
1. A thermoplastic prepreg comprising: a plurality of continuous fibers that are substantially oriented in a longitudinal direction, the continuous fibers constituting from about 10 wt. % to about 80 wt. % of the prepreg; a plurality of randomly distributed long fibers, at least a portion of which are oriented at an angle relative to the longitudinal direction, the long fibers constituting from about 2 wt. % to about 35 wt. % of the prepreg; and a resinous matrix that contains one or more thermoplastic polymers and within which the continuous fibers and long fibers are embedded, wherein the thermoplastic polymers constitute from about 10 wt. % to about 80 wt. % of the prepreg; wherein the ratio of the maximum tensile stress of the prepreg in the longitudinal direction to the maximum tensile stress of the prepreg in the transverse direction is from about 1 to about 40; and wherein the long fibers are present within the first layer of the prepreg, the continous fibers are present within a second layer of the prepreg, and at least a portion of the long fibers extend into the second layer.